PROVIDER PROFILE · NPI 1740238708

Heidi WitherellMD

PRACTICENORTHERN CALIFORNIA ANESTHESIASee all providers at this practice →

AnesthesiologySan Francisco, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$593

Peer benchmark

Total Medicare services vs. 4,547 Anesthesiology providers in CA — bottom quintile (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

Total received

$104

Payment records

By payment type

Food and Beverage$104

REFERRAL NETWORK

Where Heidi Witherell'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 · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Vail Valley Surgery Center, Llc Ambulatory Surgical Center · Edwards, CO	28	36
Scott Raub Physical Medicine and Rehabilitation · Frisco, CO	15	28

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