Greg S. Swartzentruber, MD
Medical Toxicology (Emergency Medicine) Physician · Harrisburg, PA
Greg S. Swartzentruber, MD is a medical toxicology (emergency medicine) physician with a practice address in Harrisburg, Pennsylvania, and NPI 1740419498, issued on Jul 2, 2009. Check the license (Pennsylvania MD447664, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Greg S. Swartzentruber
- Credential
- MD
- Primary taxonomy
- Medical Toxicology (Emergency Medicine) Physician 207PT0002X
- License numbers
- MD447664 PA
LL31794 SC
Self-reported in NPPES; status is on the state search - Practice location
- 111 S Front St, Harrisburg, PA 17101
- Phone
- (717) 988-0000
- Enumerated
- Jul 2, 2009
- Record last updated
- Mar 30, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (717) 782-5716
- Medicaid ID
- 102834739 PA
- Medicare enrollment
- Enrolled (PECOS I20130708000279); accepts Medicare assignment
- Medical or professional school
- Pennsylvania State University College Of Medicine, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical toxicology (emergency medicine) physician records → All 19 in Pennsylvania → Look up another NPI →
Also registered at 111 S Front St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Abraham, MDInternal Medicine Physician1013538115
- Astha AcharyaStudent in an Organized Health Care Education/Training Program1457240673
- Adrienne Ackerman, DOEmergency Medicine Physician1164835609
- Carson Adams, M.D.Emergency Medicine Physician1093120347
- Guy Agostinelli, DOStudent in an Organized Health Care Education/Training Program1053103473
- Usman Enesi Ahmed, MDStudent in an Organized Health Care Education/Training Program1053108571
Verify Greg S. Swartzentruber in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD447664Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.1 times the Medicare Part D claims of the average medical toxicology (emergency medicine) physician in 2024
428 Medicare Part D claims for 98 beneficiaries, against an average of 138 among the 103 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Buprenorphine-Naloxone151 claims
- Sublocade39 claims
- Vivitrol20 claims
- Buspirone Hcl18 claims
- Mirtazapine18 claims
- Prazosin Hcl18 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): 82.5 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Pinnacle Health Emergency Department Services, LLCHarrisburg, PA
- Pinnacle Health Medical ServicesHarrisburg, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Greg S. Swartzentruber among 19 medical toxicology (emergency medicine) physician records in Pennsylvania
Greg S. Swartzentruber, MD is one of 19 medical toxicology (emergency medicine) physician records with a practice address in Pennsylvania. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 26% of them.
- NPI issued2009 · 26% of these records are older, 63% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2009 · median 2012 among the 12 with a school on file
- Record last updated2017 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PT0002X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Toxicology (Emergency Medicine) Physician providers in Pennsylvania
There are 19 medical toxicology (emergency medicine) physician records in Pennsylvania.
All 19 in Pennsylvania → Every provider in Harrisburg → Medical Toxicology (Emergency Medicine) Physician nationwide →
The 8 medical toxicology (emergency medicine) physician records with the nearest ZIP codes
- David Haggerty, MDHarrisburg, PA 171011770746703
- Ronald Kirschner, M.D.Harrisburg, PA 171051699839654
- Keith Burkhart, MDHershey, PA 170331992000541
- David Lee, M.D.York, PA 174031144324450
- Bryan Moles, D.O.Meadville, PA 163351639312846
- Robert Cannon, DOBethlehem, PA 180151497739221
- Andrew Sheen, DOBethlehem, PA 180151538546270
- Alexandra Amaducci, DOBethlehem, PA 180171821475567
Common questions
What is Greg S. Swartzentruber, MD's NPI number?
Greg S. Swartzentruber, MD's National Provider Identifier (NPI) is 1740419498, issued on Jul 2, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Greg S. Swartzentruber, MD located?
The NPPES record lists a practice address at 111 S Front St, Harrisburg, PA, 17101. Phone: (717) 988-0000. Providers update this record themselves, so call before visiting.
How can I verify Greg S. Swartzentruber, MD's license?
NPPES lists Pennsylvania license number MD447664, 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 Greg S. Swartzentruber, MD prescribe under Medicare Part D?
In 2024, Greg S. Swartzentruber, MD had 428 Medicare Part D claims for 98 beneficiaries; the average among medical toxicology (emergency medicine) physician prescribers was 138. Part D covers Medicare prescriptions only.
What is Greg S. Swartzentruber, MD's MIPS final score?
The 2023 MIPS final score is 82.5 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.