What is Brian Kossak's specialty?

Brian Kossak (NPI 1164459368) is a Medicare-billing provider whose primary specialty is Sleep Medicine in Manchester, NH.

Where does Brian Kossak practice?

Brian Kossak practices in Manchester, NH, based on the location reported in the CMS Medicare provider datasets for NPI 1164459368.

How much does Medicare pay Brian Kossak?

Brian Kossak (NPI 1164459368) received approximately $31K in total Medicare Part B payments, serving 249 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1164459368

Brian KossakM.D.

Sleep MedicineManchester, NHI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

325

Unique beneficiaries

—

Total services

360

Distinct HCPCS

Medicare payment

$30K

Peer benchmark

Total Medicare services vs. 6 Sleep Medicine providers in NH — below median (cohort median 503).

PRESCRIBING · PART D · 2024

Total Rx claims

103

Beneficiaries

—

Total drug cost

$6K

Distinct drugs

Brand share

11.7%

Top prescribed drugs

Gabapentin37 claims

Ropinirole Hcl29 claims

Clonazepam13 claims

Suvorexant12 claims

Zolpidem Tartrate12 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$90

Payment records

By payment type

Food and Beverage$90

Top paying entities

Food and Beverage$90

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (2)

CCN 300012

Hospital

CCN 300020

Hospital

REFERRAL NETWORK

Where Brian Kossak'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). 2 inbound referrers · 7 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MARY HITCHCOCK MEMORIAL HOSPITAL	82	280
ST JOSEPH HOSPITAL OF NASHUA NH	13	33

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
ELLIOT HOSPITAL OF THE CITY OF MANCHESTER	71	228
MARY HITCHCOCK MEMORIAL HOSPITAL	62	239
CATHOLIC MEDICAL CENTER	58	206
Karen Mattson Nurse Practitioner · Minnetonka, MN	21	63
SOUTHERN NEW HAMPSHIRE MEDICAL CENTER	20	40
Christina Dickey Physician Assistant · Manchester, NH	19	46
Steven Birnbaum Diagnostic Radiology · Worcester, MA	11	20

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