Stephen Ross Barter, M.D.
Family Medicine Physician · Naples, ME
Stephen Ross Barter, M.D. is a family medicine physician with a practice address in Naples, Maine, and NPI 1689779092, issued on Sep 13, 2006. Check the license (Maine 11337, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Stephen Ross Barter
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 11337 ME
Self-reported in NPPES; status is on the state search - Practice location
- 4 Meserve Street, Naples, ME 04055
- Phone
- (207) 693-3912
- Enumerated
- Sep 13, 2006
- Record last updated
- Jun 2, 2025
- Fax
- (207) 693-3453
- Medicaid ID
- 203770000 ME
- Medicare enrollment
- Enrolled (PECOS I20050418000372); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 1981
- Entity
- Type 1 · individual
Verify Stephen Ross Barter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license 11337Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average family medicine physician in 2024
8,542 Medicare Part D claims for 563 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 339 claims were for opioids.
Most prescribed
- Atorvastatin Calcium595 claims
- Lisinopril347 claims
- Levothyroxine Sodium282 claims
- Losartan Potassium256 claims
- Amlodipine Besylate255 claims
- Omeprazole220 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 practice group's MIPS final score for 2023 (Medicare payment program): 79.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $998.87
54 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
1 family medicine physician records list a practice address in Naples
They are 1 of the 28 NPPES records with a practice address in Naples, and 1,172 family medicine physician records in Maine.
Other family medicine physician records in Maine
- Jeffrey Aalberg, MDFalmouth, ME1669400222
- Elizabeth Abbas, DOFarmington, ME1932588100
- Robert Abrams, M.D.Lubec, ME1720067010
- Andrea Abrell, DOAugusta, ME1558525188
- Justine Achille, MDGorham, ME1962962324
- Katie Adams, MDLincoln, ME1154764975
- Thomas Adams, MDSouthwest Harbor, ME1851331565
- Rebecca Adamson, MDLewiston, ME1912313982
- Constance Adler, M.D., F.A.A.F.P.Farmington, ME1487689675
- Devesh Agarwal, M.D.Lincoln, ME1710116876
Common questions
What is Stephen Ross Barter, M.D.'s NPI number?
Stephen Ross Barter, M.D.'s National Provider Identifier (NPI) is 1689779092, issued on Sep 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Ross Barter, M.D. located?
The NPPES record lists a practice address at 4 Meserve Street, Naples, ME, 04055. Phone: (207) 693-3912. Providers update this record themselves, so call before visiting.
How can I verify Stephen Ross Barter, M.D.'s license?
NPPES lists Maine license number 11337, 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 Stephen Ross Barter, M.D. prescribe under Medicare Part D?
In 2024, Stephen Ross Barter, M.D. had 8,542 Medicare Part D claims for 563 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Stephen Ross Barter, M.D.'s MIPS final score?
The 2023 MIPS final score is 79.4 of 100, reported for the practice group. 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.