Mark M. Grohman, D.O.
Hospitalist Physician · Biddeford, ME
Mark M. Grohman, D.O. is a hospitalist physician with a practice address in Biddeford, Maine, and NPI 1538393541, issued on May 5, 2009. Check the license (Maine DO2294, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark M. Grohman
- Credential
- D.O.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- DO2294 ME
2294 ME
Self-reported in NPPES; status is on the state search - Practice location
- One Medical Center Drive, Biddeford, ME 04005
- Phone
- (207) 283-7000
- Enumerated
- May 5, 2009
- Record last updated
- Sep 6, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (207) 283-7275
- Medicare enrollment
- Enrolled (PECOS I20120808000547); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 2009
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 245 in Maine → Look up another NPI →
Also registered at One Medical Center Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- John Kurucz, D.O.Emergency Medicine Physician1548417397
- James Longstaff, M.D.Aerospace Medicine Physician1366412488
- Daniel Mazza, D.O.Family Medicine Physician1124102389
- Jessica Stevens, M.D.Emergency Medicine Physician1184877839
- Kristy Surprise, ANPAdult Health Nurse Practitioner1952559908
Verify Mark M. Grohman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license DO2294Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average hospitalist physician in 2024
38 Medicare Part D claims for 22 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
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
- Mercy HospitalPortland, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark M. Grohman among 245 hospitalist physician records in Maine
Mark M. Grohman, D.O. is one of 245 hospitalist physician records with a practice address in Maine. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 40% of them.
- NPI issued2009 · 40% of these records are older, 57% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 84% of these records are
- Graduated2009 · median 2012 among the 206 with a school on file
- Record last updated2013 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 hospitalist physician records list a practice address in Biddeford
They are 18 of the 905 NPPES records with a practice address in Biddeford, and 245 hospitalist physician records in Maine.
All 245 in Maine → Every provider in Biddeford → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Adedeji Ademiluyi, MDBiddeford, ME 040051467013268
- Brendan Allison, DOBiddeford, ME 040051679034136
- Anthony Bambara, M.D.Biddeford, ME 040051104205293
- William Cullen, MDBiddeford, ME 040051679531552
- Frank Green, DOBiddeford, ME 040051316024862
- Gregory Leach, MDBiddeford, ME 040051538246095
- Bonnie Patrick, MDBiddeford, ME 040051992856249
- Jenna Pearson, D.O.Biddeford, ME 040051528417375
Common questions
What is Mark M. Grohman, D.O.'s NPI number?
Mark M. Grohman, D.O.'s National Provider Identifier (NPI) is 1538393541, issued on May 5, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Mark M. Grohman, D.O. located?
The NPPES record lists a practice address at One Medical Center Drive, Biddeford, ME, 04005. Phone: (207) 283-7000. Providers update this record themselves, so call before visiting.
How can I verify Mark M. Grohman, D.O.'s license?
NPPES lists Maine license number DO2294, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark M. Grohman, D.O. prescribe under Medicare Part D?
In 2024, Mark M. Grohman, D.O. had 38 Medicare Part D claims for 22 beneficiaries; the average among hospitalist physician prescribers was 521. 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.