NPPES file of Aug 9, 2026

Mitchell Jason Marder, D.O.

Family Medicine Physician · Philadelphia, PA

Mitchell Jason Marder, D.O. is a family medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1285673319, issued on Jun 5, 2006. Check the license (Pennsylvania OS009943L, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1285673319
Name
Mitchell Jason Marder
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
OS009943L PA
Self-reported in NPPES; status is on the state search
Practice location
9331 Old Bustleton Ave, Philadelphia, PA 19115
Phone
(215) 673-1520
Enumerated
Jun 5, 2006
Record last updated
Dec 16, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(215) 673-1980
Medicaid ID
001803010 PA
Medicare enrollment
Enrolled (PECOS I20041022000057); accepts Medicare assignment
Medical or professional school
Philadelphia College Of Osteopathic Medicine, 1997
Telehealth
Offers telehealth (CMS)
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 9331 Old Bustleton Ave

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

  1. Carla Cuoci-Malin, D.O.Family Medicine Physician1598188401
  2. Martin Leicht, MDGeriatric Medicine (Internal Medicine) Physician1841254323
  3. Ellen RiccobeneInternal Medicine Physician1669456893
  4. Gail Sullivan, MDGynecology Physician1245247501
  5. Steven Wolf, DOInternal Medicine Physician1861402828

Verify Mitchell Jason Marder 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 OS009943L
    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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2.6 times the Medicare Part D claims of the average family medicine physician in 2024

9,240 Medicare Part D claims for 507 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Mitchell Marder9,240
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium628 claims
  2. Amlodipine Besylate309 claims
  3. Pantoprazole Sodium294 claims
  4. Rosuvastatin Calcium259 claims
  5. Metoprolol Succinate232 claims
  6. Albuterol Sulfate Hfa231 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: $14.54

1 payment: food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mitchell Marder$14.54
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Temple Physicians IncFort Washington, PA

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

Mitchell Jason Marder among 7,483 family medicine physician records in Pennsylvania

Mitchell Jason Marder, D.O. 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
  • Graduated1997 · median 2005 among the 4,529 with a school on file
  • Record last updated2013 · 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).

800 family medicine physician records list a practice address in Philadelphia

They are 800 of the 42,849 NPPES records with a practice address in Philadelphia, and 7,483 family medicine physician records in Pennsylvania.

The 8 family medicine physician records with the nearest ZIP codes

  1. Prasad Aloni, FNP-CPhiladelphia, PA 191151336963370
  2. Betsy Benjamin, MDPhiladelphia, PA 191151750957809
  3. Rita Carabello, D.O.Philadelphia, PA 191151952346983
  4. Carla Cuoci-Malin, D.O.Philadelphia, PA 191151598188401
  5. Blossom Joy, DOPhiladelphia, PA 191151093784142
  6. Shari Klugman, DOPhiladelphia, PA 191151861448714
  7. Larry Kramer, DOPhila, PA 191151407830086
  8. Adelaida Merker, D.O.Philadelphia, PA 191151104821727

Common questions

What is Mitchell Jason Marder, D.O.'s NPI number?

Mitchell Jason Marder, D.O.'s National Provider Identifier (NPI) is 1285673319, issued on Jun 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mitchell Jason Marder, D.O. located?

The NPPES record lists a practice address at 9331 Old Bustleton Ave, Philadelphia, PA, 19115. Phone: (215) 673-1520. Providers update this record themselves, so call before visiting.

How can I verify Mitchell Jason Marder, D.O.'s license?

NPPES lists Pennsylvania license number OS009943L, 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 Mitchell Jason Marder, D.O. prescribe under Medicare Part D?

In 2024, Mitchell Jason Marder, D.O. had 9,240 Medicare Part D claims for 507 beneficiaries; 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.