NPPES file of Aug 9, 2026

Marc Okun, MD

Cardiovascular Disease Physician · Glen Burnie, MD

Marc Okun, MD is a cardiovascular disease physician with a practice address in Glen Burnie, Maryland, and NPI 1295727329, issued on Aug 16, 2005. Check the license (Maryland D28000, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1295727329
Name
Marc Okun
Credential
MD
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
D28000 MD
Self-reported in NPPES; status is on the state search
Practice location
1417 Madison Park Dr, Glen Burnie, MD 21061
Phone
(410) 768-6600
Enumerated
Aug 16, 2005
Record last updated
Mar 19, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(410) 768-3132
Medicaid ID
471871200 MD
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1417 Madison Park Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. David Aiello, MDCardiovascular Disease Physician1669464798
  2. Karen Daniels, CRNPNurse Practitioner1386806339
  3. Lidia Davila, CRNPAcute Care Clinical Nurse Specialist1568823334
  4. Kevin Doyle, MDCardiovascular Disease Physician1457343592
  5. Britney Griffith, NPFamily Nurse Practitioner1952993511
  6. Hyun Kim, MDClinical Cardiac Electrophysiology Physician1750373890

Verify Marc Okun in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D28000
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

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61% more Medicare Part D claims than the average cardiovascular disease physician in 2024

4,968 Medicare Part D claims for 605 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.

  1. Marc Okun4,968
  2. Specialty average3,078

Most prescribed

  1. Metoprolol Succinate539 claims
  2. Atorvastatin Calcium504 claims
  3. Rosuvastatin Calcium300 claims
  4. Eliquis279 claims
  5. Amlodipine Besylate273 claims
  6. Losartan Potassium263 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 MIPS final score for 2023 (Medicare payment program): 60.5 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score39.2
  2. Costout of 100 · 30%49.2
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $56.10

3 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. 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.

  1. Marc Okun$56.10
  2. Specialty average$3,819.56

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Marc Okun among 613 cardiovascular disease physician records in Maryland

Marc Okun, MD is one of 613 cardiovascular disease physician records with a practice address in Maryland. 76% 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, 78% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2012 · 67% 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 Maryland 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 Maryland

There are 613 cardiovascular disease physician records in Maryland.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. David Aiello, MDGlen Burnie, MD 210611669464798
  2. Bassim Badro, M.D.Glen Burnie, MD 210611215941695
  3. Ashwani Bassi, M.D.Glen Burnie, MD 210611790744472
  4. Kevin Doyle, MDGlen Burnie, MD 210611457343592
  5. Basant Khandelwal, M.D.Glen Burnie, MD 210611669437364
  6. Ratnakar Mukherjee, MDGlen Burnie, MD 210611740283027
  7. Jay Penafiel, MDGlen Burnie, MD 210611174515217
  8. Jorge Ramirez, M.D.Glen Burnie, MD 210611679589899

Common questions

What is Marc Okun, MD's NPI number?

Marc Okun, MD's National Provider Identifier (NPI) is 1295727329, issued on Aug 16, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Marc Okun, MD located?

The NPPES record lists a practice address at 1417 Madison Park Dr, Glen Burnie, MD, 21061. Phone: (410) 768-6600. Providers update this record themselves, so call before visiting.

How can I verify Marc Okun, MD's license?

NPPES lists Maryland license number D28000, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Marc Okun, MD prescribe under Medicare Part D?

In 2024, Marc Okun, MD had 4,968 Medicare Part D claims for 605 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.

What is Marc Okun, MD's MIPS final score?

The 2023 MIPS final score is 60.5 of 100. 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.