Mark Edward Folk, D.O.
Family Medicine Physician · Schaefferstown, PA
Mark Edward Folk, D.O. is a family medicine physician with a practice address in Schaefferstown, Pennsylvania, and NPI 1528060001, issued on Aug 15, 2005. Check the license (Pennsylvania OS006270L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Mark Edward Folk
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- OS006270L PA
Self-reported in NPPES; status is on the state search - Practice location
- 2496 Stiegel Pike, Schaefferstown, PA 17088
- Phone
- (717) 949-2777
- Enumerated
- Aug 15, 2005
- Record last updated
- Sep 20, 2023
- Fax
- (717) 949-6925
- Medicaid ID
- 001193547 PA
- Medicare enrollment
- Enrolled (PECOS I20040520000578); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 1986
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 7,483 in Pennsylvania → Look up another NPI →
Also registered at 2496 Stiegel Pike
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anita Darpino, D.O.Family Medicine Physician1023010600
- Steven Shay, D.O.Family Medicine Physician1629070222
- Meghann Wenger, PA-CMedical Physician Assistant1144518028
Verify Mark Edward Folk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS006270LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average family medicine physician in 2024
7,147 Medicare Part D claims for 603 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 140 claims were for opioids.
Most prescribed
- Atorvastatin Calcium328 claims
- Lisinopril311 claims
- Amlodipine Besylate289 claims
- Losartan Potassium284 claims
- Hydrochlorothiazide209 claims
- Pantoprazole Sodium191 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 2 group practices
- Phoenix Rehabilitation And Health Services IncCranberry Twp, PA
- Wellspan Medical GroupSchaefferstown, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Edward Folk among 7,483 family medicine physician records in Pennsylvania
Mark Edward Folk, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1986 · median 2005 among the 4,529 with a school on file
- Record last updated2023 · 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).
Family Medicine Physician providers in Pennsylvania
There are 7,483 family medicine physician records in Pennsylvania.
All 7,483 in Pennsylvania → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Anita Darpino, D.O.Schaefferstown, PA 170881023010600
- Steven Shay, D.O.Schaefferstown, PA 170881629070222
- Richard Bisbing, M.D.Shermans Dale, PA 170901134139082
- Steven Creps, M.D.Shermans Dale, PA 170901669482527
- Gene Reisinger, DORichfield, PA 170861356380109
- Lori Trostle, M.D.Shermans Dale, PA 170901427068394
- Elizabeth Wenger, CRNPRichfield, PA 170861760207260
- Eric Fowler, MDReedsville, PA 170841740217611
Common questions
What is Mark Edward Folk, D.O.'s NPI number?
Mark Edward Folk, D.O.'s National Provider Identifier (NPI) is 1528060001, issued on Aug 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Edward Folk, D.O. located?
The NPPES record lists a practice address at 2496 Stiegel Pike, Schaefferstown, PA, 17088. Phone: (717) 949-2777. Providers update this record themselves, so call before visiting.
How can I verify Mark Edward Folk, D.O.'s license?
NPPES lists Pennsylvania license number OS006270L, 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 Edward Folk, D.O. prescribe under Medicare Part D?
In 2024, Mark Edward Folk, D.O. had 7,147 Medicare Part D claims for 603 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.