Mark B. Fishtein, D.O.
Psychiatry Physician · Malvern, PA
Mark B. Fishtein, D.O. is a psychiatry physician with a practice address in Malvern, Pennsylvania, and NPI 1487924742, issued on Jan 4, 2012. Check the license (Pennsylvania OS002884-L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark B. Fishtein
- Credential
- D.O.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- OS002884-L PA
Self-reported in NPPES; status is on the state search - Practice location
- 18 Dobs LN, Malvern, PA 19355
- Phone
- (610) 647-3352
- Enumerated
- Jan 4, 2012
- Record last updated
- Jan 4, 2012 (not updated in 14 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,662 in Pennsylvania → Look up another NPI →
Verify Mark B. Fishtein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS002884-LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark B. Fishtein among 2,662 psychiatry physician records in Pennsylvania
Mark B. Fishtein, D.O. is one of 2,662 psychiatry physician records with a practice address in Pennsylvania. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2012, is newer than 66% of them.
- NPI issued2012 · 66% of these records are older, 31% newer
- In a Medicare fileNo · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2012 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Pennsylvania
There are 2,662 psychiatry physician records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,662 in Pennsylvania → Every provider in Malvern → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Mark Demitrack, M.D.Malvern, PA 193551619410842
- Maria Hieble, MDMalvern, PA 193551841356060
- Alan Keller, MDMalvern, PA 193551669526539
- Zachary Guy-FrankGlen Mills, PA 193421700346848
- Mitchell Robert Kho, MDGlen Mills, PA 193421891836862
- Gail Corrado, M.D.Exton, PA 193411780899187
- Christina Flanagan, DOExton, PA 193411033770052
- Sachidanand Kamtam, MDExton, PA 193411649318494
Common questions
What is Mark B. Fishtein, D.O.'s NPI number?
Mark B. Fishtein, D.O.'s National Provider Identifier (NPI) is 1487924742, issued on Jan 4, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Mark B. Fishtein, D.O. located?
The NPPES record lists a practice address at 18 Dobs LN, Malvern, PA, 19355. Phone: (610) 647-3352. Providers update this record themselves, so call before visiting.
How can I verify Mark B. Fishtein, D.O.'s license?
NPPES lists Pennsylvania license number OS002884-L, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.