John P. Brennan, MD
Pulmonary Disease Physician · Exeter, NH
John P. Brennan, MD is a pulmonary disease physician with a practice address in Exeter, New Hampshire, and NPI 1851339071, issued on Jun 2, 2006. Check the license (New Hampshire 13816, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- John P. Brennan
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- 13816 NH
Self-reported in NPPES; status is on the state search - Practice location
- 3 Alumni Dr Ste 301, Exeter, NH 03833
- Phone
- (603) 775-0234
- Enumerated
- Jun 2, 2006
- Record last updated
- Feb 24, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (603) 772-1188
- Medicaid ID
- 3076877 NH
- Medicare enrollment
- Enrolled (PECOS I20080811000141); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2002
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 86 in New Hampshire → Look up another NPI →
Also registered at 3 Alumni Dr Ste 301
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shea Ahern, ARNPNurse Practitioner1841985645
- Paul Deranian, MDPulmonary Disease Physician1154381374
- Lauren DubePhysician Assistant1881588598
- Rebecca Gamester, P.A.Surgical Physician Assistant1629220595
- Robert Henley, MDSurgery Physician1508098237
- Richard Hollister, MDPulmonary Disease Physician1194751743
Verify John P. Brennan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 13816Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average pulmonary disease physician in 2024
3,337 Medicare Part D claims for 513 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of claims.
Most prescribed
- Trelegy Ellipta455 claims
- Albuterol Sulfate Hfa335 claims
- Azithromycin334 claims
- Montelukast Sodium261 claims
- Prednisone255 claims
- Breo Ellipta198 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: $75.54
3 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 8,806 providers of this specialty with any payment received $5,159.88 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 2 group practices
- Core Physicians LLCExeter, NH
- Elliot Professional ServicesManchester, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John P. Brennan among 86 pulmonary disease physician records in New Hampshire
John P. Brennan, MD is one of 86 pulmonary disease physician records with a practice address in New Hampshire. 86% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 52% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2002 · median 2003 among the 69 with a school on file
- Record last updated2020 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in New Hampshire
There are 86 pulmonary disease physician records in New Hampshire.
All 86 in New Hampshire → Every provider in Exeter → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Paul Deranian, MDExeter, NH 038331154381374
- Richard Hollister, MDExeter, NH 038331194751743
- Ali Al-Alwan, MDDover, NH 038201235320318
- Manuel De Aguirre, M.D.Dover, NH 038201477882967
- Dhruv Desai, M.DDover, NH 038201265872584
- Vinia Madonna Mendoza, M.D.Dover, NH 038201134338858
- Bianca MonteiroDover, NH 038201467615013
- Syed Mudassar Naqshbandi, MDDover, NH 038201295087468
Common questions
What is John P. Brennan, MD's NPI number?
John P. Brennan, MD's National Provider Identifier (NPI) is 1851339071, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John P. Brennan, MD located?
The NPPES record lists a practice address at 3 Alumni Dr Ste 301, Exeter, NH, 03833. Phone: (603) 775-0234. Providers update this record themselves, so call before visiting.
How can I verify John P. Brennan, MD's license?
NPPES lists New Hampshire license number 13816, 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 P. Brennan, MD prescribe under Medicare Part D?
In 2024, John P. Brennan, MD had 3,337 Medicare Part D claims for 513 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.