Mark D. Beyer, D.O.
Emergency Medicine Physician · Muncy, PA
Mark D. Beyer, D.O. is an emergency medicine physician with a practice address in Muncy, Pennsylvania, and NPI 1568510519, issued on Jan 8, 2007. Check the license (Pennsylvania OS-006937-L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Mark D. Beyer
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- OS-006937-L PA
Self-reported in NPPES; status is on the state search - Practice location
- 215 E Water St, Muncy, PA 17756
- Phone
- (570) 546-4201
- Enumerated
- Jan 8, 2007
- Record last updated
- Dec 5, 2025
- Medicare enrollment
- Enrolled (PECOS I20041012000090); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 1988
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,911 in Pennsylvania → Look up another NPI →
Also registered at 215 E Water St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark D. Beyer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS-006937-LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average emergency medicine physician in 2024
137 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. 18 claims were for opioids.
Most prescribed
- Cephalexin33 claims
- Prednisone20 claims
- Amoxicillin-Clavulanate Potass12 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.
Industry payments in 2024: $36.47
2 payments; by number, the most common kind was food and beverage; the largest payer was Sun Pharmaceutical Industries Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Susquehanna Physician ServicesWilliamsport, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark D. Beyer among 3,911 emergency medicine physician records in Pennsylvania
Mark D. Beyer, D.O. 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 2007, is newer than 31% of them.
- NPI issued2007 · 31% of these records are older, 62% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1988 · median 2013 among the 2,231 with a school on file
- Record last updated2025 · 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).
3 emergency medicine physician records list a practice address in Muncy
They are 3 of the 159 NPPES records with a practice address in Muncy, and 3,911 emergency medicine physician records in Pennsylvania.
All 3,911 in Pennsylvania → Every provider in Muncy → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- John Bernett, M.D.Muncy, PA 177561003234378
- Joseph Lexon, MDMuncy, PA 177561629024278
- Alan Edwards, MDRenovo, PA 177641124003157
- Toni Marcheskie, MDRenovo, PA 177641689944951
- James Sweetland, M.D.Renovo, PA 177641881665958
- David Gingrich, MDLock Haven, PA 177451881749448
- Mistraine Durand-Douglas, D.O.Jersey Shore, PA 177401184895708
- Hosny Mikhail, MDJersey Shore, PA 177401578514501
Common questions
What is Mark D. Beyer, D.O.'s NPI number?
Mark D. Beyer, D.O.'s National Provider Identifier (NPI) is 1568510519, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark D. Beyer, D.O. located?
The NPPES record lists a practice address at 215 E Water St, Muncy, PA, 17756. Phone: (570) 546-4201. Providers update this record themselves, so call before visiting.
How can I verify Mark D. Beyer, D.O.'s license?
NPPES lists Pennsylvania license number OS-006937-L, 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 Mark D. Beyer, D.O. prescribe under Medicare Part D?
In 2024, Mark D. Beyer, D.O. had 137 Medicare Part D claims for 107 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.