Mark J. Geppert, M.D.
Orthopaedic Surgery Physician · Somersworth, NH
Mark J. Geppert, M.D. is an orthopaedic surgery physician with a practice address in Somersworth, New Hampshire, and NPI 1134148604, issued on Jul 18, 2006. Check the license (New Hampshire 8613, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark J. Geppert
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- 8613 NH
Self-reported in NPPES; status is on the state search - Practice location
- 7 Marsh Brook Dr, Somersworth, NH 03878
- Phone
- (603) 742-2007
- Enumerated
- Jul 18, 2006
- Record last updated
- Sep 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (603) 749-4605
- Medicaid ID
- 3079299 NH
- Medicare enrollment
- Enrolled (PECOS I20051103000962); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1985
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 174 in New Hampshire → Look up another NPI →
Also registered at 7 Marsh Brook Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David AbbettPhysical Therapist1699828228
- Charles Blitzer, M.D.Orthopaedic Surgery Physician1780603258
- Lisa BurkeOccupational Therapist1306385323
- Sean CarpenterPhysical Therapist1417394479
- Shelby Cheever, PA-CPhysician Assistant1326642000
- Peter Dirksmeier, M.D.Orthopaedic Surgery of the Spine Physician1831124361
Verify Mark J. Geppert in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 8613Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
46 Medicare Part D claims for 29 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 16 claims were for opioids.
Most prescribed
- Cephalexin12 claims
- Sulfamethoxazole-Trimethoprim11 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
- Wentworth Douglass Physician CorporationSomersworth, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark J. Geppert among 174 orthopaedic surgery physician records in New Hampshire
Mark J. Geppert, M.D. is one of 174 orthopaedic surgery physician records with a practice address in New Hampshire. 78% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 39% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1985 · median 2002 among the 123 with a school on file
- Record last updated2018 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 orthopaedic surgery physician records list a practice address in Somersworth
They are 6 of the 333 NPPES records with a practice address in Somersworth, and 174 orthopaedic surgery physician records in New Hampshire.
All 174 in New Hampshire → Every provider in Somersworth → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Charles Blitzer, M.D.Somersworth, NH 038781780603258
- Guy Esposito, M.D.Somersworth, NH 038781245259712
- Joseph Konopka, MDSomersworth, NH 038781851612196
- William Oliver, MD, FRCSEDSomersworth, NH 038781396620621
- Ira Parsons, MDSomersworth, NH 038781689693152
- Thomas Barton, MDWolfeboro, NH 038941346291002
- George Costello, MDWolfeboro, NH 038941689625527
- Jeremy Hogan, MDWolfeboro, NH 038941205046992
Common questions
What is Mark J. Geppert, M.D.'s NPI number?
Mark J. Geppert, M.D.'s National Provider Identifier (NPI) is 1134148604, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark J. Geppert, M.D. located?
The NPPES record lists a practice address at 7 Marsh Brook Dr, Somersworth, NH, 03878. Phone: (603) 742-2007. Providers update this record themselves, so call before visiting.
How can I verify Mark J. Geppert, M.D.'s license?
NPPES lists New Hampshire license number 8613, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark J. Geppert, M.D. prescribe under Medicare Part D?
In 2024, Mark J. Geppert, M.D. had 46 Medicare Part D claims for 29 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. 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.