John Granquist, M.D.
Cardiovascular Disease Physician · Hartford, CT
John Granquist, M.D. is a cardiovascular disease physician with a practice address in Hartford, Connecticut, and NPI 1699821892, issued on Jan 28, 2007. Check the license on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- John Granquist
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- Practice location
- Consulting Cardiologists, P.C., Hartford, CT 06106
- Phone
- (860) 522-1761
- Enumerated
- Jan 28, 2007
- Entity
- Type 1 · individual
Verify John Granquist in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining BoardCheck 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 cardiovascular disease physician in 2024
7,268 Medicare Part D claims for 952 beneficiaries, against an average of 3,149 among the 19,556 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Metoprolol Succinate1,007 claims
- Eliquis880 claims
- Atorvastatin Calcium530 claims
- Amlodipine Besylate414 claims
- Losartan Potassium340 claims
- Metoprolol Tartrate336 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.
The Medicare quality score for 2023: 95.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
3 hospital and facility affiliations
- Hartford HospitalHartford, CT · Acute Care Hospitals4 of 5 stars
- Midstate Medical CenterMeriden, CT · Acute Care Hospitals4 of 5 stars
- Consulting Cardiologists PCAvon, CT
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Cardiovascular Disease Physician providers in Connecticut
There are 444 cardiovascular disease physician records in Connecticut.
Other cardiovascular disease physician records in Connecticut
- Khaled AbazaMiddletown, CT1255986121
- Binny Abraham, M.D.New Haven, CT1760657647
- Joseph Abreu, MDTorrington, CT1003996240
- Sneha Agarwalla, MDBloomfield, CT1801245162
- Elliot Agin, M.D.Milford, CT1790729093
- Keshava Aithal, MDMiddletown, CT1811005713
- Emmanuel AkintoyeNew Haven, CT1659767598
- Abeera Akram, MDWaterbury, CT1497240238
- Mohammed Al-Damluji, MD, MPHMiddletown, CT1114312766
- Karl Alcan, M.D.Trumbull, CT1689778144
Common questions
What is John Granquist, M.D.'s NPI number?
John Granquist, M.D.'s National Provider Identifier (NPI) is 1699821892, issued on Jan 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Granquist, M.D. located?
The NPPES record lists a practice address at Consulting Cardiologists, P.C., Hartford, CT, 06106. Phone: (860) 522-1761. Providers update this record themselves, so call before visiting.
How can I verify John Granquist, M.D.'s license?
Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Granquist, M.D. prescribe under Medicare Part D?
In 2024, John Granquist, M.D. had 7,268 Medicare Part D claims for 952 beneficiaries; the average among cardiovascular disease physician prescribers was 3,149. Part D covers Medicare prescriptions only.
What is John Granquist, M.D.'s Medicare quality score?
The 2023 MIPS final score is 95.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.