What is Irena Maier's specialty?

Irena Maier (NPI 1235161779) is a Medicare-billing provider whose primary specialty is Gastroenterology in Boston, MA.

Where does Irena Maier practice?

Irena Maier practices in Boston, MA, based on the location reported in the CMS Medicare provider datasets for NPI 1235161779.

How much does Medicare pay Irena Maier?

Irena Maier (NPI 1235161779) received approximately $218K in total Medicare Part B payments, serving 492 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1235161779

Irena MaierM.D.

PRACTICEATRIUS HEALTH, INCSee all providers at this practice →

GastroenterologyBoston, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,080

Unique beneficiaries

—

Total services

1,305

Distinct HCPCS

Medicare payment

$168K

Peer benchmark

Total Medicare services vs. 483 Gastroenterology providers in MA — top quintile (cohort median 638).

PRESCRIBING · PART D · 2024

Total Rx claims

1,271

Beneficiaries

—

Total drug cost

$180K

Distinct drugs

Brand share

46.4%

Top prescribed drugs

Omeprazole172 claims

Peg3350/Sod Sulf,bicarb,cl/Kcl168 claims

Peg3350/Sod Sul/Nacl/Kcl/Asb/C160 claims

Famotidine140 claims

Pantoprazole Sodium113 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 220086

Hospital

REFERRAL NETWORK

Where Irena Maier'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). 1 inbound referrers · 9 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA	25	113

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Tao Yang Pathology · Cambridge, MA	50	74
Alla Marshansky Anesthesiology · Brighton, MA	48	60
Joseph Bergeron Pathology · Needham, MA	44	63
Michael Ross Pathology · Newton, MA	31	37
JOYCE, SUSAN	29	40
BETH ISRAEL DEACONESS MEDICAL CENTER, INC.	27	67
Gilbert Brodsky Pathology · Needham, MA	15	22
Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA	12	71
Associated Regional And University Pathologists Inc Clinical Laboratory · Salt Lake City, UT	11	61

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