Michael Zasloff, M.D.
General Practice Physician · Merion Station, PA
Michael Zasloff, M.D. is a general practice physician with a practice address in Merion Station, Pennsylvania, and NPI 1639406499, issued on Nov 14, 2009. Check the license (Pennsylvania MD-041903-L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Michael Zasloff
- Credential
- M.D.
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- MD-041903-L PA
Self-reported in NPPES; status is on the state search - Practice location
- 274 Linden LN, Merion Station, PA 19066
- Phone
- (484) 433-7807
- Enumerated
- Nov 14, 2009
- Record last updated
- Nov 14, 2009 (not updated in 17 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 345 in Pennsylvania → Look up another NPI →
Verify Michael Zasloff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD-041903-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
99% fewer Medicare Part D claims than the average general practice physician in 2024
19 Medicare Part D claims, against an average of 3,030 among the 8,395 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.
Industry payments in 2024: $12,390.00
2 payments; by number, the most common kind was consulting fee; the largest payer was Incyte Corporation. The 4,259 providers of this specialty with any payment received $1,273.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Michael Zasloff among 345 general practice physician records in Pennsylvania
Michael Zasloff, M.D. is one of 345 general practice physician records with a practice address in Pennsylvania. 45% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 57% of them.
- NPI issued2009 · 57% of these records are older, 37% newer
- In a Medicare fileYes · 45% of these records are
- In the CMS Doctors and Clinicians fileNo · 20% of these records are
- Record last updated2009 · 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 208D00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 general practice physician records list a practice address in Merion Station
They are 2 of the 101 NPPES records with a practice address in Merion Station, and 345 general practice physician records in Pennsylvania.
All 345 in Pennsylvania → Every provider in Merion Station → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Marvin Asnis, DOMerion, PA 190661184679839
- Emmanuel Smith, M.D.Merion Station, PA 190661487688834
- In-Soon Kim, MDMorrisville, PA 190671366514275
- Jason Sing, DOYardley, PA 190671962031559
- Andreas Bollmann, MDMedia, PA 190631407856347
- Richard Dimonte, D.O.Media, PA 190631497863518
- Kanta Diwan, MDMedia, PA 190631689665051
- Mansoor Choudhry, DOPenn Valley, PA 190721649809641
Common questions
What is Michael Zasloff, M.D.'s NPI number?
Michael Zasloff, M.D.'s National Provider Identifier (NPI) is 1639406499, issued on Nov 14, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Michael Zasloff, M.D. located?
The NPPES record lists a practice address at 274 Linden LN, Merion Station, PA, 19066. Phone: (484) 433-7807. Providers update this record themselves, so call before visiting.
How can I verify Michael Zasloff, M.D.'s license?
NPPES lists Pennsylvania license number MD-041903-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.
How much does Michael Zasloff, M.D. prescribe under Medicare Part D?
In 2024, Michael Zasloff, M.D. had 19 Medicare Part D claims; the average among general practice physician prescribers was 3,030. 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.