TIMOTHY HENNESSY M.D.
NPI 1528045119
Internal Medicine in Wilmington, DE

NPI Status: Active since December 27, 2005

Contact Information

3411 SILVERSIDE RD
WEBSTER BUILDING, SUITE 103
WILMINGTON, DE
ZIP 19810
Phone: (302) 479-8464
Fax: (302) 479-8463

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  • Individual
  • Male
  • Years of Experience 32
  • Internal Medicine
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About TIMOTHY HENNESSY

This page provides the complete NPI Profile along with additional information for Timothy Hennessy, an internist established in Wilmington, Delaware with a medical specialization in Internal Medicine and more than 32 years of experience. He graduated from Jefferson Medical College Of Thomas Jefferson University in 1994. The healthcare provider is registered in the NPI registry with number 1528045119 assigned on December 2005. The practitioner's primary taxonomy code is 207R00000X with license number C10005039 (DE). The provider is registered as an individual and his NPI record was last updated 17 years ago.

NPI
1528045119
Provider Name
TIMOTHY HENNESSY M.D.
Gender
Male
Entity Type
Individual
Location Address
3411 SILVERSIDE RD WEBSTER BUILDING, SUITE 103 WILMINGTON, DE 19810
Location Phone
(302) 479-8464
Location Fax
(302) 479-8463
Mailing Address
1208 MORGAN AVENUE DREXEL HILL, PA 19026
Mailing Phone
(302) 545-8201
Medical School Name
JEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
Graduation Year
1994
Is Sole Proprietor?
No
Enumeration Date
12-27-2005
Last Update Date
04-04-2008
Code Navigator

An internist like Timothy Hennessy is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
C10005039
License State
DE
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Gold S: Aetna network + $0 MinuteClinic + $0 CVS Health Virtual Primary Care - HMO
  • Silver S: Aetna network + $0 MinuteClinic + $0 CVS Health Virtual Primary Care - HMO
  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Complete Silver - EPO
  • Complete Silver + Vision + Adult Dental - EPO
  • Elite Bronze - EPO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Everyday Bronze - EPO
  • Everyday Bronze + Vision + Adult Dental - EPO
  • Everyday Gold - EPO
  • Everyday Gold + Vision + Adult Dental - EPO
  • Premier Silver - EPO
  • Premier Silver + Vision + Adult Dental - EPO
  • Standard Expanded Bronze - EPO
  • Standard Expanded Bronze + Vision + Adult Dental - EPO
  • Standard Gold - EPO
  • Standard Gold + Vision + Adult Dental - EPO
  • Standard Silver - EPO
  • Choice Bronze HSA - HMO
  • Choice Bronze HSA + Vision + Adult Dental - HMO
  • Clear Gold - HMO
  • Clear Gold + Vision + Adult Dental - HMO
  • Complete Silver - HMO
  • Complete Silver + Vision + Adult Dental - HMO
  • Elite Bronze - HMO
  • Elite Bronze + Vision + Adult Dental - HMO
  • Elite Gold - HMO
  • Elite Gold + Vision + Adult Dental - HMO
  • Focused Silver - HMO
  • Focused Silver + Vision + Adult Dental - HMO
  • Standard Expanded Bronze - HMO
  • Standard Expanded Bronze + Vision + Adult Dental - HMO
  • Standard Gold - HMO
  • Standard Gold + Vision + Adult Dental - HMO
  • Standard Silver - HMO
  • Choice Bronze HSA - EPO
  • Choice Bronze HSA + Vision + Adult Dental - EPO
  • Clear Silver - EPO
  • Clear Silver + Vision + Adult Dental - EPO
  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Complete Silver - EPO
  • Complete Silver + Vision + Adult Dental - EPO
  • Elite Bronze - EPO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Everyday Gold - EPO
  • Everyday Gold + Vision + Adult Dental - EPO
  • Standard Expanded Bronze - EPO
  • Standard Expanded Bronze + Vision + Adult Dental - EPO
  • Standard Gold - EPO
  • Standard Gold + Vision + Adult Dental - EPO
  • Standard Silver - EPO
  • Standard Silver + Vision + Adult Dental - EPO
  • Clear Silver - EPO
  • Elite Bronze - EPO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Elite Gold - EPO
  • Elite Gold + Vision + Adult Dental - EPO
  • Everyday Bronze - EPO
  • Everyday Bronze + Vision + Adult Dental - EPO
  • Everyday Gold - EPO
  • Everyday Gold + Vision + Adult Dental - EPO
  • Focused Silver - EPO
  • Focused Silver + Vision + Adult Dental - EPO
  • Standard Expanded Bronze - EPO
  • Standard Expanded Bronze + Vision + Adult Dental - EPO
  • Standard Gold - EPO
  • Standard Gold + Vision + Adult Dental - EPO
  • Standard Silver - EPO
  • Standard Silver + Vision + Adult Dental - EPO
  • Complete Gold - HMO
  • Complete Gold + Vision + Adult Dental - HMO
  • Elite Bronze - HMO
  • Elite Bronze + Vision + Adult Dental - HMO
  • Elite Silver - HMO
  • Elite Silver + Vision + Adult Dental - HMO
  • Everyday Bronze - HMO
  • Everyday Bronze + Vision + Adult Dental - HMO
  • Everyday Gold - HMO
  • Everyday Gold + Vision + Adult Dental - HMO
  • Focused Silver - HMO
  • Focused Silver + Vision + Adult Dental - HMO
  • Standard Expanded Bronze - HMO
  • Standard Expanded Bronze + Vision + Adult Dental - HMO
  • Standard Gold - HMO
  • Standard Gold + Vision + Adult Dental - HMO
  • Standard Silver - HMO
  • Clear Gold - EPO
  • Clear Gold + Vision + Adult Dental - EPO
  • Complete Gold - EPO
  • Complete Gold + Vision + Adult Dental - EPO
  • Elite Silver - EPO
  • Elite Silver + Vision + Adult Dental - EPO
  • Everyday Bronze - EPO
  • Everyday Bronze + Vision + Adult Dental - EPO
  • Focused Silver - EPO
  • Focused Silver + Vision + Adult Dental - EPO
  • Premier Bronze HSA - EPO
  • Premier Bronze HSA + Vision + Adult Dental - EPO
  • Standard Expanded Bronze - EPO
  • Standard Expanded Bronze + Vision + Adult Dental - EPO
  • Standard Gold - EPO
  • Standard Gold + Vision + Adult Dental - EPO
  • Standard Silver - EPO
  • Central Bronze - HMO
  • Central Bronze + Vision + Adult Dental - HMO
  • Central Gold - HMO
  • Central Gold + Vision + Adult Dental - HMO
  • Clear Silver - HMO
  • Everyday Bronze - HMO
  • Everyday Bronze + Vision + Adult Dental - HMO
  • Everyday Gold - HMO
  • Everyday Gold + Vision + Adult Dental - HMO
  • Focused Silver - HMO
  • Focused Silver + Vision + Adult Dental - HMO
  • Standard Expanded Bronze - HMO
  • Standard Expanded Bronze + Vision + Adult Dental - HMO
  • Standard Gold - HMO
  • Standard Gold + Vision + Adult Dental - HMO
  • Standard Silver - HMO
  • Standard Silver + Vision + Adult Dental - HMO
  • AmeriHealth Caritas Next Bronze Essential + No Referrals - HMO
  • AmeriHealth Caritas Next Bronze Premier + No Referrals - HMO
  • AmeriHealth Caritas Next Bronze Signature + No Referrals - HMO
  • AmeriHealth Caritas Next Gold Deluxe + No Referrals - HMO
  • AmeriHealth Caritas Next Gold Signature + No Referrals - HMO
  • AmeriHealth Caritas Next Silver Deluxe + No Referrals - HMO
  • AmeriHealth Caritas Next Silver Premier + No Referrals - HMO
  • AmeriHealth Caritas Next Silver Signature + No Referrals - HMO

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
003294I23MEDICARE PIN (08)DE 

Medicare Participation & PECOS Enrollment Status

Timothy Hennessy is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Timothy Hennessy is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 42396848

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20080319000317

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Durable Medical Equipment

  • DME-Oxygen and Supplies (DC002N)

    Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate (HCPCS:E1390)

    2 DME suppliers used 11 Medicare Claims 11 Services Paid

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Established patient office or other outpatient visit, 20-29 minutes

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

This service was performed 150 times for 136 patients

Established patient office or other outpatient visit, 30-39 minutes

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

This service was performed 537 times for 476 patients

Follow-up hospital inpatient care per day, typically 25 minutes

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

This service was performed 148 times for 75 patients

Follow-up hospital inpatient care per day, typically 35 minutes

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

This service was performed 54 times for 52 patients

Initial hospital inpatient care per day, typically 50 minutes

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

This service was performed 15 times for 15 patients

New patient office or other outpatient visit, 45-59 minutes

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

This service was performed 208 times for 208 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $32.78 for a new patient copayment and $25.17 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 19810 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $131.15
  • Minimum New Patient Price $57.12
  • Maximum New Patient Price $173.08
  • Average New Patient Copayment $32.78
  • Minimum New Patient Copayment $14.28
  • Maximum New Patient Copayment $43.27

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $100.68
  • Minimum Established Patient Price $18.36
  • Maximum Established Patient Price $141.05
  • Average Established Patient Copayment $25.17
  • Minimum Established Patient Copayment $4.59
  • Maximum Established Patient Copayment $35.26

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1528045119
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2548041012
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 5 + 4 + 8 + 0 + 4 + 1 + 0 + 1 + 2 + 24 = 51
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
60 - 51 = 99

The NPI number 1528045119 is valid because the calculated check digit 9 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1659358232 JOSEPH LOUGHRAN M.D.
Individual
Internal Medicine3411 SILVERSIDE RD WEBSTER BUILDING, SUITE 103
WILMINGTON, DE 19810
(302) 479-8464
1932186525 JAMES LOUGHRAN M.D.
Individual
Internal Medicine3411 SILVERSIDE RD WEBSTER BUILDING, SUITE 103
WILMINGTON, DE 19810
(302) 479-8464
1063484442 MARC DAVID GROBMAN D.O.
Individual
Family Medicine3411 SILVERSIDE RD WELDIN BUILDING SUITE 102
WILMINGTON, DE 19810
(302) 479-0580
1376509919MARC GROBMAN INTERNAL MEDICINE & PRIMARY CARE
Organization
Family Medicine3411 SILVERSIDE RD 102 WELDIN BLDG
WILMINGTON, DE 19810
(302) 479-0580
1194781740MRS. JANET AZRAN LCSW
Individual
Social Worker (Clinical)3411 SILVERSIDE RD STE. 102
WILMINGTON, DE 19810
(302) 778-1288
1184680738MRS. AMY MURPHREE POOLE LCSW
Individual
Social Worker (Clinical)3411 SILVERSIDE RD STE 102
WILMINGTON, DE 19810
(302) 778-1288
1023074333 MICHAEL R LODES D.C.
Individual
Chiropractor3411 SILVERSIDE RD HANBY BLDG, SUITE 102
WILMINGTON, DE 19810
(302) 477-1565
1235197997 MICHAEL L SARUK M.D.
Individual
Dermatology (Procedural Dermatology)3411 SILVERSIDE RD SUITE 107; WEBSTER BUILDING
WILMINGTON, DE 19810
(302) 478-8532
1073556874ATLANTIC SKIN & COSMETIC SURGERY GROUP, P.C.
Organization
Dermatology3411 SILVERSIDE RD SUITE 107; WEBSTER BUILDING
WILMINGTON, DE 19810
(302) 478-8532
1891803854 DAMON COZAMANIS D.C.
Individual
Chiropractor3411 SILVERSIDE RD 106 WELDIN BUILDING
WILMINGTON, DE 19810
(302) 437-7246
1639222649MR. JAMES PRATT A.T.C.
Individual
Specialist/Technologist (Athletic Trainer)3411 SILVERSIDE RD SPRINGER BUILDING, SUITE 105
WILMINGTON, DE 19810
(302) 478-5240
1033264684MRS. HOLLY A. CATALANO PT
Individual
Physical Therapist3411 SILVERSIDE RD SPRINGER BUILDING, SUITE 105
WILMINGTON, DE 19810
(302) 478-5240
1700931581MR. ROBERT M. CATALANO MA,PT,CERT.MDT
Individual
Physical Therapist3411 SILVERSIDE RD SPRINGER BLDG. SUITE 105
WILMINGTON, DE 19810
(302) 478-5240
1578692208 FRACES A LEMON PT
Individual
Physical Therapist3411 SILVERSIDE RD
WILMINGTON, DE 19810
(302) 478-2131
1083745939 JEAN B FAY OT
Individual
Occupational Therapist3411 SILVERSIDE RD SPRINGER BLDG., SUITE 105
WILMINGTON, DE 19810
(302) 478-2131
1609075266DR. AZARCON & ASSOCIATES, LLC
Organization
Psychiatry & Neurology (Child & Adolescent Psychiatry)3411 SILVERSIDE RD RODNEY BUILDING, SUITE 107
WILMINGTON, DE 19810
(302) 478-2969
1598949638 ALLEN WEINIGER DC
Individual
Chiropractor3411 SILVERSIDE RD
WILMINGTON, DE 19810
(302) 477-1565
1801123443DR. MARIO J. FRABIZZIO JR. PH.D.
Individual
Psychologist (Clinical)3411 SILVERSIDE RD CONCORD PLAZA 206 BAYNARD BLDG
WILMINGTON, DE 19810
(302) 479-5151
1982920294 SIDNEY M GROBMAN D.O.
Individual
Internal Medicine3411 SILVERSIDE RD SUITE 102, WELDIN BLDG
WILMINGTON, DE 19810
(302) 479-0580
1063738995DR. BRETT C WHARTON D.C.
Individual
Chiropractor3411 SILVERSIDE RD HANBY BUILDING SUITE 102
WILMINGTON, DE 19810
(302) 477-1565

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1528045119, enumerated in the NPI registry as an "individual" on December 27, 2005

The provider is located at 3411 Silverside Rd Webster Building, Suite 103 Wilmington, De 19810 and the phone number is (302) 479-8464

The provider's speciality is Internal Medicine with taxonomy code 207R00000X

The provider has more than 32 years of experience. He graduated from Jefferson Medical College Of Thomas Jefferson University in 1994.

The provider might be accepting Accepts: Aetna CVS Health, Ambetter from Home State Health,. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

Medicare beneficiaries should expect a typical cost of $131.15 with an average copayment of $32.78 for new patient appointments. Established patients should expect a typical charge of $100.68 and an average copayment of 25.17. Please review your insurance plan or contact the provider directly to determine your specific costs.

The most common procedures or services performed by this practitioner are: Established patient office or other outpatient visit, 20-29 minutes, Established patient office or other outpatient visit, 30-39 minutes, Follow-up hospital inpatient care per day, typically 25 minutes, Follow-up hospital inpatient care per day, typically 35 minutes, Initial hospital inpatient care per day, typically 50 minutes and New patient office or other outpatient visit, 45-59 minutes.

This NPI record was last updated on December 27, 2005. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.