What is Maria Stapfer's specialty?

Maria Stapfer (NPI 1073543146) is a Medicare-billing provider whose primary specialty is General Surgery in Fullerton, CA.

Where does Maria Stapfer practice?

Maria Stapfer practices in Fullerton, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1073543146.

How much does Medicare pay Maria Stapfer?

Maria Stapfer (NPI 1073543146) received approximately $69K in total Medicare Part B payments, serving 129 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

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

Top paying entities

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events