Registry data as of Aug 27, 2026

Ralph Marcus, D.O.

Adult Medicine Physician · Miami, FL

Ralph Marcus, D.O. is an adult medicine physician with a practice address in Miami, Florida, and NPI 1669531927, issued on Dec 6, 2006. Check the license on the Florida health license search; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1669531927
Name
Ralph Marcus
Credential
D.O.
Primary taxonomy
Adult Medicine Physician 207QA0505X
Practice location
9000 S.W. 87 CT., Miami, FL 33176
Phone
(305) 232-6565
Enumerated
Dec 6, 2006
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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Verify Ralph Marcus in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license searchCheck 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 Florida license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

95% fewer Medicare Part D claims than the average adult medicine physician in 2024

138 Medicare Part D claims for 15 beneficiaries, against an average of 2,896 among the 1,419 providers of this specialty who prescribed in Part D.

  1. Ralph Marcus138
  2. Specialty average2,896

Most prescribed

  1. Clonazepam13 claims
  2. Valsartan13 claims
  3. Amlodipine Besylate12 claims
  4. Simvastatin11 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.

Adult Medicine Physician providers in Florida

There are 308 adult medicine physician records in Florida.

Other adult medicine physician records in Florida

  1. Cesar Abiera, M.D.Deland, FL1205868718
  2. Jessica Adam, PA-CAventura, FL1407519176
  3. Yasmin Akhtar, M.D.Okeechobee, FL1336389592
  4. Aleksey AlekseyenkoPort St Lucie, FL1316326515
  5. Konstantin Alekseyenko, DOPort St Lucie, FL1164801130
  6. Agustin Alfonso, M.D.Miami, FL1508934357
  7. Lienys AlmaguerNaples, FL1164180543
  8. Adam Alpers, D.O.Ocala, FL1184629321
  9. Cheslyn Alphonse, APRNOrlando, FL1275081291
  10. Jerry Alstott, MDMount Dora, FL1467497271

Common questions

What is Ralph Marcus, D.O.'s NPI number?

Ralph Marcus, D.O.'s National Provider Identifier (NPI) is 1669531927, issued on Dec 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ralph Marcus, D.O. located?

The NPPES record lists a practice address at 9000 S.W. 87 CT., Miami, FL, 33176. Phone: (305) 232-6565. Providers update this record themselves, so call before visiting.

How can I verify Ralph Marcus, D.O.'s license?

Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ralph Marcus, D.O. prescribe under Medicare Part D?

In 2024, Ralph Marcus, D.O. had 138 Medicare Part D claims for 15 beneficiaries; the average among adult medicine physician prescribers was 2,896. 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.