Peter P. Chang, MD
NPI 1780688028ActiveIndividual· Family Medicine· San Angelo, TX
Family Medicine (MD) with The West Texas Rehabilitation Center and 1 other group, practicing in San Angelo, Texas. Their prescriptions cost Medicare Part D more than their services did: $1,646,934 for 34,460 claims, against $170,620 paid for services in 2024. Abbvie Inc. was the largest of 15 companies reporting payments in 2025, $5,662 in all, mostly consulting fees. Lists Shannon Medical Center as a hospital affiliation.
Overview
| NPI | 1780688028 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 1, 2005 |
| Last updated in NPPES | Feb 15, 2024 |
| Certified by provider | Feb 15, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | G8044 | TX |
| Family Medicine | 207Q00000X | C8044 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Family Practice (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 346 |
|---|---|
| Services billed | 5,534 across 73 procedure codes |
| Paid by Medicare | $170,620 |
Part D prescriptions in 2024
| Prescriptions (claims) | 34,460 · 44,272 30-day fills |
|---|---|
| Patients | 839 |
| Total drug cost | $1,646,934 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 1984 |
|---|---|
| Medicare specialty | Family Practice |
Medical groups
- The West Texas Rehabilitation CenterSan Angelo, TX · 466 clinicians
- Privia Medical Group West Texas, PLLCAbilene, TX · 57 clinicians
Hospital affiliation
- Shannon Medical CenterSan Angelo, TX
Other facilities
- Angels Care Home Health of San AngeloHome health agency · San Angelo, TX
- Centerwell Home HealthHome health agency · Eastland, TX
- Enhabit Home HealthHome health agency · Abilene, TX
- Paradigm Home HealthHome health agency · San Angelo, TX
- Shannon Home Health ServicesHome health agency · San Angelo, TX
- Angels Care HospiceHospice · Wichita Falls, TX
- Enhabit HospiceHospice · Abilene, TX
- Excelacare HospiceHospice · Lubbock, TX
- Hospice of San AngeloHospice · San Angelo, TX
- St. Gabriel's Hospice and Palliative CareHospice · Fort Worth, TX
- Avir at San AngeloNursing home · San Angelo, TX
Industry payments (Open Payments)
- 2025$5,662 · 52 payments from 15 companies
- 2024$9,488 · 56 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $4,861 | 18 |
| Ardelyx, Inc. | $388.07 | 11 |
| Novo Nordisk Inc | $61.58 | 4 |
| Neurocrine Biosciences, Inc. | $51.99 | 3 |
| Axsome Therapeutics, Inc. | $51.00 | 3 |
What the 2025 payments were for
- Consulting Fee$4,675 · 4 payments
- Food and Beverage$967.20 · 47 payments
- Education$20.22 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 65 family medicine physicians in San Angelo · All family medicine physicians in Texas