NPPES file of Aug 9, 2026

Stephen Andrew Gannon, M.D.

Cardiovascular Disease Physician · Cambridge, MA

Stephen Andrew Gannon, M.D. is a cardiovascular disease physician with a practice address in Cambridge, Massachusetts, and NPI 1881960037, issued on Mar 31, 2012. Check the license (Massachusetts 274883, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1881960037
Name
Stephen Andrew Gannon
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License numbers
274883 MA
MD15347 RI
Self-reported in NPPES; status is on the state search
Practice location
300 Mount Auburn St Ste 310, Cambridge, MA 02138
Phone
(617) 497-1560
Enumerated
Mar 31, 2012
Record last updated
May 18, 2022
Fax
(617) 497-1190
Medicaid ID
110146553A MA
Medicare enrollment
Enrolled (PECOS I20200310001171); accepts Medicare assignment
Medical or professional school
University Of Connecticut School Of Medicine, 2012
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 300 Mount Auburn St Ste 310

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Elizabeth Green, CNPNurse Practitioner1770182230
  2. Brooke Harlow, PHARMDCardiology Pharmacist1982585477
  3. Erin MerrittAcute Care Nurse Practitioner1427784305
  4. Binu Philips, M.D.Clinical Cardiac Electrophysiology Physician1942474895
  5. Yun- Ting Eric Yeh, M.D.Cardiovascular Disease Physician1013356971

Verify Stephen Andrew Gannon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 274883
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

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36% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

1,980 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 15% of claims.

  1. Stephen Gannon1,980
  2. Specialty average3,078

Most prescribed

  1. Metoprolol Succinate390 claims
  2. Atorvastatin Calcium268 claims
  3. Clopidogrel206 claims
  4. Lisinopril120 claims
  5. Furosemide114 claims
  6. Eliquis109 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: $441.66

16 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephen Gannon$441.66
  2. Specialty average$3,819.56

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

  1. Macro, Inc.Cambridge, MA
  2. Mount Auburn Cardiology Associates IncFramingham, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Stephen Andrew Gannon among 1,080 cardiovascular disease physician records in Massachusetts

Stephen Andrew Gannon, 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 2012, is newer than 76% of them.

  • NPI issued2012 · 76% of these records are older, 22% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2012 · median 2001 among the 698 with a school on file
  • Record last updated2022 · 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).

Cardiovascular Disease Physician providers in Massachusetts

There are 1,080 cardiovascular disease physician records in Massachusetts.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Robert Campbell, M.D.Cambridge, MA 021381982670857
  2. David Farmer, MDCambridge, MA 021381962454298
  3. Marion Hogan, MDCambridge, MA 021381326005349
  4. Jeffrey Leavitt, MDCambridge, MA 021381861469785
  5. Kyle Pond, MDCambridge, MA 021381326090622
  6. Burton Rabinowitz, MDCambridge, MA 021381184668691
  7. Fabian Reimold, M.D., PH. D.Cambridge, MA 021381609216571
  8. Yun- Ting Eric Yeh, M.D.Cambridge, MA 021381013356971

Common questions

What is Stephen Andrew Gannon, M.D.'s NPI number?

Stephen Andrew Gannon, M.D.'s National Provider Identifier (NPI) is 1881960037, issued on Mar 31, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Andrew Gannon, M.D. located?

The NPPES record lists a practice address at 300 Mount Auburn St Ste 310, Cambridge, MA, 02138. Phone: (617) 497-1560. Providers update this record themselves, so call before visiting.

How can I verify Stephen Andrew Gannon, M.D.'s license?

NPPES lists Massachusetts license number 274883, 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 Stephen Andrew Gannon, M.D. prescribe under Medicare Part D?

In 2024, Stephen Andrew Gannon, M.D. had 1,980 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.