NPPES file of Aug 9, 2026

Mari A. Siegel, MD

Emergency Medicine Physician · Darby, PA

Mari A. Siegel, MD is an emergency medicine physician with a practice address in Darby, Pennsylvania, and NPI 1760597819, issued on Aug 20, 2006. Check the license (Pennsylvania MD436710, 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
1760597819
Name
Mari A. Siegel
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
MD436710 PA
A105462 CA
227541 MA
Self-reported in NPPES; status is on the state search
Practice location
1500 Lansdowne Ave, Darby, PA 19023
Phone
(617) 251-3526
Enumerated
Aug 20, 2006
Record last updated
Jul 1, 2009 (not updated in 17 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20090713000380); accepts Medicare assignment
Medical or professional school
University Of North Carolina At Chapel Hill School Of Medicine, 2001
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 1500 Lansdowne Ave

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

  1. Mubarak AbdallaStudent in an Organized Health Care Education/Training Program1568045425
  2. Abul Hasan Shadali Abdul KhaderStudent in an Organized Health Care Education/Training Program1356131676
  3. Aisha Abdul Sattar, MDHospitalist Physician1841872280
  4. Reshma Abey, MDStudent in an Organized Health Care Education/Training Program1164362992
  5. Maham AfzalStudent in an Organized Health Care Education/Training Program1831032945
  6. Joshika Agarwal, MDStudent in an Organized Health Care Education/Training Program1598469108

Verify Mari A. Siegel 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 MD436710
    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

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88% fewer Medicare Part D claims than the average emergency medicine physician in 2024

27 Medicare Part D claims for 16 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Mari Siegel27
  2. Specialty average226

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.

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).

Mari A. Siegel among 3,911 emergency medicine physician records in Pennsylvania

Mari A. Siegel, MD is one of 3,911 emergency medicine physician records with a practice address in Pennsylvania. 82% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 69% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2001 · median 2013 among the 2,231 with a school on file
  • Record last updated2009 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

9 emergency medicine physician records list a practice address in Darby

They are 9 of the 465 NPPES records with a practice address in Darby, and 3,911 emergency medicine physician records in Pennsylvania.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Brad Bendesky, MDDarby, PA 190231255369716
  2. Pollianne Bianchi, M.D.Darby, PA 190231447571161
  3. Davis Cho, DODarby, PA 190231124696851
  4. Samuel FarrisDarby, PA 190231740939552
  5. Adam Gamse, MDDarby, PA 190231588839112
  6. John Gooch, M.D,Darby, PA 190231033569850
  7. Kathryn PaparellaDarby, PA 190231538749213
  8. Carly RoeDarby, PA 190231275276073

Common questions

What is Mari A. Siegel, MD's NPI number?

Mari A. Siegel, MD's National Provider Identifier (NPI) is 1760597819, issued on Aug 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mari A. Siegel, MD located?

The NPPES record lists a practice address at 1500 Lansdowne Ave, Darby, PA, 19023. Phone: (617) 251-3526. Providers update this record themselves, so call before visiting.

How can I verify Mari A. Siegel, MD's license?

NPPES lists Pennsylvania license number MD436710, 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 Mari A. Siegel, MD prescribe under Medicare Part D?

In 2024, Mari A. Siegel, MD had 27 Medicare Part D claims for 16 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.