Marc I. Unterman, MD
Cardiovascular Disease Physician · Lawrenceville, GA
Marc I. Unterman, MD is a cardiovascular disease physician with a practice address in Lawrenceville, Georgia, and NPI 1427044858, issued on Sep 21, 2005. Check the license (Georgia 19800, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Marc I. Unterman
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 19800 GA
Self-reported in NPPES; status is on the state search - Practice location
- 766 Walther RD, Lawrenceville, GA 30046
- Phone
- (678) 312-9100
- Enumerated
- Sep 21, 2005
- Record last updated
- Jun 28, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (678) 312-9101
- Medicaid ID
- 00170607D GA
- Medicare enrollment
- Enrolled (PECOS I20050202000391); accepts Medicare assignment
- Medical or professional school
- Emory University School Of Medicine, 1977
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 726 in Georgia → Look up another NPI →
Also registered at 766 Walther RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gregory Fountain, MDObstetrics & Gynecology Physician1366456964
- Michael Lipsitt, MDCardiovascular Disease Physician1043206477
- Katherine Siedor, PAMedical Physician Assistant1285013458
- Marcus Sims, M.D.Cardiovascular Disease Physician1427199546
- Lemuel Villanueva, MDObstetrics & Gynecology Physician1336107978
Verify Marc I. Unterman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 19800Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.7 times the Medicare Part D claims of the average cardiovascular disease physician in 2024
11,456 Medicare Part D claims for 1,411 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.
Most prescribed
- Eliquis943 claims
- Amlodipine Besylate726 claims
- Atorvastatin Calcium722 claims
- Metoprolol Tartrate663 claims
- Metoprolol Succinate657 claims
- Lisinopril641 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 90.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $930.65
45 payments; by number, the most common kind was food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). The 16,686 providers of this specialty with any payment received $3,819.56 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
- Piedmont Cardiology OF Atlanta, LLCConyers, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marc I. Unterman among 726 cardiovascular disease physician records in Georgia
Marc I. Unterman, MD is one of 726 cardiovascular disease physician records with a practice address in Georgia. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 84% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated1977 · median 1999 among the 551 with a school on file
- Record last updated2013 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in Georgia
There are 726 cardiovascular disease physician records in Georgia.
All 726 in Georgia → Every provider in Lawrenceville → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- James Barnhill, MDLawrenceville, GA 300461750391736
- Demir Baykal, MDLawrenceville, GA 300461336158104
- Sreenivasulu Gangasani, MDLawrenceville, GA 300461215923701
- Khalid Hayat, M.D.Lawrenceville, GA 300461578563953
- David Lantz, MDLawrenceville, GA 300461841209665
- Michael Lipsitt, MDLawrenceville, GA 300461043206477
- Joseph Perez, D.O.Lawrenceville, GA 300461194703595
- Anthony Pothoulakis, MDLawrenceville, GA 300461548269012
Common questions
What is Marc I. Unterman, MD's NPI number?
Marc I. Unterman, MD's National Provider Identifier (NPI) is 1427044858, issued on Sep 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Marc I. Unterman, MD located?
The NPPES record lists a practice address at 766 Walther RD, Lawrenceville, GA, 30046. Phone: (678) 312-9100. Providers update this record themselves, so call before visiting.
How can I verify Marc I. Unterman, MD's license?
NPPES lists Georgia license number 19800, as entered by the provider. Search the Georgia Composite Medical Board at https://medicalboard.georgia.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marc I. Unterman, MD prescribe under Medicare Part D?
In 2024, Marc I. Unterman, MD had 11,456 Medicare Part D claims for 1,411 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is Marc I. Unterman, MD's MIPS final score?
The 2023 MIPS final score is 90.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.