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 · 2024

No data available for this provider in 2024.

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