Family Medicine · Battle Creek, MI
NPI
1205814811
Since 2006
Specialty
Family Medicine
Code 207Q00000X
Group practices
1
Medicare group memberships
Hospitals
2
Hospital affiliations
181 W Emmett St
Battle Creek, MI, 49037
Phone (269) 966-2600
Groups this clinician bills Medicare through
Medicare paid, 2024
$2,482
223 services
Medicare patients, 2024
157
Average age 64
Drug cost, 2024
$128K
1,600 prescriptions
Company payments, 2025
$25.41
From 1 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Peter S Chang was code 83036 (blood count), 122 times for 88 patients. In total Peter S Chang billed 223 services in 9 codes, and Medicare paid $2,482.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2026-03-20.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 83036 Blood Count | Office | 122 | 88 | $9.52 | $1,161 |
| 81002 Clinical Chemistry | Office | 43 | 38 | $3.41 | $147 |
| 93005 Electrocardiogram | Office | 16 | 16 | $3.16 | $50.49 |
| 86328 Immunoassay | Office | 14 | 14 | $44.37 | $621 |
| 87880 Immunoassay | Office | 14 | 14 | $16.20 | $227 |
By year: 2022 $567 for 61 services; 2024 $2,482 for 223 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 83036 Blood Count | 122 | 88 | $9.52 | $1,161 |
| 81002 Clinical Chemistry | 43 | 38 | $3.41 | $147 |
| 86328 Immunoassay | 14 | 14 | $44.37 | $621 |
| 87880 Immunoassay | 14 | 14 | $16.20 | $227 |
Medicare prescription drug claims, 2024
In 2024, the drug Peter S Chang prescribed most often to Medicare patients was Atorvastatin Calcium, with 99 prescriptions and refills. In total Peter S Chang wrote 1,600 Medicare prescriptions that cost $128K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Atorvastatin Calcium Generic | 99 | 261 | 34 | $1,038 |
| Lisinopril Generic | 67 | 140 | 17 | $480 |
| Metoprolol Succinate Generic | 62 | 134 | 12 | $627 |
| Amlodipine Besylate Generic | 61 | 156 | 21 | $641 |
| Furosemide Generic | 44 | 59 | Under 11 | $148 |
| Vaqta Hepatitis A Virus Vaccine/Pf | 44 | 44 | 44 | $4,233 |
| Metformin Hcl Generic | 42 | 115 | 14 | $723 |
| Levothyroxine Sodium Generic | 40 | 76 | Under 11 | $318 |
| Gabapentin Generic | 37 | 57 | Under 11 | $567 |
| Glipizide Er Glipizide | 36 | 77 | Under 11 | $228 |
| Omeprazole Generic | 36 | 75 | Under 11 | $372 |
| Methadone Hcl Generic | 32 | 32 | Under 11 | $944 |
| Hydrochlorothiazide Generic | 30 | 60 | Under 11 | $66.77 |
| Simvastatin Generic | 27 | 51 | Under 11 | $160 |
| Tramadol Hcl Generic | 27 | 27 | Under 11 | $219 |
Brand drugs: 299 claims; generic drugs: 1,266 claims; opioid claims: 132.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Peter S Chang $25.41 ($25.41 in general payments such as food, travel and fees) from 1 company. The largest payer was Astellas Pharma US Inc with $25.41.
| Company | Payments | Amount |
|---|---|---|
| Astellas Pharma US Inc 4503.T | 1 | $25.41 |
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.