What is Jason Grunes's specialty?

Jason Grunes (NPI 1619131539) is a Medicare-billing provider whose primary specialty is Internal Medicine in Braintree, MA.

Where does Jason Grunes practice?

Jason Grunes practices in Braintree, MA, based on the location reported in the CMS Medicare provider datasets for NPI 1619131539.

How much does Medicare pay Jason Grunes?

Jason Grunes (NPI 1619131539) received approximately $546K in total Medicare Part B payments, serving 626 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1619131539

Jason GrunesM.D.

PRACTICEFS PATRIOT LLCSee all providers at this practice →

Internal MedicineBraintree, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,252

Unique beneficiaries

—

Total services

6,294

Distinct HCPCS

Medicare payment

$546K

Peer benchmark

Total Medicare services vs. 3,978 Internal Medicine providers in MA — top quintile (cohort median 564).

PRESCRIBING · PART D · 2024

Total Rx claims

1,617

Beneficiaries

—

Total drug cost

$44K

Distinct drugs

Brand share

7.9%

Top prescribed drugs

Metoprolol Succinate107 claims

Gabapentin89 claims

Atorvastatin Calcium85 claims

Methocarbamol82 claims

Oxycodone Hcl81 claims

QUALITY · MIPS · 2024

Final MIPS score

100.0

Quality

92.5

Cost

0.0

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

1.05%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Jason Grunes'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). 57 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ENCOMPASS HEALTH REHABILITATION HOSPITAL OF NEW ENGLAND, LLC	345	2,811
Armstrong Ambulance Service Ambulance Service Provider · Arlington, MA	139	1,316
Raymond Villalobos Physical Medicine and Rehabilitation · Spokane, WA	62	820
Patricia Rea Psychiatry · Cambridge, MA	56	632
Ariel Savitz Physical Medicine and Rehabilitation · Woburn, MA	51	878
HEBERT, PATRICIA	48	943
FALLON SERVICE, INC.	45	368
BAKAL, CURTIS	41	559
Destiny Murphy Neurology · Shrewsbury, MA	39	358
Aliza Acker-Bernstein Family Practice · Peabody, MA	39	422
Mandy Simon Nurse Practitioner · Shrewsbury, MA	38	384
JAWORSKI, MAVIS	35	240

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events