NPPES file of Aug 9, 2026

Leslie Anne Stewart, MD

Internal Medicine Physician · Philadelphia, PA

Leslie Anne Stewart, MD is an internal medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1538452495, issued on May 25, 2011. Check the license (Pennsylvania MD451280, 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
1538452495
Name
Leslie Anne Stewart
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD451280 PA
Self-reported in NPPES; status is on the state search
Practice location
3400 Spruce Street, Philadelphia, PA 19104
Phone
(215) 662-2200
Enumerated
May 25, 2011
Record last updated
Aug 7, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20181009000251); accepts Medicare assignment
Medical or professional school
Stanford University School Of Medicine, 2011
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 Street

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

  1. Stephanie Abbuhl, MDEmergency Medicine Physician1649215195
  2. Shahrzad Abdollahi, M.D.Rheumatology Physician1518494178
  3. Sarah Abdulla, MDVascular & Interventional Radiology Physician1427342336
  4. Alice Abernathy, MDObstetrics & Gynecology Physician1740711498
  5. Mariam Aboian, M.D., PH.D.Diagnostic Radiology Physician1356669386
  6. Samir Abu Gazala, M.D.Surgery Physician1750708251

Verify Leslie Anne Stewart 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 MD451280
    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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61% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,241 Medicare Part D claims for 95 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Leslie Stewart1,241
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium149 claims
  2. Lisinopril91 claims
  3. Losartan Potassium56 claims
  4. Synthroid56 claims
  5. Amlodipine Besylate48 claims
  6. Lantus Solostar45 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 practice group's MIPS final score for 2023 (Medicare payment program): 84.2 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score64.9
  2. Costout of 100 · 30%67.6
  3. Promoting interoperabilityout of 100 · 25%98.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Bills Medicare through one group practice

  1. Dhhs Phs Naihs Chinle Comprehensive Health Care FacilityChinle, AZ

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

Leslie Anne Stewart among 7,300 internal medicine physician records in Pennsylvania

Leslie Anne Stewart, MD is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 52% of them.

  • NPI issued2011 · 52% of these records are older, 45% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2011 · median 2008 among the 4,208 with a school on file
  • Record last updated2014 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,855 internal medicine physician records list a practice address in Philadelphia

They are 1,855 of the 42,849 NPPES records with a practice address in Philadelphia, and 7,300 internal medicine physician records in Pennsylvania.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Amy Behrman, MDPhiladelphia, PA 191041851331870
  2. Martin Bohnenkamp, MDPhiladelphia, PA 191041770528259
  3. John Bruza, MDPhiladelphia, PA 191041093758310
  4. Jill Clemmer, MDPhiladelphia, PA 191041477594562
  5. John Flamma, MDPhiladelphia, PA 191041477500296
  6. Kevin Fosnocht, MDPhiladelphia, PA 191041003842709
  7. William Gilhool, DOPhiladelphia, PA 191041982606919
  8. Bruce Kinosian, MDPhiladelphia, PA 191041871536177

Common questions

What is Leslie Anne Stewart, MD's NPI number?

Leslie Anne Stewart, MD's National Provider Identifier (NPI) is 1538452495, issued on May 25, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Leslie Anne Stewart, MD located?

The NPPES record lists a practice address at 3400 Spruce Street, Philadelphia, PA, 19104. Phone: (215) 662-2200. Providers update this record themselves, so call before visiting.

How can I verify Leslie Anne Stewart, MD's license?

NPPES lists Pennsylvania license number MD451280, 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 Leslie Anne Stewart, MD prescribe under Medicare Part D?

In 2024, Leslie Anne Stewart, MD had 1,241 Medicare Part D claims for 95 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Leslie Anne Stewart, MD's MIPS final score?

The 2023 MIPS final score is 84.2 of 100, reported for the practice group. 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.