Robert Chang, MD
Internal Medicine Physician · Mount Clemens, MI
Robert Chang, MD is an internal medicine physician with a practice address in Mount Clemens, Michigan, and NPI 1093712093, issued on Jul 5, 2005. Check the license (Michigan 4301054727, as entered in NPPES) on the Michigan Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Robert Chang
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301054727 MI
Self-reported in NPPES; status is on the state search - Practice location
- 133 S Main St, Mount Clemens, MI 48043
- Phone
- (586) 468-1600
- Enumerated
- Jul 5, 2005
- Entity
- Type 1 · individual
Also registered at 133 S Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nikhil Ambulgekar, M.D.Internal Medicine Physician1497074264
- Christopher Davis, PA-CPhysician Assistant1962637686
- Arsenio De Leon, M.D.Pulmonary Disease Physician1689737041
- Tara Deryavoush, D.OHospitalist Physician1851718092
- Adrienne Doerr, P.A.Physician Assistant1568652410
- Jerome Finkel, M.D.Internal Medicine Physician1942206735
Verify Robert Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine
Search for license 4301054727Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
4.2 times the Medicare Part D claims of the average internal medicine physician in 2024
11,614 Medicare Part D claims for 642 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 488 claims were for opioids.
Most prescribed
- Atorvastatin Calcium700 claims
- Levothyroxine Sodium671 claims
- Losartan Potassium544 claims
- Amlodipine Besylate431 claims
- Metoprolol Succinate383 claims
- Lisinopril293 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $690.72
34 payments, mostly food and beverage; the largest payer was GlaxoSmithKline, LLC.. The 65,274 providers of this specialty with any payment received $2,536.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 hospital and facility affiliations
- Henry Ford Macomb Hospital CorporationClinton Township, MI
- Henry Ford Physician PartnersMount Clemens, MI
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
51 internal medicine physician records list a Mount Clemens practice address
They are 51 of the 858 NPPES records with a Mount Clemens practice address, and 6,589 internal medicine physician records in Michigan.
All 51 in Mount Clemens → All 6,589 in Michigan → Every provider in Mount Clemens →
Other internal medicine physician records in Michigan
- Keith Aaronson, MDAnn Arbor, MI1144305301
- Tomas Abalo, M.D.Iron Mountain, MI1336199975
- Ali Abbas, M.D.Pontiac, MI1972167526
- Hawazin Abbas, MDAuburn Hills, MI1699020677
- Imran Abbasi, D.O.Warren, MI1427409887
- Ramzi Abbasi, MDSaginaw, MI1164270005
- Saadat Abbasi, MDKalamazoo, MI1912005596
- Shahzaman Abbasi, MDLansing, MI1376512111
- Youssef Abbiss, D.O.Mount Clemens, MI1982991881
- Joseph Abbo, MDYpsilanti, MI1982136503
Common questions
What is Robert Chang, MD's NPI number?
Robert Chang, MD's National Provider Identifier (NPI) is 1093712093, issued on Jul 5, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert Chang, MD located?
The NPPES record lists a practice address at 133 S Main St, Mount Clemens, MI, 48043. Phone: (586) 468-1600. Providers update this record themselves, so call before visiting.
How can I verify Robert Chang, MD's license?
NPPES lists Michigan license number 4301054727, as entered by the provider. Search the Michigan Board of Medicine at https://www.michigan.gov/lara/bureau-list/bpl/health/hp-lic-health-prof/medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert Chang, MD prescribe under Medicare Part D?
In 2024, Robert Chang, MD had 11,614 Medicare Part D claims for 642 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.