Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Gregory Walker , MD, MBA

Dermatology • Waco, TX

Active NPI 1487074084 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

300 Richland West Cir Ste 2c
Waco, TX 767127935

Call 2543406000 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

300 Richland West Cir Ste 2c

Waco, TX 767127935

Telephone 2543406000
Fax 2543406010
Organization at the Same NPPES Address or Phone
Oliver Street 5.01(A) Inc. Facility NPI 1457695413

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Oliver Street 5.01(A) Inc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

Texas Tech University Health Science Center School Of Medicine

Graduation Year

2014

Medicare patients

773 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $552,681 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

Paid by Medicare

About $423,448 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

30-day fills

1,212 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$915,875 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $3,118.53 across 143 records.

By nature of payment

  • Food and Beverage: $3,108.88 across 142 records.
  • Education: $9.65 across 1 record.

Reporting-company totals (3 largest of 21)

  • Regeneron Pharmaceuticals, Inc.: $460.03 across 13 records.
  • ABBVIE INC.: $315.46 across 15 records.
  • UCB, Inc.: $278.24 across 14 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

12 years (graduated 2014)

CMS Doctors and Clinicians data list 2014 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2014

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Walker has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Walker as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Waco and Texas

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 75% of clinicians listed under Dermatology in Texas (2024, 827 clinicians with data). Median for this group: 2,195. Middle half: 1,085 to 4,742.

Too few clinicians listed under Dermatology in Waco have Medicare Part B data for 2024 to compare.

Medicare-allowed amount

A higher Medicare-allowed amount than 85% of clinicians listed under Dermatology in Texas (2024, 827 clinicians with data). Median for this group: $135,212. Middle half: $65,517 to $291,099.

Too few clinicians listed under Dermatology in Waco have Medicare Part B data for 2024 to compare.

Paid by Medicare

A higher Medicare payment amount than 85% of clinicians listed under Dermatology in Texas (2024, 827 clinicians with data). Median for this group: $95,715. Middle half: $45,692 to $209,369.

Too few clinicians listed under Dermatology in Waco have Medicare Part B data for 2024 to compare.

Medicare Part D prescriptions

More Part D prescriptions than 80% of clinicians listed under Dermatology in Texas (2024, 922 clinicians with data). Median for this group: 486. Middle half: 202 to 949.

Too few clinicians listed under Dermatology in Waco have Medicare Part D data for 2024 to compare.

Part D drug cost

A higher Part D drug cost than 95% of clinicians listed under Dermatology in Texas (2024, 922 clinicians with data). Median for this group: $81,547. Middle half: $6,986 to $226,319.

Too few clinicians listed under Dermatology in Waco have Medicare Part D data for 2024 to compare.

10 active clinicians are listed under Dermatology with a practice address in Waco, TX (1,173 in Texas).

Addresses are self-reported to NPPES and may be out of date.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): 143 records totaling $3,118.53.

Manufacturer Payment Nature Product Type Amount ($)
Regeneron Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
DUPIXENT General $133.31
Regeneron Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
LIBTAYO General $128.24
Pfizer Inc.
Food and Beverage
In-kind items and services
CIBINQO General $122.82
Arcutis Biotherapeutics, Inc.
Food and Beverage
In-kind items and services
Zoryve General $112.45
Sanofi and Genzyme US Companies
Food and Beverage
In-kind items and services
DUPIXENT General $33.44
Eli Lilly and Company
Food and Beverage
In-kind items and services
TALTZ General $33.05
Sanofi and Genzyme US Companies
Food and Beverage
In-kind items and services
DUPIXENT General $33.03
Cipher Pharmaceuticals US LLC
Food and Beverage
Cash or cash equivalent
Natroba General $32.50
Sanofi and Genzyme US Companies
Food and Beverage
In-kind items and services
DUPIXENT General $32.32
MIMEDX Group, Inc.
Food and Beverage
In-kind items and services
— General $32.14
Janssen Pharmaceuticals, Inc
Food and Beverage
In-kind items and services
TREMFYA General $32.10
Eli Lilly and Company
Food and Beverage
In-kind items and services
TALTZ General $31.40
ABBVIE INC.
Food and Beverage
In-kind items and services
RINVOQ General $30.59
ABBVIE INC.
Food and Beverage
In-kind items and services
RINVOQ General $30.30
Regeneron Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
DUPIXENT General $30.12
UCB, Inc.
Food and Beverage
In-kind items and services
Bimzelx General $29.20
Bristol Myers Squibb Company
Food and Beverage
Cash or cash equivalent
Sotyktu General $28.24
Regeneron Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
DUPIXENT General $27.87
ABBVIE INC.
Food and Beverage
In-kind items and services
RINVOQ General $27.01
Incyte Corporation
Food and Beverage
Cash or cash equivalent
OPZELURA General $26.89
LEO Pharma Inc.
Food and Beverage
In-kind items and services
ADBRY General $26.64
ABBVIE INC.
Food and Beverage
In-kind items and services
RINVOQ General $26.57
SpringWorks Therapeutics, Inc.
Food and Beverage
In-kind items and services
GOMEKLI General $26.44
ABBVIE INC.
Food and Beverage
In-kind items and services
RINVOQ General $26.40
LEO Pharma Inc.
Food and Beverage
In-kind items and services
ADBRY General $26.30

(top 25 shown)

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2017–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2018–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths
2,067 305 $23.00 $6.60
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
678 468 $309.00 $91.26
17000 Destruction of precancer skin growth, 1 growth
514 360 $231.00 $55.18
17311 Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks
293 227 $2309.00 $642.79
11102 Biopsy of related skin growth, first growth
245 201 $341.00 $92.72
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
211 159 $435.00 $129.40
17312 Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks
161 96 $1402.00 $414.06
17110 Destruction of skin growth, 1-14 growths
118 98 $388.00 $107.91
11103 Biopsy of related skin growth, each additional growth
102 64 $171.00 $50.20
12032 Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm
77 66 $1032.00 $267.39
17004 Destruction of precancer skin growth, 15 or more growths
66 52 $570.00 $167.66
12052 Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 2.6-5.0 cm
62 60 $1072.00 $159.19
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
60 60 $379.00 $112.17
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
59 51 $51.00 $16.71
13132 Complicated repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet, 2.6-7.5 cm
57 53 $1595.00 $236.72
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
47 46 $192.00 $55.37
11603 Removal of cancer skin growth of body, arms, or legs, 2.1-3.0 cm
29 25 $948.00 $139.59
11602 Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm
26 24 $833.00 $123.39
12051 Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 2.5 cm or less
26 25 $964.00 $142.61
17262 Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm
26 21 $608.00 $143.57
69100 Biopsy of ear
25 22 $325.00 $68.84
13121 Complicated repair of wound of scalp, arms, or legs, 2.6-7.5 cm
20 20 $1441.00 $224.42
14060 Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.0 sq cm or less
20 19 $2615.00 $777.24
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
20 20 $567.00 $167.23
12042 Intermediate repair of wound of neck, hands, feet, or genitals, 2.6-7.5 cm
17 15 $1054.00 $229.57

(top 25 shown)

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Ketoconazole Ketoconazole 185 5,517 $2,341.52 103
Triamcinolone Acetonide Triamcinolone Acetonide 176 5,492 $1,857.57 115
Clobetasol Propionate Clobetasol Propionate 132 3,988 $5,572.01 72
Hydrocortisone Hydrocortisone 98 2,356 $611.66 64
Cephalexin Cephalexin 87 346 $239.26 77
Doxycycline Hyclate Doxycycline Hyclate 85 1,606 $1,287.71 62
Mupirocin Mupirocin 85 1,583 $596.49 78
Metronidazole Metronidazole 50 1,430 $1,943.13 26
Clindamycin Phosphate Clindamycin Phosphate 49 1,350 $1,499.20 26
Fluorouracil Fluorouracil 41 1,153 $2,337.84 40
Nystatin Nystatin 34 795 $367.69 17
Skyrizi Pen Risankizumab-Rzaa 22 1,848 $446,985.54 —
Otezla Apremilast 18 660 $106,083.61 —
Dupixent Pen Dupilumab 17 462 $63,641.74 —
Cosentyx Sensoready (2 Pens) Secukinumab 16 448 $185,467.08 —
Humira(Cf) Pen Adalimumab 14 392 $94,397.08 —
Fluocinonide Fluocinonide 11 375 $645.71 —

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2020-08-26
Dermatology Primary Specialty

NUCC Taxonomy Code: 207N00000X

License # reported to NPPES TX R5338

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

Dermatology

NUCC Taxonomy Code: 207N00000X

License # reported to NPPES TX BP20053749

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Texas Medical Board.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - DERMATOLOGY

Medicare Enrollment ID

I20180516001339

Enrollment State Jurisdiction

TX

PECOS Control ID

4587951298

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Oliver Street 5.01(A) Inc

300 Richland W Cir, Waco, TX 767127935

Phone: 2543406000

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

2 listed
NPI 1013352145

Doctor of Medicine (M.D.)

Shea Young , PA-C

Physician Assistant

NPI 1912161589

Physician Assistant (Certified)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

9 Historical Events
📍
Updated Practice Location August 26, 2020

Registered at 300 RICHLAND WEST CIR STE 2C, WACO, TX 767127935 (Tel: 2543406000)

📍
Updated Business Mailing Address August 26, 2020

Registered at 5310 HARVEST HILL RD STE 290, DALLAS, TX 752305826 (Tel: 2144200650)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) August 26, 2020

Dermatology (license number reported to NPPES: TX R5338)

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NPI Profile Active May 20, 2015

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) May 20, 2015

Registered at 2401 S 31ST ST, DEPARTMENT OF DERMATOLOGY, TEMPLE, TX 765080001 (Tel: 2547249290)

📍
Business Mailing Address (Initial Record) May 20, 2015

Registered at 2401 S 31ST ST, DEPARTMENT OF DERMATOLOGY, TEMPLE, TX 765080001 (Tel: 2547249290)

👤
Provider Name / Credentials (Initial Record) May 20, 2015

Recorded as GREGORY WALKER, M.D., M.B.A.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) May 20, 2015

Dermatology (license number reported to NPPES: TX BP20053749)

🟢
Initial NPI Registration & Enumeration April 22, 2014

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1487074084
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 22, 2014
Last Update: August 26, 2020
Sole Proprietor: No

Other Dermatology Specialists in Waco

Healthcare providers in Waco

Mailing Address

5310 Harvest Hill Rd Ste 290

Dallas, TX 752305826

Phone: 2144200650

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.