NPPES file of Aug 9, 2026

Leslie Crosby

Emergency Medicine Physician · Chester, PA

Leslie Crosby is an emergency medicine physician with a practice address in Chester, Pennsylvania, and NPI 1528629748, issued on Jun 27, 2019. Check the license (Pennsylvania MD476740, 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
1528629748
Name
Leslie Crosby
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
MD476740 PA
Self-reported in NPPES; status is on the state search
Practice location
1 Medical Center Blvd, Chester, PA 19013
Phone
(610) 447-6671
Enumerated
Jun 27, 2019
Record last updated
Jan 10, 2023
Medicare enrollment
Enrolled (PECOS I20220517002807); accepts Medicare assignment
Medical or professional school
Temple University School Of Medicine, 2019
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 1 Medical Center Blvd

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

  1. Dina AbdurahmanStudent in an Organized Health Care Education/Training Program1093243396
  2. Daniel AbrahamStudent in an Organized Health Care Education/Training Program1780371237
  3. Chaitanya Adiga, DPMStudent in an Organized Health Care Education/Training Program1881443158
  4. David Adler, PA-CSurgical Physician Assistant1669613782
  5. Nissar Ahmed, DOHospitalist Physician1881181139
  6. Syed AliEmergency Medicine Physician1306334727

Verify Leslie Crosby 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 MD476740
    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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45% fewer Medicare Part D claims than the average emergency medicine physician in 2024

124 Medicare Part D claims for 107 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Leslie Crosby124
  2. Specialty average226

Most prescribed

  1. Cephalexin26 claims
  2. Prednisone13 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): 81.2 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 score74.6
  2. Costout of 100 · 30%65.2
  3. Promoting interoperabilityout of 100 · 25%97.0
  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 2 group practices

  1. Phoenixville Clinic Company LLCPhoenixville, PA
  2. Pottstown Clinic Company LLCPottstown, PA

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

Leslie Crosby among 3,911 emergency medicine physician records in Pennsylvania

Leslie Crosby 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 2019, is newer than 75% of them.

  • NPI issued2019 · 75% of these records are older, 21% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2019 · median 2013 among the 2,231 with a school on file
  • Record last updated2023 · 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).

27 emergency medicine physician records list a practice address in Chester

They are 27 of the 1,115 NPPES records with a practice address in Chester, and 3,911 emergency medicine physician records in Pennsylvania.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Shannon Brown, M.D.Upland, PA 190131891747218
  2. Deanna Bulthuis, MDUpland, PA 190131982650362
  3. Lloyd Feigenbaum, MDUpland, PA 190131811943491
  4. Gregory Frattaroli, M.D.Chester, PA 190131164626552
  5. Steven Gable, DOUpland, PA 190131922055912
  6. Jeffrey George, MDUpland, PA 190131366403289
  7. Karen Greenberg, DOChester, PA 190131912041575
  8. Mark Harris, MDUpland, PA 190131629023668

Common questions

What is Leslie Crosby's NPI number?

Leslie Crosby's National Provider Identifier (NPI) is 1528629748, issued on Jun 27, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Leslie Crosby located?

The NPPES record lists a practice address at 1 Medical Center Blvd, Chester, PA, 19013. Phone: (610) 447-6671. Providers update this record themselves, so call before visiting.

How can I verify Leslie Crosby's license?

NPPES lists Pennsylvania license number MD476740, 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 Crosby prescribe under Medicare Part D?

In 2024, Leslie Crosby had 124 Medicare Part D claims for 107 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Leslie Crosby's MIPS final score?

The 2023 MIPS final score is 81.2 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.