PROVIDER PROFILE · NPI 1073543146

Maria StapferMD

General SurgeryFullerton, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

230

Unique beneficiaries

—

Total services

483

Distinct HCPCS

Medicare payment

$33K

Peer benchmark

Total Medicare services vs. 1,763 General Surgery providers in CA — top quintile (cohort median 269).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$48K

Distinct drugs

Brand share

69.4%

Top prescribed drugs

Lipase/Protease/Amylase25 claims

Pantoprazole Sodium11 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$167

Payment records

By payment type

Food and Beverage$167

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 050168

Hospital

REFERRAL NETWORK

Where Maria Stapfer'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). 7 inbound referrers · 20 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	27	212
Robert Selby General Surgery · Los Angeles, CA	27	133
John Cupp Pathology · Newport Beach, CA	19	81
Winston Whitney Diagnostic Radiology · Newport Beach, CA	14	33
Peter Giuliano Diagnostic Radiology · Newport Beach, CA	12	44
Scott Williams Diagnostic Radiology · Stanford, CA	12	48
Frederick Birnberg Diagnostic Radiology · Newport Beach, CA	11	42

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
HOAG MEMORIAL HOSPITAL PRESBYTERIAN	94	1,099
Robert Selby General Surgery · Los Angeles, CA	43	289
UNIVERSITY OF SOUTHERN CALIFORNIA	24	148
Jinsoo Keyoung Diagnostic Radiology · Stanford, CA	23	125
Roger Thomas Diagnostic Radiology · Newport Beach, CA	20	100
Unilab Corporation Clinical Laboratory · West Hills, CA	20	153
CALIFORNIA LABORATORY SCIENCES LLC	18	80
Humberto Wong Diagnostic Radiology · Stanford, CA	17	81
Shaya Ghazinoor Diagnostic Radiology · Newport Beach, CA	17	97
Mark Chen Diagnostic Radiology · Newport Beach, CA	17	115
Thuan Tran Diagnostic Radiology · Newport Beach, CA	15	47
John Cupp Pathology · Newport Beach, CA	15	63

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