John J. Guerin, M.D.
Cardiovascular Disease Physician · Falmouth, MA
John J. Guerin, M.D. is a cardiovascular disease physician with a practice address in Falmouth, Massachusetts, and NPI 1740391432, issued on Aug 31, 2006. Check the license (Massachusetts 79325, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- John J. Guerin
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 79325 MA
Self-reported in NPPES; status is on the state search - Practice location
- 90 Ter Heun Dr, Falmouth, MA 02540
- Phone
- (508) 540-0604
- Enumerated
- Aug 31, 2006
- Record last updated
- Mar 18, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (508) 457-0129
- Medicaid ID
- 3123324 MA
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 1,080 in Massachusetts → Look up another NPI →
Also registered at 90 Ter Heun Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- John Hostetter, M.D.Cardiovascular Disease Physician1518069954
- Bruce Levy, M.D.Cardiovascular Disease Physician1801999230
- Bernard Nagel, MDObstetrics & Gynecology Physician1114941036
Verify John J. Guerin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 79325Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
752 Medicare Part D claims for 339 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Metoprolol Succinate74 claims
- Atorvastatin Calcium67 claims
- Losartan Potassium55 claims
- Eliquis45 claims
- Amlodipine Besylate43 claims
- Lisinopril42 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.
John J. Guerin among 1,080 cardiovascular disease physician records in Massachusetts
John J. Guerin, M.D. is one of 1,080 cardiovascular disease physician records with a practice address in Massachusetts. 75% 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 17% of them.
- NPI issued2006 · 17% of these records are older, 45% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2009 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 cardiovascular disease physician records list a practice address in Falmouth
They are 7 of the 550 NPPES records with a practice address in Falmouth, and 1,080 cardiovascular disease physician records in Massachusetts.
All 1,080 in Massachusetts → Every provider in Falmouth → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- George Christman, MDFalmouth, MA 025401023057361
- John Hostetter, M.D.Falmouth, MA 025401518069954
- Jennifer Ladner, MDFalmouth, MA 025401801833488
- Bruce Levy, M.D.Falmouth, MA 025401801999230
- Thomas Sbarra, M.D.Falmouth, MA 025401770681066
- David Urbach, MDFalmouth, MA 025401295846962
- Carol Lynn Goldstein, MDEdgartown, MA 025391114370269
- Normand Lazarow, MDWoods Hole, MA 025431033292289
Common questions
What is John J. Guerin, M.D.'s NPI number?
John J. Guerin, M.D.'s National Provider Identifier (NPI) is 1740391432, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John J. Guerin, M.D. located?
The NPPES record lists a practice address at 90 Ter Heun Dr, Falmouth, MA, 02540. Phone: (508) 540-0604. Providers update this record themselves, so call before visiting.
How can I verify John J. Guerin, M.D.'s license?
NPPES lists Massachusetts license number 79325, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John J. Guerin, M.D. prescribe under Medicare Part D?
In 2024, John J. Guerin, M.D. had 752 Medicare Part D claims for 339 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.