NPPES file of Aug 9, 2026

Mark B. Fischer, MD

Family Medicine Physician · Plymouth Meeting, PA

Mark B. Fischer, MD is a family medicine physician with a practice address in Plymouth Meeting, Pennsylvania, and NPI 1669415782, issued on Jun 14, 2006. Check the license (Pennsylvania MD073943L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1669415782
Name
Mark B. Fischer
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
MD073943L PA
Self-reported in NPPES; status is on the state search
Practice location
4070 Butler Pike, Plymouth Meeting, PA 19462
Phone
(610) 825-5741
Enumerated
Jun 14, 2006
Record last updated
Aug 20, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(610) 825-1855
Medicaid ID
0018548880001 PA
Medicare enrollment
Enrolled (PECOS I20101115000810); accepts Medicare assignment
Medical or professional school
Temple University School Of Medicine, 1996
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4070 Butler Pike

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sissy John, M.D.Family Medicine Physician1457516957
  2. Jennifer McCarthy, MDFamily Medicine Physician1265476832
  3. Scott Melnick, MDFamily Medicine Physician1801839949
  4. Alan Wiser, MDFamily Medicine Physician1619917002

Verify Mark B. Fischer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD073943L
    Check 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 Pennsylvania 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.

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Bills Medicare through one group practice

  1. Fornance Physician Services IncBlue Bell, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mark B. Fischer among 7,483 family medicine physician records in Pennsylvania

Mark B. Fischer, MD is one of 7,483 family medicine physician records with a practice address in Pennsylvania. 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 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 53% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1996 · median 2005 among the 4,529 with a school on file
  • Record last updated2009 · 58% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 family medicine physician records list a practice address in Plymouth Meeting

They are 17 of the 5,019 NPPES records with a practice address in Plymouth Meeting, and 7,483 family medicine physician records in Pennsylvania.

The 8 family medicine physician records with the nearest ZIP codes

  1. Carl Burnett, D.O., F.A.A.F.P.Plymouth Meeting, PA 194621134232580
  2. Sissy John, M.D.Plymouth Meeting, PA 194621457516957
  3. Alexander Kiotis, DOPlymouth Meeting, PA 194621093732752
  4. Jennifer McCarthy, MDPlymouth Meeting, PA 194621265476832
  5. Scott Melnick, MDPlymouth Meeting, PA 194621801839949
  6. Ashley Miller, D.O.Plymouth Meeting, PA 194621336464049
  7. Philip Pearlstein, DOPlymouth Meeting, PA 194621851318307
  8. Michael Peck, D.O.Plymouth Meeting, PA 194621265427306

Common questions

What is Mark B. Fischer, MD's NPI number?

Mark B. Fischer, MD's National Provider Identifier (NPI) is 1669415782, issued on Jun 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark B. Fischer, MD located?

The NPPES record lists a practice address at 4070 Butler Pike, Plymouth Meeting, PA, 19462. Phone: (610) 825-5741. Providers update this record themselves, so call before visiting.

How can I verify Mark B. Fischer, MD's license?

NPPES lists Pennsylvania license number MD073943L, 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. 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.