Mark Feinstein, DO
Family Medicine Physician · Delray Beach, FL
Mark Feinstein, DO is a family medicine physician with a practice address in Delray Beach, Florida, and NPI 1669774881, issued on Nov 19, 2010. Check the license (Florida OS3348, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Mark Feinstein
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- OS3348 FL
Self-reported in NPPES; status is on the state search - Practice location
- 5329 W Atlantic Ave, Delray Beach, FL 33484
- Phone
- (954) 558-1045
- Enumerated
- Nov 19, 2010
- Record last updated
- Mar 22, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (561) 865-4908
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 9,399 in Florida → Look up another NPI →
Also registered at 5329 W Atlantic Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark Feinstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license OS3348Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
20 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Mark Feinstein among 9,399 family medicine physician records in Florida
Mark Feinstein, DO is one of 9,399 family medicine physician records with a practice address in Florida. 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 2010, is newer than 61% of them.
- NPI issued2010 · 61% of these records are older, 37% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2016 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
43 family medicine physician records list a practice address in Delray Beach
They are 43 of the 2,790 NPPES records with a practice address in Delray Beach, and 9,399 family medicine physician records in Florida.
All 9,399 in Florida → Every provider in Delray Beach → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ali Awan, MDDelray Beach, FL 334841992446793
- Gary Cooperstein, D.O.Delray Beach, FL 334841023010006
- Neil Gold, MDDelray Beach, FL 334841154497162
- Fayva Lurie, MDDelray Beach, FL 334841871584292
- Jose Murillo, MDDelray Beach, FL 334841699069914
- Craig Orvieto, D.O.Delray Beach, FL 334841255585634
- Marile Parra Llabres, MDDelray Beach, FL 334841174262265
- Adrea Samoleski, MDDelray Beach, FL 334841386677193
Common questions
What is Mark Feinstein, DO's NPI number?
Mark Feinstein, DO's National Provider Identifier (NPI) is 1669774881, issued on Nov 19, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Mark Feinstein, DO located?
The NPPES record lists a practice address at 5329 W Atlantic Ave, Delray Beach, FL, 33484. Phone: (954) 558-1045. Providers update this record themselves, so call before visiting.
How can I verify Mark Feinstein, DO's license?
NPPES lists Florida license number OS3348, as entered by the provider. 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 Mark Feinstein, DO prescribe under Medicare Part D?
In 2024, Mark Feinstein, DO had 20 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. 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.