David S. Fagan, MD
Internal Medicine Physician · Plymouth, NH
David S. Fagan, MD is an internal medicine physician with a practice address in Plymouth, New Hampshire, and NPI 1841220423, issued on Jul 3, 2006. Check the license (New Hampshire NH8707, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- David S. Fagan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- NH8707 NH
Self-reported in NPPES; status is on the state search - Practice location
- 101 Boulder Point Dr, Plymouth, NH 03264
- Phone
- (603) 536-4000
- Enumerated
- Jul 3, 2006
- Record last updated
- Mar 26, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (603) 536-4001
- Medicaid IDs
- 2165 VT
80002165 NH - Medicare enrollment
- Enrolled (PECOS I20031215000412); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 673 in New Hampshire → Look up another NPI →
Also registered at 101 Boulder Point Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Diane Arsenault, M.D.Family Medicine Physician1396792800
- Savannah Brown, APRNFamily Nurse Practitioner1174323323
- Mary Louise Brozena, AUDAudiologist-Hearing Aid Fitter1386968733
- Leesa Conway, MSPTPhysical Therapist1962612879
- Kristen Craig, FNP-BCFamily Nurse Practitioner1134606726
- Cecilia Disney, MDFamily Medicine Physician1235423443
Verify David S. Fagan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license NH8707Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% more Medicare Part D claims than the average internal medicine physician in 2024
5,852 Medicare Part D claims for 516 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 98 claims were for opioids.
Most prescribed
- Atorvastatin Calcium339 claims
- Lisinopril271 claims
- Levothyroxine Sodium224 claims
- Amlodipine Besylate220 claims
- Tamsulosin Hcl198 claims
- Metformin Hcl192 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.
Industry payments in 2024: $49.84
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through one group practice
- Mid-State Health CenterPlymouth, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David S. Fagan among 673 internal medicine physician records in New Hampshire
David S. Fagan, MD is one of 673 internal medicine physician records with a practice address in New Hampshire. 81% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 50% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1989 · median 2005 among the 443 with a school on file
- Record last updated2010 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 internal medicine physician records list a practice address in Plymouth
They are 7 of the 303 NPPES records with a practice address in Plymouth, and 673 internal medicine physician records in New Hampshire.
All 673 in New Hampshire → Every provider in Plymouth → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Linda Crawford, M.D.Plymouth, NH 032641770558231
- John Jehl, M.D.Plymouth, NH 032641891742375
- Frederick Kelsey, M.D.Plymouth, NH 032641518908151
- Dana Merrithew, MDPlymouth, NH 032641871522425
- Stephen Regan, MDPlymouth, NH 032641336127000
- Vidvud Valdmanis, M.D.Plymouth, NH 032641194804179
- Champa Abeysinghe, M.D.New London, NH 032571629257134
- Ogechi Agogbuo, MDNew London, NH 032571265007595
Common questions
What is David S. Fagan, MD's NPI number?
David S. Fagan, MD's National Provider Identifier (NPI) is 1841220423, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David S. Fagan, MD located?
The NPPES record lists a practice address at 101 Boulder Point Dr, Plymouth, NH, 03264. Phone: (603) 536-4000. Providers update this record themselves, so call before visiting.
How can I verify David S. Fagan, MD's license?
NPPES lists New Hampshire license number NH8707, 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 David S. Fagan, MD prescribe under Medicare Part D?
In 2024, David S. Fagan, MD had 5,852 Medicare Part D claims for 516 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.