Marc B. Osias, MD
Urology Physician · East Norriton, PA
Marc B. Osias, MD is a urology physician with a practice address in East Norriton, Pennsylvania, and NPI 1821081753, issued on Aug 25, 2005. Check the license (Pennsylvania MD023442E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Marc B. Osias
- Credential
- MD
- Primary taxonomy
- Urology Physician 208800000X
- License number
- MD023442E PA
Self-reported in NPPES; status is on the state search - Practice location
- 325 West Germantown Pike, East Norriton, PA 19403
- Phone
- (610) 272-1881
- Enumerated
- Aug 25, 2005
- Record last updated
- May 24, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (610) 275-8819
- Medicaid ID
- 0006554130001 PA
- Entity
- Type 1 · individual
8 nearest urology physician records → All 663 in Pennsylvania → Look up another NPI →
Also registered at 325 West Germantown Pike
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dennis Braun, MDUrology Physician1659364537
Verify Marc B. Osias in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD023442ECheck 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 urology physician in 2024
14 Medicare Part D claims, against an average of 1,340 among the 10,782 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.
Marc B. Osias among 663 urology physician records in Pennsylvania
Marc B. Osias, MD is one of 663 urology physician records with a practice address in Pennsylvania. 80% 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 · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2011 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in Pennsylvania
There are 663 urology physician records in Pennsylvania.
All 663 in Pennsylvania → Every provider in East Norriton → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Dennis Braun, MDEast Norriton, PA 194031659364537
- Brian Rosenthal, DOEast Norristown, PA 194031922091891
- Jerry Gotlieb, MDNorristown, PA 194011336132968
- Robert Perch, MDKing Of Prussia, PA 194061649390451
- Michael Chiusano, DOWest Grove, PA 193901366415150
- Donald Andersen, M.D.West Chester, PA 193801003846817
- William Merriam, M.D.West Chester, PA 193801912043258
- Ilene Wong, M.D.West Chester, PA 193801477740934
Common questions
What is Marc B. Osias, MD's NPI number?
Marc B. Osias, MD's National Provider Identifier (NPI) is 1821081753, issued on Aug 25, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Marc B. Osias, MD located?
The NPPES record lists a practice address at 325 West Germantown Pike, East Norriton, PA, 19403. Phone: (610) 272-1881. Providers update this record themselves, so call before visiting.
How can I verify Marc B. Osias, MD's license?
NPPES lists Pennsylvania license number MD023442E, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marc B. Osias, MD prescribe under Medicare Part D?
In 2024, Marc B. Osias, MD had 14 Medicare Part D claims; the average among urology physician prescribers was 1,340. 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.