Peter Chang, MD
NPI 1780688028 · Family Medicine Physician · San Angelo, TX
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Chang, MD is a Family Medicine Physician provider in San Angelo, TX (NPI 1780688028).
Provider details
- NPI number
- 1780688028
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- C8044 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
21 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
3,749 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 798 | $123 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, Each Additional 20 Minutes99458 | 515 | $36 |
| Collection and Interpretation of Physical Parameters Stored in Computers And/Or Transmitted By the Patient And/Or Caregiver to Qualified Health Care Professional, Requiring 30 Minutes Or More, Per 30 Days99091 | 416 | $52 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 397 | $14 |
| 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'SG2211 | 376 | $16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 259 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 1,630 | 190 |
| Atorvastatin Calcium | 1,434 | 151 |
| Lisinopril | 1,211 | 155 |
| Gabapentin | 1,096 | 130 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 1,033 | 112 |
| Furosemide | 990 | 137 |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$9,488 across 56 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
- 2005-06-01
- Last updated
- 2024-02-15
- Certified
- 2024-02-15
Frequently asked questions
- What is Peter Chang's NPI number?
- Peter Chang's National Provider Identifier (NPI) is 1780688028, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Chang's specialty?
- Peter Chang is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Chang located?
- Peter Chang's practice location on file with NPPES is 303 W Harris Ave Ste 2, San Angelo, TX 76903-6377.
- What is Peter Chang's phone number?
- The practice phone number listed in the NPPES registry for Peter Chang is (325) 794-5440.
- Does Peter Chang accept Medicare?
- Peter Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Chang's NPI active?
- Yes — Peter Chang's NPI (1780688028) is active in the NPPES registry as of the last update on 2024-02-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.