What is Nathaniel Ponstein's specialty?

Nathaniel Ponstein (NPI 1114123775) is a Medicare-billing provider whose primary specialty is Anesthesiology in Stanford, CA.

Where does Nathaniel Ponstein practice?

Nathaniel Ponstein practices in Stanford, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1114123775.

How much does Medicare pay Nathaniel Ponstein?

Nathaniel Ponstein (NPI 1114123775) received approximately $67K in total Medicare Part B payments, serving 228 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1114123775

Nathaniel PonsteinM.D.

PRACTICESTANFORD HEALTH CARESee all providers at this practice →

AnesthesiologyStanford, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

293

Unique beneficiaries

—

Total services

296

Distinct HCPCS

Medicare payment

$30K

Peer benchmark

Total Medicare services vs. 4,547 Anesthesiology providers in CA — top 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.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 050197

Hospital

REFERRAL NETWORK

Where Nathaniel Ponstein'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 · 3 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
UCSF HEALTH COMMUNITY HOSPITALS	24	34

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
UCSF HEALTH COMMUNITY HOSPITALS	28	44
CHUNG, MARILDA	13	13
Luke Scalcione Diagnostic Radiology · San Diego, CA	11	11

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