John Terrance Buchanan, M.D.
Family Medicine Physician · Nashua, NH
John Terrance Buchanan, M.D. is a family medicine physician with a practice address in Nashua, New Hampshire, and NPI 1437244720, issued on Oct 4, 2006. Check the license (New Hampshire 10321, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- John Terrance Buchanan
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 10321 NH
Self-reported in NPPES; status is on the state search - Practice location
- 116 Spit Brook RD, Nashua, NH 03062
- Phone
- (603) 888-5573
- Enumerated
- Oct 4, 2006
- Record last updated
- Dec 17, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (603) 891-6910
- Medicaid ID
- 30011484 NH
- Medicare enrollment
- Enrolled (PECOS I20031204000765); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 1995
- 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 116 Spit Brook RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michelle CooneyFamily Nurse Practitioner1154905180
- Patrick Duff, MDPediatrics Physician1659876332
- Danielle Hodorowski, APRNFamily Nurse Practitioner1457969677
- Lila Monahan, MDPediatrics Physician1508941477
- Maurene Mugariri, FNPFamily Nurse Practitioner1083298798
- Mark Posnick, DOFamily Medicine Physician1194218834
Verify John Terrance Buchanan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 10321Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% more Medicare Part D claims than the average family medicine physician in 2024
4,797 Medicare Part D claims for 501 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 322 claims were for opioids.
Most prescribed
- Atorvastatin Calcium345 claims
- Amlodipine Besylate243 claims
- Lisinopril198 claims
- Rosuvastatin Calcium192 claims
- Losartan Potassium153 claims
- Levothyroxine Sodium152 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): 93.4 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
- Foundation Medical Partners IncNashua, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Terrance Buchanan among 816 family medicine physician records in New Hampshire
John Terrance Buchanan, M.D. 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 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 43% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1995 · median 2003 among the 498 with a school on file
- Record last updated2015 · 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).
41 family medicine physician records list a practice address in Nashua
They are 41 of the 3,140 NPPES records with a practice address in Nashua, and 816 family medicine physician records in New Hampshire.
All 816 in New Hampshire → Every provider in Nashua → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Krista Johnson, M.D.Nashua, NH 030621699751214
- Debra Margolis, DONashua, NH 030621912093824
- Mark Posnick, DONashua, NH 030621194218834
- Darla Thyng, MDNashua, NH 030621053332197
- Jonathan Thyng, MDNashua, NH 030621902820921
- Mitchell Young, M.D.Nashua, NH 030621770522880
- Alice YuNashua, NH 030621841584018
- Peter Barley, MDNashua, NH 030631336163682
Common questions
What is John Terrance Buchanan, M.D.'s NPI number?
John Terrance Buchanan, M.D.'s National Provider Identifier (NPI) is 1437244720, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Terrance Buchanan, M.D. located?
The NPPES record lists a practice address at 116 Spit Brook RD, Nashua, NH, 03062. Phone: (603) 888-5573. Providers update this record themselves, so call before visiting.
How can I verify John Terrance Buchanan, M.D.'s license?
NPPES lists New Hampshire license number 10321, 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 John Terrance Buchanan, M.D. prescribe under Medicare Part D?
In 2024, John Terrance Buchanan, M.D. had 4,797 Medicare Part D claims for 501 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is John Terrance Buchanan, M.D.'s MIPS final score?
The 2023 MIPS final score is 93.4 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.