What is Hariharan Subramanian's specialty?

Hariharan Subramanian (NPI 1801080080) is a Medicare-billing provider whose primary specialty is Cardiology in Holyoke, MA.

Where does Hariharan Subramanian practice?

Hariharan Subramanian practices in Holyoke, MA, based on the location reported in the CMS Medicare provider datasets for NPI 1801080080.

How much does Medicare pay Hariharan Subramanian?

Hariharan Subramanian (NPI 1801080080) received approximately $140K in total Medicare Part B payments, serving 1,706 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1801080080

Hariharan SubramanianM.D.

CardiologyHolyoke, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,822

Unique beneficiaries

—

Total services

3,542

Distinct HCPCS

Medicare payment

$135K

Peer benchmark

Total Medicare services vs. 693 Cardiology providers in MA — top quintile (cohort median 1,819).

PRESCRIBING · PART D · 2024

Total Rx claims

4,298

Beneficiaries

—

Total drug cost

$1.1M

Distinct drugs

Brand share

30.9%

Top prescribed drugs

Apixaban547 claims

Metoprolol Succinate506 claims

Atorvastatin Calcium372 claims

Amlodipine Besylate339 claims

Metoprolol Tartrate252 claims

QUALITY · MIPS · 2024

Final MIPS score

100.0

Quality

83.0

Cost

0.0

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

1.05%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$62

Payment records

By payment type

Food and Beverage$62

Top paying entities

Food and Beverage$62

REFERRAL NETWORK

Where Hariharan Subramanian'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). 74 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Nayyer Ghias Hospitalist · Holyoke, MA	97	450
BAYSTATE MEDICAL CENTER INC	92	290
Julian Hernandez Emergency Medicine · Natchitoches, LA	89	267
Yong Hwa Lee Emergency Medicine · Somerville, MA	87	216
Diana Israeli Internal Medicine · Northampton, MA	86	381
Mohammad Bajwa Internal Medicine · Holyoke, MA	80	327
Cemil Erdem Emergency Medicine · Springfield, MA	79	196
CLINTON, DAVID	69	272
Juan Paolo Lirio Internal Medicine · Norwalk, CT	65	262
Jennifer Mark Family Practice · Athol, MA	58	132
Mrinal Mali Diagnostic Radiology · Hartford, CT	52	123
Fire District No. 1 Ambulance Service Provider · South Hadley, MA	51	115

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