Peter Chang, MD
NPI 1205814811 · Family Medicine Physician · Battle Creek, MI
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 Battle Creek, MI (NPI 1205814811).
Provider details
- NPI number
- 1205814811
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301063155 (MI)
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
209 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) |
|---|---|---|
| Hemoglobin A1c Level83036 | 122 | $10 |
| Urinalysis, Manual Test81002 | 43 | $3 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Tracing93005 | 16 | $6 |
| Test for Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antibody, Qualitative Or Semiquantitative86328 | 14 | $44 |
| Detection Test By Immunoassay With Direct Visual Observation for Streptococcus, Group a (strep)87880 | 14 | $16 |
Typical Medicare-allowed amounts for these services range $3–$44 (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 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 99 | 34 |
| Lisinopril | 67 | 17 |
| Metoprolol Succinate | 62 | 12 |
| Amlodipine Besylate | 61 | 21 |
| Furosemide | 44 | — |
| Hepatitis a Virus Vaccine/Pfbrand: Vaqta | 44 | 44 |
| Metformin Hcl | 42 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$68 across 3 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
- 2006-01-04
- Last updated
- 2026-03-20
- Certified
- 2026-03-20
Frequently asked questions
- What is Peter Chang's NPI number?
- Peter Chang's National Provider Identifier (NPI) is 1205814811, 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 181 W Emmett St, Battle Creek, MI 49037-2963.
- What is Peter Chang's phone number?
- The practice phone number listed in the NPPES registry for Peter Chang is (269) 966-2600.
- 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 (1205814811) is active in the NPPES registry as of the last update on 2026-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.