What is Dirk Schermer's specialty?

Dirk Schermer (NPI 1902855620) is a Medicare-billing provider whose primary specialty is Anesthesiology in Santa Rosa, CA.

Where does Dirk Schermer practice?

Dirk Schermer practices in Santa Rosa, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1902855620.

How much does Medicare pay Dirk Schermer?

Dirk Schermer (NPI 1902855620) received approximately $29K in total Medicare Part B payments, serving 199 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1902855620

Dirk SchermerMD

PRACTICEAYNNA YEE M.D. INCSee all providers at this practice →

AnesthesiologySanta Rosa, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

133

Unique beneficiaries

—

Total services

145

Distinct HCPCS

Medicare payment

$18K

Peer benchmark

Total Medicare services vs. 4,547 Anesthesiology providers in CA — above median (cohort median 182).

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

No data available for this provider in 2025.

REFERRAL NETWORK

Where Dirk Schermer'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). 9 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Santa Rosa Surgery Center L P Ambulatory Surgical Center · Santa Rosa, CA	92	99
ST. JOSEPH HEALTH NORTHERN CALIFORNIA, LLC	53	70
Paul Wasserstein Pathology · Greenbrae, CA	19	21
SUTTER WEST BAY MEDICAL FOUNDATION	15	37
Sumit Kohli Gastroenterology · Santa Rosa, CA	14	20
Joshua Tennenbaum Pathology · Memphis, TN	12	12
Shawn Daly Diagnostic Radiology · Santa Rosa, CA	12	15
GARCIA-KENNEDY, RICHARD	11	12
NORTH SONOMA COUNTY HEALTH CARE DISTRICT	11	25

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