Gregory Dunham, MD
NPI 1679556054 · Obstetrics & Gynecology Physician · San Angelo, TX
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Dunham, MD is a Obstetrics & Gynecology Physician provider in San Angelo, TX (NPI 1679556054).
Provider details
- NPI number
- 1679556054
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G5006 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
233 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 89 | $91 |
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 59 | $40 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 49 | $130 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 36 | $8 |
Typical Medicare-allowed amounts for these services range $8–$130 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 220 | 88 |
| Progesterone, Micronizedbrand: Progesterone | 97 | 24 |
| Estrogens, Conjugatedbrand: Premarin | 20 | — |
| Levothyroxine Sodium | 19 | — |
| Valacyclovir Hclbrand: Valacyclovir | 19 | — |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 17 | 16 |
| Celecoxib | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$10,609 across 26 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-21
- Last updated
- 2017-12-28
Frequently asked questions
- What is Gregory Dunham's NPI number?
- Gregory Dunham's National Provider Identifier (NPI) is 1679556054, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Dunham's specialty?
- Gregory Dunham is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Dunham located?
- Gregory Dunham's practice location on file with NPPES is 220 E. Harris, San Angelo, TX 76903.
- What is Gregory Dunham's phone number?
- The practice phone number listed in the NPPES registry for Gregory Dunham is (325) 481-2285.
- Does Gregory Dunham accept Medicare?
- Gregory Dunham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Dunham's NPI active?
- Yes — Gregory Dunham's NPI (1679556054) is active in the NPPES registry as of the last update on 2017-12-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.