NPPES file of Aug 9, 2026

Gregory S. Lasala, MD

Emergency Medicine Physician · Hershey, PA

Gregory S. Lasala, MD is an emergency medicine physician with a practice address in Hershey, Pennsylvania, and NPI 1942521927, issued on Jun 14, 2010. Check the license (Pennsylvania MD449230, 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
1942521927
Name
Gregory S. Lasala
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
MD449230 PA
Self-reported in NPPES; status is on the state search
Practice location
500 University Dr, Hershey, PA 17033
Phone
(717) 531-8521
Enumerated
Jun 14, 2010
Record last updated
Nov 5, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20150721003225); accepts Medicare assignment
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 500 University Dr

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

  1. Victor Abarca, CRNACertified Registered Nurse Anesthetist1003575853
  2. Aiza Abbas, MDStudent in an Organized Health Care Education/Training Program1164312500
  3. Fatemeh Abbasi, MDPulmonary Disease Physician1750878625
  4. Andrea Abbe, LDNRegistered Dietitian1366623795
  5. Mahdi Abdallah, MDStudent in an Organized Health Care Education/Training Program1497457360
  6. Ashraf Abdelhalim, MDAnesthesiology Physician1356931729

Verify Gregory S. Lasala 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 MD449230
    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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52% more Medicare Part D claims than the average emergency medicine physician in 2024

343 Medicare Part D claims for 219 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 40 claims were for opioids.

  1. Gregory Lasala343
  2. Specialty average226

Most prescribed

  1. Ibuprofen30 claims
  2. Hydrocodone-Acetaminophen27 claims
  3. Ondansetron Odt25 claims
  4. Prednisone17 claims
  5. Cephalexin16 claims
  6. Tizanidine Hcl16 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.

Bills Medicare through one group practice

  1. Emergency Medicine Specialists OF Orange CountyOrange, CA

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

Gregory S. Lasala among 3,911 emergency medicine physician records in Pennsylvania

Gregory S. Lasala, 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 2010, is newer than 46% of them.

  • NPI issued2010 · 46% of these records are older, 51% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2010 · median 2013 among the 2,231 with a school on file
  • Record last updated2013 · 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).

104 emergency medicine physician records list a practice address in Hershey

They are 104 of the 3,972 NPPES records with a practice address in Hershey, and 3,911 emergency medicine physician records in Pennsylvania.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. J Allen, DOHershey, PA 170331760440762
  2. Daniel Ammons, MDHershey, PA 170331881652006
  3. Christopher Deflitch, MDHershey, PA 170331134187354
  4. Michelle Fischer, M.D., M.P.H.Hershey, PA 170331134193881
  5. Manuel Hernandez, MDHershey, PA 170331134109408
  6. Sandra Herr, MDHershey, PA 170331306821467
  7. Cecil Holliman, MDHershey, PA 170331881652873
  8. Lawrence Kass, MDHershey, PA 170331487612602

Common questions

What is Gregory S. Lasala, MD's NPI number?

Gregory S. Lasala, MD's National Provider Identifier (NPI) is 1942521927, issued on Jun 14, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Gregory S. Lasala, MD located?

The NPPES record lists a practice address at 500 University Dr, Hershey, PA, 17033. Phone: (717) 531-8521. Providers update this record themselves, so call before visiting.

How can I verify Gregory S. Lasala, MD's license?

NPPES lists Pennsylvania license number MD449230, 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 Gregory S. Lasala, MD prescribe under Medicare Part D?

In 2024, Gregory S. Lasala, MD had 343 Medicare Part D claims for 219 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.