GREGORY M. DUNHAM (MD) – Obstetrics & Gynecology Physician, NPI 1679556054
Obstetrics & Gynecology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,164 OBSTETRICS/GYNECOLOGY in TX
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Provider Addresses for GREGORY M. DUNHAM (MD)
PO BOX 22000
SAN ANGELO, TX 769027200
Phone: (325) 658-1511
Type: Mailing
220, East Harris Avenue, Downtown, San Angelo, Tom Green County, Texas, 76903, United States
SAN ANGELO, TX 76903
Phone: (325) 481-2285
Fax: (325) 481-2386
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 50 Open Payments records for all available years, with a total value of $18,423.
Total Amount is formed as General ($18,423) + Research ($0) + Ownership ($0) = $18,423.
Last reported payment date: 2024-12-20 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($18,057).
Total Amount
$18,423
General + Research + Ownership
Payments
50
Total payment records
General Amount
$18,423
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $18,057 |
| Genmab U.S., Inc. | $103 |
| CooperSurgical, Inc. | $44 |
| Gynesonics, Inc. | $44 |
| PFIZER INC. | $40 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2026-01-05
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20070918000307 | I | Obstetrics/Gynecology | TX | TBD |
| I20260105000365 | I | Obstetrics/Gynecology | OK | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 104 | 99 | $0 |
| G0101 | Cervical or vaginal cancer screening; pelvic and clinical breast examination | 75 | 75 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 37 | 31 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 30 | 24 | $0 |
Insurance plans in this area (ZIP 76902)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | TX | |
| Nurse Practitioner | TX | |
| Orthopedic Surgery | TX | |
| - | TX | |
| Family Practice | TX | |
| N E U R O S U R G E R Y | TX | |
| Endocrinology, Internal Medicine | TX | |
| Neurology, Sleep Medicine | TX | |
| Nurse Practitioner | TX | |
| P O D I A T R Y | TX |
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