Mark Robert Harris, DO
Family Medicine Physician · Kemblesville, PA
Mark Robert Harris, DO is a family medicine physician with a practice address in Kemblesville, Pennsylvania, and NPI 1063513034, issued on Sep 25, 2006. Check the license (Pennsylvania OS007591L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Mark Robert Harris
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- OS007591L PA
Self-reported in NPPES; status is on the state search - Practice location
- 20 Mcmaster Boulevard, Kemblesville, PA 19347
- Phone
- (610) 255-4466
- Enumerated
- Sep 25, 2006
- Record last updated
- Jul 22, 2026
- Fax
- (610) 255-4479
- Medicare enrollment
- Enrolled (PECOS I20260303002208); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 1990
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 7,483 in Pennsylvania → Look up another NPI →
Also registered at 20 Mcmaster Boulevard
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Hoffman, MDFamily Medicine Physician1043309289
- Kelsey McCormickPhysician Assistant1992189310
Verify Mark Robert Harris in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS007591LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average family medicine physician in 2024
1,517 Medicare Part D claims for 181 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Hydroxyzine Pamoate200 claims
- Cyclobenzaprine Hcl198 claims
- Trazodone Hcl183 claims
- Clonidine Hcl108 claims
- Gabapentin64 claims
- Quetiapine Fumarate57 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
- Total Care Physicians, P.A.Newark, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Robert Harris among 7,483 family medicine physician records in Pennsylvania
Mark Robert Harris, DO 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
- Graduated1990 · median 2005 among the 4,529 with a school on file
- Record last updated2026 · 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
- David Hoffman, MDKemblesville, PA 193471043309289
- Martha Brinsfield, MDKennett Square, PA 193481528004710
- Peter Fabulian, DOKennett Square, PA 193481023184835
- Megan Gaskill, MDKennett Square, PA 193481962679183
- Steven Ginsburg, DOKennett Square, PA 193481306926837
- Joseph Greco, MDKennett Square, PA 193481083684252
- Richard Haug, M.D.Kennett Square, PA 193481932229325
- Cheryl Hlavac, MDKennett Square, PA 193481346256963
Common questions
What is Mark Robert Harris, DO's NPI number?
Mark Robert Harris, DO's National Provider Identifier (NPI) is 1063513034, issued on Sep 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Robert Harris, DO located?
The NPPES record lists a practice address at 20 Mcmaster Boulevard, Kemblesville, PA, 19347. Phone: (610) 255-4466. Providers update this record themselves, so call before visiting.
How can I verify Mark Robert Harris, DO's license?
NPPES lists Pennsylvania license number OS007591L, 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 Robert Harris, DO prescribe under Medicare Part D?
In 2024, Mark Robert Harris, DO had 1,517 Medicare Part D claims for 181 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.