NPPES file of Aug 9, 2026

William Robert Reis, MD

Emergency Medicine Physician · Philadelphia, PA

William Robert Reis, MD is an emergency medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1053061903, issued on Mar 24, 2022. Check the license (Pennsylvania MD486300, 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
1053061903
Name
William Robert Reis
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
MD486300 PA
Self-reported in NPPES; status is on the state search
Practice location
3400 Spruce St, Philadelphia, PA 19104
Phone
(215) 662-6698
Enumerated
Mar 24, 2022
Record last updated
Jul 13, 2026
Fax
(215) 662-3953
Medicare enrollment
Enrolled (PECOS I20260604002028); may accept Medicare assignment
Medical or professional school
Virginia Tech Carilion School Of Medicine, 2022
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 3400 Spruce St

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

  1. Megan Abbott, CRNPNurse Practitioner1396771689
  2. Michael Abboud, MDEmergency Medicine Physician1962820852
  3. Emily AbdelmessihPediatric Pharmacist1891612560
  4. Mohammed AbdullahStudent in an Organized Health Care Education/Training Program1013595495
  5. Amin Abedini, MDStudent in an Organized Health Care Education/Training Program1912609017
  6. Farid Aboharb, MD, PHDStudent in an Organized Health Care Education/Training Program1295595973

Verify William Robert Reis 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 MD486300
    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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87% fewer Medicare Part D claims than the average emergency medicine physician in 2024

30 Medicare Part D claims for 23 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. William Reis30
  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.

William Robert Reis among 3,911 emergency medicine physician records in Pennsylvania

William Robert Reis, 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 2022, is newer than 88% of them.

  • NPI issued2022 · 88% of these records are older, 8% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2022 · median 2013 among the 2,231 with a school on file
  • Record last updated2026 · 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).

1,006 emergency medicine physician records list a practice address in Philadelphia

They are 1,006 of the 42,849 NPPES records with a practice address in Philadelphia, and 3,911 emergency medicine physician records in Pennsylvania.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. William Baxt, MDPhiladelphia, PA 191041477592970
  2. Aaron Chen, MDPhiladelphia, PA 191041871533455
  3. Elizabeth Datner, MDPhiladelphia, PA 191041487601365
  4. Francis De Roos, MDPhiladelphia, PA 191041285681148
  5. Anthony Dean, MDPhiladelphia, PA 191041508805318
  6. Edward Dickinson, MDPhiladelphia, PA 191041003855529
  7. C MechemPhiladelphia, PA 191041548200538
  8. Zachary Meisel, MDPhiladelphia, PA 191041013919935

Common questions

What is William Robert Reis, MD's NPI number?

William Robert Reis, MD's National Provider Identifier (NPI) is 1053061903, issued on Mar 24, 2022. An NPI identifies a provider in billing; it is not a license.

Where is William Robert Reis, MD located?

The NPPES record lists a practice address at 3400 Spruce St, Philadelphia, PA, 19104. Phone: (215) 662-6698. Providers update this record themselves, so call before visiting.

How can I verify William Robert Reis, MD's license?

NPPES lists Pennsylvania license number MD486300, 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 William Robert Reis, MD prescribe under Medicare Part D?

In 2024, William Robert Reis, MD had 30 Medicare Part D claims for 23 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.