Mark Frederick Cohen, D.O.
Family Medicine Physician · Lancaster, PA
Mark Frederick Cohen, D.O. is a family medicine physician with a practice address in Lancaster, Pennsylvania, and NPI 1164434015, issued on Aug 12, 2006. Check the license (Pennsylvania OS012957, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Mark Frederick Cohen
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- OS012957 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1950 Marietta Ave, Lancaster, PA 17603
- Phone
- (717) 392-7986
- Enumerated
- Aug 12, 2006
- Record last updated
- Jan 13, 2025
- Fax
- (717) 295-7271
- Medicare enrollment
- Enrolled (PECOS I20081006000471); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 2003
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 7,483 in Pennsylvania → Look up another NPI →
Also registered at 1950 Marietta Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Christopher Porter, D.O.Family Medicine Physician1598831760
- Brandon Roda, CRNPNurse Practitioner1932502549
Verify Mark Frederick Cohen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS012957Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7.2 times the Medicare Part D claims of the average family medicine physician in 2024
25,605 Medicare Part D claims for 325 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 172 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,395 claims
- Lisinopril992 claims
- Gabapentin942 claims
- Pantoprazole Sodium920 claims
- Amlodipine Besylate769 claims
- Carvedilol760 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 MIPS final score for 2023 (Medicare payment program): 18.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,521.55
80 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 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
- Family Practice Center PCMiddleburg, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Frederick Cohen among 7,483 family medicine physician records in Pennsylvania
Mark Frederick Cohen, D.O. is one of 7,483 family medicine physician records with a practice address in Pennsylvania. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2003 · median 2005 among the 4,529 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
213 family medicine physician records list a practice address in Lancaster
They are 213 of the 5,378 NPPES records with a practice address in Lancaster, and 7,483 family medicine physician records in Pennsylvania.
All 7,483 in Pennsylvania → Every provider in Lancaster → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- William Bakken, M.D.Lancaster, PA 176031447247135
- Anne-Marie Derrico, MDLancaster, PA 176031982658050
- William Fife, MDLancaster, PA 176031124070933
- Gary Gehman, M.D.Lancaster, PA 176031326035015
- Althea Keener, MDLancaster, PA 176031205872330
- David Ling, M.D.Lancaster, PA 176031982697272
- Nunzio Mastropietro, M.D.Lancaster, PA 176031326048794
- Thomas Mextorf, D.O.Lancaster, PA 176031194703629
Common questions
What is Mark Frederick Cohen, D.O.'s NPI number?
Mark Frederick Cohen, D.O.'s National Provider Identifier (NPI) is 1164434015, issued on Aug 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Frederick Cohen, D.O. located?
The NPPES record lists a practice address at 1950 Marietta Ave, Lancaster, PA, 17603. Phone: (717) 392-7986. Providers update this record themselves, so call before visiting.
How can I verify Mark Frederick Cohen, D.O.'s license?
NPPES lists Pennsylvania license number OS012957, 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 Frederick Cohen, D.O. prescribe under Medicare Part D?
In 2024, Mark Frederick Cohen, D.O. had 25,605 Medicare Part D claims for 325 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Mark Frederick Cohen, D.O.'s MIPS final score?
The 2023 MIPS final score is 18.4 of 100. 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.