Doctor profile · Federal record
Dr. Robert Chang, MD
Internal Medicine Physician (CMS: Internal Medicine) · Mount Clemens, MI
- NPI 1093712093
- Accepts Medicare
- 40 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
133 S Main St
Mount Clemens, MI 48043
(586) 468-1600
fax (586) 465-0329 - Mailing address
-
2689 Solution Center
Chicago, IL 606770001
Credentials & registration
- NPI registered
- July 2005 — 21 yrs on file
- Profile last updated
- December 22, 2020
- Year of graduation
- 1986 — 40 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Michigan #4301054727
- Medicaid
- MI #3476505
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1093712093. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,215
Distinct HCPCS
10
Medicare allowed
$75,356
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 386 | 213 | $86 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 187 | 187 | $49 | |
G0444 |
Annual depression screening, 5 to 15 minutes | 165 | 165 | $18 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 155 | 109 | $72 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 58 | 50 | $15 | |
G0008 |
Administration of influenza virus vaccine | 58 | 58 | $31 | |
90662 |
Influenza vaccine split virus, preservative free | 55 | 55 | $72 | |
96372 |
Injection of drug or substance under skin or into muscle | 31 | 23 | $14 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 26 | 26 | $62 | |
36415 |
Insertion of needle into vein for collection of blood sample | 22 | 13 | $8 |
In context: peer comparison
Among 8 peers in Mount Clemens Internal Medicine Physician, average services per provider: 104. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$691
Transactions
34
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| GlaxoSmithKline, LLC. | 6 | $146.72 | |
| Amgen INC. | 6 | $116.23 | |
| Novo Nordisk INC | 4 | $67.78 | |
| Abbott Laboratories | 3 | $66.94 | |
| Abbvie INC. | 2 | $44.86 | |
| Xeris Pharmaceuticals, INC. | 1 | $41.22 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 2 | $37.54 | |
| AstraZeneca Pharmaceuticals Lp | 2 | $34.40 | |
| Astellas Pharma US INC | 2 | $33.81 | |
| Otsuka America Pharmaceutical, INC. | 1 | $28.72 | |
| Merck Sharp & Dohme LLC | 1 | $15.46 | |
| Aimmune Therapeutics, INC. | 1 | $15.11 | |
| Pfizer INC. | 1 | $14.75 | |
| Lilly USA, LLC | 1 | $13.88 | |
| iRhythm Technologies, INC. | 1 | $13.30 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
5,014
Patients
1,383
Total drug cost
$84,458
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 692 | 194 | $11,827 |
| Levothyroxine Sodium | Generic | 631 | 159 | $12,075 |
| Losartan Potassium | Generic | 527 | 152 | $12,828 |
| Amlodipine Besylate | Generic | 441 | 120 | $5,834 |
| Metoprolol Succinate | Generic | 377 | 107 | $10,448 |
| Lisinopril | Generic | 338 | 94 | $4,310 |
| Omeprazole | Generic | 286 | 89 | $5,556 |
| Metformin Hcl | Generic | 282 | 87 | $4,293 |
| Hydrochlorothiazide | Generic | 244 | 71 | $1,927 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 239 | 51 | $5,363 |
Hospital affiliations
Frequently asked questions
What is Dr. Robert Chang's medical specialty?
Dr. Robert Chang practices Internal Medicine Physician in Mount Clemens, MI.
Where does Dr. Robert Chang practice?
Dr. Robert Chang practices at 133 S Main St, Mount Clemens, MI 48043. Office phone: 5864681600.
What is Dr. Robert Chang's NPI?
Dr. Robert Chang's National Provider Identifier (NPI) is 1093712093, issued by NPPES.
Does Dr. Robert Chang accept Medicare assignment?
Yes. Dr. Robert Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Robert Chang commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Annual depression screening, 5 to 15 minutes (HCPCS G0444). Source: CMS Medicare Physician & Other Practitioners file.