NPPES file of Aug 9, 2026

Michael Seidman, MD

Hematology & Oncology Physician · Horsham, PA

Michael Seidman, MD is a hematology & oncology physician with a practice address in Horsham, Pennsylvania, and NPI 1982728283, issued on Mar 19, 2007. Check the license (Pennsylvania MD425574, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1982728283
Name
Michael Seidman
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
MD425574 PA
Self-reported in NPPES; status is on the state search
Practice location
201 Gibraltar RD Ste 120, Horsham, PA 19044
Phone
(215) 706-2034
Enumerated
Mar 19, 2007
Record last updated
Sep 3, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(215) 706-4176
Medicaid IDs
102170595-0001 PA
102170595-0003 PA
Medicare enrollment
Enrolled (PECOS I20080822000127); accepts Medicare assignment
Medical or professional school
Temple University School Of Medicine, 2002
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 201 Gibraltar RD Ste 120

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

  1. Jessica Berman, M.D.Hematology & Oncology Physician1245240449
  2. Marc Chernoff, D.O.Hematology & Oncology Physician1770593899
  3. Jason Damsker, M.D.Hematology & Oncology Physician1427068683
  4. Peter Pickens, M.D.Hematology & Oncology Physician1528078698
  5. Joseph Potz, M.D.Hematology & Oncology Physician1578572962

Verify Michael Seidman 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 MD425574
    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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12% more Medicare Part D claims than the average hematology & oncology physician in 2024

981 Medicare Part D claims for 233 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 26 claims were for opioids.

  1. Michael Seidman981
  2. Specialty average877

Most prescribed

  1. Anastrozole228 claims
  2. Eliquis86 claims
  3. Exemestane62 claims
  4. Ondansetron Hcl42 claims
  5. Hydroxyurea34 claims
  6. Xarelto30 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.

The MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score98.5
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%96.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $5,322.11

7 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Seidman$5,322.11
  2. Specialty average$7,481.41

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 Faculty Practice Plan IncPhiladelphia, PA

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

Michael Seidman among 784 hematology & oncology physician records in Pennsylvania

Michael Seidman, MD is one of 784 hematology & oncology physician records with a practice address in Pennsylvania. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 45% of them.

  • NPI issued2007 · 45% of these records are older, 46% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2002 · median 2004 among the 553 with a school on file
  • Record last updated2019 · 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 207RH0003X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

6 hematology & oncology physician records list a practice address in Horsham

They are 6 of the 505 NPPES records with a practice address in Horsham, and 784 hematology & oncology physician records in Pennsylvania.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Jessica Berman, M.D.Horsham, PA 190441245240449
  2. Marc Chernoff, D.O.Horsham, PA 190441770593899
  3. Jason Damsker, M.D.Horsham, PA 190441427068683
  4. Peter Pickens, M.D.Horsham, PA 190441528078698
  5. Joseph Potz, M.D.Horsham, PA 190441578572962
  6. Youval Katz, MD, MSLanghorne, PA 190471609052174
  7. Ajay Kumar, MDLanghorne, PA 190471376831859
  8. Daniel Lebovic, MDLanghorne, PA 190471568645950

Common questions

What is Michael Seidman, MD's NPI number?

Michael Seidman, MD's National Provider Identifier (NPI) is 1982728283, issued on Mar 19, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Michael Seidman, MD located?

The NPPES record lists a practice address at 201 Gibraltar RD Ste 120, Horsham, PA, 19044. Phone: (215) 706-2034. Providers update this record themselves, so call before visiting.

How can I verify Michael Seidman, MD's license?

NPPES lists Pennsylvania license number MD425574, 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 Seidman, MD prescribe under Medicare Part D?

In 2024, Michael Seidman, MD had 981 Medicare Part D claims for 233 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Michael Seidman, MD's MIPS final score?

The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.