Gregory Heront Marcarian, M.D.
Internal Medicine Physician · Dearborn Heights, MI
Gregory Heront Marcarian, M.D. is an internal medicine physician with a practice address in Dearborn Heights, Michigan, and NPI 1346228566, issued on Jan 6, 2006. Check the license (Michigan 073156, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Gregory Heront Marcarian
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 073156 MI
Self-reported in NPPES; status is on the state search - Practice location
- 8550 N Silvery LN, Dearborn Heights, MI 48127
- Phone
- (313) 563-2288
- Enumerated
- Jan 6, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (313) 561-7065
- Medicare enrollment
- Enrolled (PECOS I20101221000536); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1995
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 8550 N Silvery LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elaine Atallah, M.D.Internal Medicine Physician1558352955
- Steve Atallah, M.D.Internal Medicine Physician1578554697
- James Bazzi, M.D.Internal Medicine Physician1700265014
- Heront Marcarian, M.D.Internal Medicine Physician1598743353
- Matthew Marcarian, MDInternal Medicine Physician1891773677
Verify Gregory Heront Marcarian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 073156Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% more Medicare Part D claims than the average internal medicine physician in 2024
4,215 Medicare Part D claims for 311 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 47 claims were for opioids.
Most prescribed
- Levothyroxine Sodium232 claims
- Atorvastatin Calcium216 claims
- Rosuvastatin Calcium205 claims
- Metoprolol Succinate147 claims
- Amlodipine Besylate127 claims
- Lisinopril119 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: $1,033.10
58 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through one group practice
- Tenny Internal Medicine PLLCDearborn, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Heront Marcarian among 5,735 internal medicine physician records in Michigan
Gregory Heront Marcarian, M.D. is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 60% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1995 · median 2006 among the 3,564 with a school on file
- Record last updated2007 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 internal medicine physician records list a practice address in Dearborn Heights
They are 19 of the 680 NPPES records with a practice address in Dearborn Heights, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Dearborn Heights → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Redwan Asbahi, M.D.Dearborn Heights, MI 481271730445503
- Steve Atallah, M.D.Dearborn Heights, MI 481271578554697
- Elaine Atallah, M.D.Dearborn Heights, MI 481271558352955
- Danielle Daniel, M.D.Dearborn Heights, MI 481271952381212
- Judith Edge, DODearborn Heights, MI 481271790771475
- Iman Fakih-Elmenini, M.D.Dearborn Heights, MI 481271841242989
- Nidal Jboor, M.D.Dearborn Heights, MI 481271679543425
- Ali Makki, M.D.Dearborn Heights, MI 481271114032414
Common questions
What is Gregory Heront Marcarian, M.D.'s NPI number?
Gregory Heront Marcarian, M.D.'s National Provider Identifier (NPI) is 1346228566, issued on Jan 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Heront Marcarian, M.D. located?
The NPPES record lists a practice address at 8550 N Silvery LN, Dearborn Heights, MI, 48127. Phone: (313) 563-2288. Providers update this record themselves, so call before visiting.
How can I verify Gregory Heront Marcarian, M.D.'s license?
NPPES lists Michigan license number 073156, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory Heront Marcarian, M.D. prescribe under Medicare Part D?
In 2024, Gregory Heront Marcarian, M.D. had 4,215 Medicare Part D claims for 311 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.