J Gavin Muir, MD
Family Medicine Physician · Manchester, NH
J Gavin Muir, MD is a family medicine physician with a practice address in Manchester, New Hampshire, and NPI 1629071899, issued on May 23, 2005. Check the license (New Hampshire 10308, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- J Gavin Muir
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 10308 NH
Self-reported in NPPES; status is on the state search - Practice location
- 145 Hollis St, Manchester, NH 03101
- Phone
- (603) 626-9500
- Enumerated
- May 23, 2005
- Record last updated
- Aug 4, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (603) 626-0899
- Medicaid ID
- 30201968 NH
- Medicare enrollment
- Enrolled (PECOS I20050201000708); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 1995
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 816 in New Hampshire → Look up another NPI →
Also registered at 145 Hollis St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kaitlyn Bailey, PA-CPhysician Assistant1215798152
- Simone Bazile, PMHNPPsychiatric/Mental Health Nurse Practitioner1851110498
- Heather Bell, PA-CPhysician Assistant1487011326
- Melissa BerryClinical Social Worker1609454412
- Sandra Bryant, LDNNutritionist1215566088
Verify J Gavin Muir in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 10308Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average family medicine physician in 2024
2,777 Medicare Part D claims for 244 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. 180 claims were for opioids.
Most prescribed
- Metformin Hcl138 claims
- Atorvastatin Calcium137 claims
- Lisinopril131 claims
- Amlodipine Besylate90 claims
- Levothyroxine Sodium89 claims
- Gabapentin84 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
- Amoskeag HealthManchester, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
J Gavin Muir among 816 family medicine physician records in New Hampshire
J Gavin Muir, MD 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% 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 updated2008 · 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).
43 family medicine physician records list a practice address in Manchester
They are 43 of the 4,401 NPPES records with a practice address in Manchester, and 816 family medicine physician records in New Hampshire.
All 816 in New Hampshire → Every provider in Manchester → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Nadine Byers, DOManchester, NH 031011053833806
- Elizabeth Chang, FNP-BCManchester, NH 031011861259038
- Mary Cullen, DOManchester, NH 031011073710539
- Christopher Diamond, MDManchester, NH 031011326046624
- Laura Fry, MDManchester, NH 031011255328563
- Peter Kiprop, M.DManchester, NH 031011093973059
- Katherine Peters, D.O.Manchester, NH 031011982998522
- Amy Siemanowicz, APRNManchester, NH 031011285324889
Common questions
What is J Gavin Muir, MD's NPI number?
J Gavin Muir, MD's National Provider Identifier (NPI) is 1629071899, issued on May 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is J Gavin Muir, MD located?
The NPPES record lists a practice address at 145 Hollis St, Manchester, NH, 03101. Phone: (603) 626-9500. Providers update this record themselves, so call before visiting.
How can I verify J Gavin Muir, MD's license?
NPPES lists New Hampshire license number 10308, 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 J Gavin Muir, MD prescribe under Medicare Part D?
In 2024, J Gavin Muir, MD had 2,777 Medicare Part D claims for 244 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.