What is Heidi Witherell's specialty?

Heidi Witherell (NPI 1740238708) is a Medicare-billing provider whose primary specialty is Anesthesiology in San Francisco, CA.

Where does Heidi Witherell practice?

Heidi Witherell practices in San Francisco, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1740238708.

How much does Medicare pay Heidi Witherell?

Heidi Witherell (NPI 1740238708) received approximately $8K in total Medicare Part B payments, serving 53 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

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 · 2025

No data available for this provider in 2025.

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events