DEREK J HERSEY PA
NPI 1114981289
Physician Assistant in Boston, MA

NPI Status: Active since April 14, 2006

Contact Information

133 BROOKLINE AVE
BOSTON, MA
ZIP 02215
Phone: (617) 421-2194
Fax: (617) 421-2192

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  • Individual
  • Male
  • Years of Experience 29
  • Physician Assistant
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About DEREK HERSEY

This page provides the complete NPI Profile along with additional information for Derek Hersey, a primary care provider established in Boston, Massachusetts with a medical specialization in Physician Assistant and more than 29 years of experience. The healthcare provider is registered in the NPI registry with number 1114981289 assigned on April 2006. The practitioner's primary taxonomy code is 363A00000X with license number 1256 (MA). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI
1114981289
Provider Name
DEREK J HERSEY PA
Gender
Male
Entity Type
Individual
Location Address
133 BROOKLINE AVE BOSTON, MA 02215
Location Phone
(617) 421-2194
Location Fax
(617) 421-2192
Mailing Address
133 BROOKLINE AVE BOSTON, MA 02215
Mailing Phone
(617) 421-2194
Mailing Fax
(617) 421-2192
Medical School Name
OTHER
Graduation Year
1997
Is Sole Proprietor?
No
Enumeration Date
04-14-2006
Last Update Date
01-08-2021
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A primary care provider (PCP) like Derek Hersey sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, 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

Physician Assistant

Taxonomy Code
363A00000X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
1256
License State
MA
Taxonomy Description
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1363AM0700XPhysician Assistants & Advanced Practice Nursing Providers

Physician Assistant
Medical

1256 (MA)

Medicare Participation & PECOS Enrollment Status

Derek Hersey 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.

Derek Hersey 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: 9133276926

    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: I20090414000369

    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

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $24.41 for a new patient copayment and $19.71 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 02215 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $97.64
  • Minimum New Patient Price $63.72
  • Maximum New Patient Price $189.86
  • Average New Patient Copayment $24.41
  • Minimum New Patient Copayment $15.93
  • Maximum New Patient Copayment $47.46

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99213

  • Average Established Patient Price $78.84
  • Minimum Established Patient Price $21.07
  • Maximum Established Patient Price $155.29
  • Average Established Patient Copayment $19.71
  • Minimum Established Patient Copayment $5.26
  • Maximum Established Patient Copayment $38.82

* 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.

Reviews for DEREK J HERSEY PA

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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.
1114981289
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
21241882216
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 1 + 2 + 4 + 1 + 8 + 8 + 2 + 2 + 1 + 6 + 24 = 61
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
70 - 61 = 99

The NPI number 1114981289 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
1124024013 MARSHALL S KATZ M.D.
Individual
Internal Medicine (Cardiovascular Disease)133 BROOKLINE AVE HARVARD VANGUARD MEDICAL ASSOCIATES
BOSTON, MA 02215
(617) 421-6050
1801898275 JENNIFER FOURNIER N.P.
Individual
Nurse Practitioner133 BROOKLINE AVE
BOSTON, MA 02215
(617) 421-1126
1134112188DR. CHRISTOPHER MICHAEL ANDREOLI M.D.
Individual
Ophthalmology133 BROOKLINE AVE OPHTHALMOLOGY DEPT
BOSTON, MA 02215
(617) 421-1151
1487644076 DIXIE MILLS MD
Individual
Surgery133 BROOKLINE AVE SURGERY DEPT
BOSTON, MA 02215
(617) 421-8749
1881672186 NATALIA KANDROR M.D.
Individual
Pediatrics133 BROOKLINE AVE
BOSTON, MA 02215
(617) 421-8888
1669451514 ROBB SCOTT FRIEDMAN M.D.
Individual
Internal Medicine (Hematology & Oncology)133 BROOKLINE AVE HEMATOLOGY - ONCOLOGY DEPT
BOSTON, MA 02215
(617) 421-5950
1477523546DR. MICHAEL ADRIAN WILLIAMS M.D.
Individual
Otolaryngology (Pediatric Otolaryngology)133 BROOKLINE AVE
BOSTON, MA 02215
(617) 421-5984
1063482032 SUSAN G. BOLTON CCC-A
Individual
Audiologist133 BROOKLINE AVE
BOSTON, MA 02215
(617) 421-5984
1619947603 MELISSA L. MORGAN CCC
Individual
Audiologist133 BROOKLINE AVE
BOSTON, MA 02215
(617) 421-5984
1326018144DR. KELLY MARIE MACAULAY MD
Individual
Pediatrics133 BROOKLINE AVE
BOSTON, MA 02215
(617) 421-8888
1730150285 FRANCIS X CAMPION M.D.
Individual
Internal Medicine133 BROOKLINE AVE INTERNAL MEDICINE
BOSTON, MA 02215
(617) 421-5804
1063484426 CALVIN J COHEN M.D.
Individual
Internal Medicine133 BROOKLINE AVE INTERNAL MEDICINE
BOSTON, MA 02215
(617) 421-5804
1073586038 JERRY S DUBNOFF M.D.
Individual
Internal Medicine133 BROOKLINE AVE INTERNAL MEDICINE
BOSTON, MA 02215
(617) 421-8843
1598738494 MELISSA S. GILMAN RD
Individual
Dietitian, Registered133 BROOKLINE AVE
BOSTON, MA 02215
(617) 629-6444
1811960735 JULIENNE M. SEED RD
Individual
Dietitian, Registered133 BROOKLINE AVE
BOSTON, MA 02215
(617) 629-6444
1619940285 CYNTHIA J CUNNINGHAM NP
Individual
Nurse Practitioner (Pediatrics)133 BROOKLINE AVE
BOSTON, MA 02215
(617) 421-1000
1528032182 ANN M BRAGAN NP
Individual
Nurse Practitioner133 BROOKLINE AVE
BOSTON, MA 02215
(617) 421-1000
1902870199 MINDY GOLD NP
Individual
Nurse Practitioner133 BROOKLINE AVE
BOSTON, MA 02215
(617) 421-1000
1356316608 GREGORY A GORDON M.D.
Individual
Internal Medicine133 BROOKLINE AVE INTERNAL MEDICINE
BOSTON, MA 02215
(617) 421-8843
1174599492 LINDA L OLIVER PA
Individual
Physician Assistant133 BROOKLINE AVE
BOSTON, MA 02215
(617) 421-1000

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1114981289, enumerated in the NPI registry as an "individual" on April 14, 2006

The provider is located at 133 Brookline Ave Boston, Ma 02215 and the phone number is (617) 421-2194

The provider's speciality is Physician Assistant with taxonomy code 363A00000X

The provider has more than 29 years of experience.

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 $97.64 with an average copayment of $24.41 for new patient appointments. Established patients should expect a typical charge of $78.84 and an average copayment of 19.71. Please review your insurance plan or contact the provider directly to determine your specific costs.

This NPI record was last updated on April 14, 2006. 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.