MS. COLLEEN MARIE WALKER MD
NPI 1750346078
Internal Medicine in Louisville, KY

NPI Status: Active since April 19, 2006

Contact Information

3945 NANZ AVE
LOUISVILLE, KY
ZIP 40207
Phone: (502) 899-1100
Fax: (502) 614-6508

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  • Individual
  • Female
  • Years of Experience 35
  • Internal Medicine
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled
  • CLIA Number: 18D2154996
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 09-20-2026

About COLLEEN WALKER

This page provides the complete NPI Profile along with additional information for Colleen Walker, an internist established in Louisville, Kentucky with a medical specialization in Internal Medicine and more than 35 years of experience. She graduated from University Of Louisville School Of Medicine in 1991. The healthcare provider is registered in the NPI registry with number 1750346078 assigned on April 2006. The practitioner's primary taxonomy code is 207R00000X with license number 38075 (KY). The provider is registered as an individual and her NPI record was last updated 6 years ago.

NPI
1750346078
Provider Name
MS. COLLEEN MARIE WALKER MD
Gender
Female
Entity Type
Individual
Location Address
3945 NANZ AVE LOUISVILLE, KY 40207
Location Phone
(502) 899-1100
Location Fax
(502) 614-6508
Mailing Address
3945 NANZ AVE LOUISVILLE, KY 40207
Mailing Phone
(502) 899-1100
Mailing Fax
(502) 614-6508
Medical School Name
UNIVERSITY OF LOUISVILLE SCHOOL OF MEDICINE
Graduation Year
1991
Is Sole Proprietor?
Yes
Enumeration Date
04-19-2006
Last Update Date
01-28-2019
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An internist like Colleen Walker 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.
38075
License State
KY
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:

  • 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
  • Clear Silver - HMO
  • Complete Gold - HMO
  • Complete Gold + Vision + Adult Dental - HMO
  • Complete Silver - HMO
  • Complete Silver + Vision + Adult Dental - HMO
  • Elite Gold - HMO
  • Elite Gold + Vision + Adult Dental - HMO
  • Everyday Bronze - HMO
  • Everyday Bronze + 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
  • 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
  • Clear Silver - EPO
  • Elite Bronze - EPO
  • Elite Bronze + Vision + Adult Dental - EPO
  • Elite Gold - EPO
  • Elite Gold + Vision + Adult Dental - EPO
  • Enhanced Diabetes Care Silver with $0 Drug Options - EPO
  • Enhanced Diabetes Care Silver with $0 Drug Options + 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
  • Anthem Bronze Essential 6500 HSA (+ Incentives) - HMO
  • Anthem Bronze Essential 7500 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
  • Anthem Bronze Essential 9200 (+ Incentives) - HMO
  • Anthem Bronze Essential 9200 Adult Dental/Vision (+ Incentives) - HMO
  • Anthem Bronze Essential POS 5500 ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
  • Anthem Bronze Essential POS 7500 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
  • Anthem Gold Essential 1500 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
  • Anthem Gold Essential 2200 ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
  • Anthem Heart Healthy Bronze Essential 4500 ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
  • Anthem Heart Healthy Silver Essential 4500 ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
  • Anthem Silver Essential 3500 HSA (+ Incentives) - HMO
  • Anthem Silver Essential 5000 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
  • Anthem Silver Essential 7000 ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
  • Anthem Silver Essential 7000 Adult Dental/Vision ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
  • Bronze First 7500 $25 Generic Drugs - HMO
  • Bronze First 7500 $25 Generic Drugs Adult Vision & Fitness - HMO
  • Diabetes Gold 1100 $0 Select Drugs & Specialized Services - HMO
  • Diabetes Gold 1100 $0 Select Drugs & Specialized Services Adult Vision & Fitness - HMO
  • Diabetes Silver 4000 $0 Select Drugs & Specialized Services - HMO
  • Diabetes Silver 4000 $0 Select Drugs & Specialized Services Adult Vision & Fitness - HMO
  • Gold 1500 $15 Generic Drugs - HMO
  • Gold 1500 $15 Generic Drugs Adult Vision & Fitness - HMO
  • HDHP Preventive Silver 5500 $0 Select Drugs - HMO
  • Healthy Heart Gold 1500 $0 Select Drugs & Specialized Services - HMO
  • Healthy Heart Gold 1500 $0 Select Drugs & Specialized Services Adult Vision & Fitness - HMO
  • Healthy Heart Silver 4500 $0 Select Drugs & Specialized Services - HMO
  • Healthy Heart Silver 4500 $0 Select Drugs & Specialized Services Adult Vision & Fitness - HMO
  • HSA Eligible Bronze 6000 - HMO
  • Low Premium Bronze 9200 $25 Generic Drugs - HMO
  • Low Premium Bronze 9200 $25 Generic Drugs Adult Vision & Fitness - HMO
  • Low Premium Silver 6000 $3 Generic Drugs - HMO
  • Low Premium Silver 6000 $3 Generic Drugs Adult Vision & Fitness - HMO
  • Platinum Zero $5 Generic Drugs - HMO
  • Platinum Zero $5 Generic Drugs Adult Vision & Fitness - 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.

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.

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
1058625OTHER (01)CIGNA / NCMA
000000303349OTHER (01)ANTHEM / NCMA
025335OTHER (01)SIHO / NCMA
2443777000OTHER (01)PASSPORT ADVANTAGE / NCMA
P00048494OTHER (01)KYRAILROAD MEDICARE
64079247MEDICAID (05)KY 
000023030ROTHER (01)HUMANA / NCMA
50002257OTHER (01)PASSPORT / NCMA
1207494OTHER (01)CHA / NCMA

Medicare Participation & PECOS Enrollment Status

Colleen Walker 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.

Colleen Walker 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: 8224086590

    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: I20050104000688

    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-Wheelchairs (DD000N)

    Lightweight wheelchair (HCPCS:K0003)

    1 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 24 times for 13 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $30.69 for a new patient copayment and $23.48 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 40207 ZIP code area.

New Patients Visit Costs *

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

  • Average New Patient Price $122.77
  • Minimum New Patient Price $52.76
  • Maximum New Patient Price $162.27
  • Average New Patient Copayment $30.69
  • Minimum New Patient Copayment $13.19
  • Maximum New Patient Copayment $40.56

Established Patients Visit Costs *

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

  • Average Established Patient Price $93.94
  • Minimum Established Patient Price $16.53
  • Maximum Established Patient Price $131.99
  • Average Established Patient Copayment $23.48
  • Minimum Established Patient Copayment $4.13
  • Maximum Established Patient Copayment $32.99

* 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.

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Colleen Walker is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
NORTON HOSPITALS, INC200 EAST CHESTNUT STREET
LOUISVILLE, KY 40202
(502) 629-8000Acute Care Hospitals
BAPTIST HEALTH LOUISVILLE4000 KRESGE WAY
LOUISVILLE, KY 40207
(502) 897-8100Acute Care Hospitals

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
18D2154996
Facility Type
Physician Office
Certificate Effective Date
September 21, 2024
Certificate Expiration Date
September 20, 2026
Laboratory Director
MS. COLLEEN WALKER
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Colleen Walker to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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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.
1750346078
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
271006412014
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 7 + 1 + 0 + 0 + 6 + 4 + 1 + 2 + 0 + 1 + 4 + 24 = 52
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
60 - 52 = 88

The NPI number 1750346078 is valid because the calculated check digit 8 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 3 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1134652639DEBORAH ANN BALLARD MD, INTEGRATIVE MEDICINE PLLC
Organization
Internal Medicine3945 NANZ AVE
LOUISVILLE, KY 40207
(502) 593-0327
1720549264COLLEEN WALKER MD PLLC
Organization
Internal Medicine3945 NANZ AVE
LOUISVILLE, KY 40207
(502) 899-1100
1699782391DR. DEBORAH ANN BALLARD MD
Individual
Internal Medicine3945 NANZ AVE
LOUISVILLE, KY 40207
(502) 593-0327

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1750346078, enumerated in the NPI registry as an "individual" on April 19, 2006

The provider is located at 3945 Nanz Ave Louisville, Ky 40207 and the phone number is (502) 899-1100

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

The provider has more than 35 years of experience. She graduated from University Of Louisville School Of Medicine in 1991.

The provider might be accepting Accepts: Ambetter from Home State Health, Ambetter 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 $122.77 with an average copayment of $30.69 for new patient appointments. Established patients should expect a typical charge of $93.94 and an average copayment of 23.48. 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.

The provider's CLIA number is 18D2154996 for a "physician office" facility with a CLIA Certificate of Waiver. This CLIA certificate is issued to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria..

The practitioner is affiliated to the following hospital(s): NORTON HOSPITALS, INC and BAPTIST HEALTH LOUISVILLE. Hospital affiliations are identified through self-reporting data and service claims based on the place of service.

This NPI record was last updated on April 19, 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].
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