PROVIDER PROFILE · NPI 1699821892

John GranquistM.D.

CardiologyHartford, CTI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

5,563

Unique beneficiaries

—

Total services

7,898

Distinct HCPCS

Medicare payment

$261K

Peer benchmark

Total Medicare services vs. 375 Cardiology providers in CT — top quintile (cohort median 1,798).

PRESCRIBING · PART D · 2024

Total Rx claims

6,963

Beneficiaries

—

Total drug cost

$2.0M

Distinct drugs

Brand share

28.4%

Top prescribed drugs

Metoprolol Succinate1,007 claims

Apixaban880 claims

Atorvastatin Calcium530 claims

Amlodipine Besylate414 claims

Losartan Potassium340 claims

QUALITY · MIPS · 2024

Final MIPS score

87.7

Quality

68.4

Cost

76.6

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.54%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where John Granquist's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 273 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
HARTFORD HEALTHCARE LABORATORIES	588	1,468
Aetna Ambulance Service, Inc Ambulance Service Provider · Hartford, CT	338	617
American Medical Response Of Connecticut Incorporated Ambulance Service Provider · New Haven, CT	285	499
Maximilian Lee Cardiology · Hartford, CT	269	524
Ambulance Service Of Manchester, Llc Ambulance Service Provider · Manchester, CT	263	527
Quest Diagnostics Llc Clinical Laboratory · Wallingford, CT	262	629
Douglas Moote Diagnostic Radiology · Hartford, CT	190	281
Jeffrey Walden Cardiology · Hartford, CT	184	408
KALLAL, JAMES	183	291
Melissa Ferraro-Borgida Cardiology · Hartford, CT	173	337
Komsu Mamuya Cardiology · Wethersfield, CT	165	361
Bret Coughlin Diagnostic Radiology · Hartford, CT	163	253

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history