What is Allan Grunberg's specialty?

Allan Grunberg (NPI 1841217759) is a Medicare-billing provider whose primary specialty is Anesthesiology in Washington Depot, CT.

Where does Allan Grunberg practice?

Allan Grunberg practices in Washington Depot, CT, based on the location reported in the CMS Medicare provider datasets for NPI 1841217759.

How much does Medicare pay Allan Grunberg?

Allan Grunberg (NPI 1841217759) received approximately $23K in total Medicare Part B payments, serving 406 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1841217759

Allan GrunbergM.D.

AnesthesiologyWashington Depot, CTI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

417

Unique beneficiaries

—

Total services

426

Distinct HCPCS

Medicare payment

$23K

Peer benchmark

Total Medicare services vs. 590 Anesthesiology providers in CT — top quintile (cohort median 201).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$645

Payment records

By payment type

Food and Beverage$645

Top paying entities

Food and Beverage$645

REFERRAL NETWORK

Where Allan Grunberg'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). 18 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Daniel Southern Physical Medicine and Rehabilitation · Norwalk, CT	43	88
John O'brien Certified Registered Nurse Anesthetist (CRNA) · Danbury, CT	41	43
Quest Diagnostics Llc Clinical Laboratory · Wallingford, CT	34	41
Robert Deveney Orthopedic Surgery · Danbury, CT	28	74
John Dunleavy Orthopedic Surgery · Danbury, CT	23	65
Michael Brand Orthopedic Surgery · Danbury, CT	21	52
HARTFORD HEALTHCARE LABORATORIES	16	18
Jeffrey Schmierer Cardiology · Danbury, CT	16	19
Kirt Frederickson Diagnostic Radiology · Danbury, CT	16	17
Maureen Devlin Certified Registered Nurse Anesthetist (CRNA) · Danbury, CT	16	16
Kirsten Butkovsky Certified Registered Nurse Anesthetist (CRNA) · New London, NH	16	16
Christopher German Physician Assistant · Danbury, CT	14	23

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