Michael J. Stevens, D.O.
Family Medicine Physician · Portsmouth, NH
Michael J. Stevens, D.O. is a family medicine physician with a practice address in Portsmouth, New Hampshire, and NPI 1659415859, issued on Feb 19, 2007. Check the license (New Hampshire 12920, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Michael J. Stevens
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 12920 NH
Self-reported in NPPES; status is on the state search - Practice location
- 605 Lafayette RD, Portsmouth, NH 03801
- Phone
- (603) 658-2344
- Enumerated
- Feb 19, 2007
- Record last updated
- Oct 16, 2025
- Fax
- (603) 658-2355
- Medicaid ID
- 3076159 NH
- Medicare enrollment
- Enrolled (PECOS I20051101000687); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Osteopathic Medicine, 2000
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 816 in New Hampshire → Look up another NPI →
Also registered at 605 Lafayette RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Benjamin GerstenPhysician Assistant1154895951
- Abigail Hughes, FNPFamily Nurse Practitioner1457178543
- Marcy Schultenover, ODOptometrist1548357999
Verify Michael J. Stevens in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 12920Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% more Medicare Part D claims than the average family medicine physician in 2024
4,886 Medicare Part D claims for 558 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. 42 claims were for opioids.
Most prescribed
- Atorvastatin Calcium426 claims
- Amlodipine Besylate338 claims
- Lisinopril253 claims
- Hydrochlorothiazide205 claims
- Valsartan192 claims
- Losartan Potassium187 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): 83.6 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).
Bills Medicare through one group practice
- Core Physicians LLCPortsmouth, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael J. Stevens among 816 family medicine physician records in New Hampshire
Michael J. Stevens, D.O. is one of 816 family medicine physician records with a practice address in New Hampshire. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 57% of them.
- NPI issued2007 · 57% of these records are older, 36% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2000 · median 2003 among the 498 with a school on file
- Record last updated2025 · 62% 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 New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
36 family medicine physician records list a practice address in Portsmouth
They are 36 of the 1,860 NPPES records with a practice address in Portsmouth, and 816 family medicine physician records in New Hampshire.
All 816 in New Hampshire → Every provider in Portsmouth → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Keenan Al-Hojerry, MDPortsmouth, NH 038011063468981
- Mark Ballentyne, MDPortsmouth, NH 038011669404661
- David Gagnon, MDPortsmouth, NH 038011831145259
- Jennifer Koop, MDPortsmouth, NH 038011699769372
- George Kousaie, MDPortsmouth, NH 038011548263437
- Susan Krolewski, MDPortsmouth, NH 038011467406710
- Kenneth Lajoie, DOPortsmouth, NH 038011730142175
- M. Lauter, M.D.Portsmouth, NH 038011366544819
Common questions
What is Michael J. Stevens, D.O.'s NPI number?
Michael J. Stevens, D.O.'s National Provider Identifier (NPI) is 1659415859, issued on Feb 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Michael J. Stevens, D.O. located?
The NPPES record lists a practice address at 605 Lafayette RD, Portsmouth, NH, 03801. Phone: (603) 658-2344. Providers update this record themselves, so call before visiting.
How can I verify Michael J. Stevens, D.O.'s license?
NPPES lists New Hampshire license number 12920, 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 Michael J. Stevens, D.O. prescribe under Medicare Part D?
In 2024, Michael J. Stevens, D.O. had 4,886 Medicare Part D claims for 558 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Michael J. Stevens, D.O.'s MIPS final score?
The 2023 MIPS final score is 83.6 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.