What is Geoffrey Spencer's specialty?

Geoffrey Spencer (NPI 1578625828) is a Medicare-billing provider whose primary specialty is Gastroenterology in San Jose, CA.

Where does Geoffrey Spencer practice?

Geoffrey Spencer practices in San Jose, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1578625828.

How much does Medicare pay Geoffrey Spencer?

Geoffrey Spencer (NPI 1578625828) received approximately $213K in total Medicare Part B payments, serving 874 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1578625828

Geoffrey SpencerMD

GastroenterologySan Jose, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,538

Unique beneficiaries

—

Total services

1,604

Distinct HCPCS

Medicare payment

$199K

Peer benchmark

Total Medicare services vs. 1,398 Gastroenterology providers in CA — top quintile (cohort median 750).

PRESCRIBING · PART D · 2024

Total Rx claims

1,018

Beneficiaries

—

Total drug cost

$513K

Distinct drugs

Brand share

50.5%

Top prescribed drugs

Sodium, Potassium,mag Sulfates247 claims

Omeprazole182 claims

Sodium Chloride/Nahco3/Kcl/Peg172 claims

Pantoprazole Sodium120 claims

Famotidine63 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Geoffrey Spencer'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). 17 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
GOOD SAMARITAN HOSPITAL, L.P.	125	523
ENDOSCOPY SURGERY CENTER OF SILICON VALLEY LLC	65	87
Matthew Tran Diagnostic Radiology · San Jose, CA	33	220
Judong Pan Diagnostic Radiology · San Francisco, CA	31	142
Edmund Tai Hematology-Oncology · Mountain View, CA	29	123
DOUGLAS, BRUCE	29	41
John Gonzales Pathology · San Jose, CA	27	45
BERKELEY, DAVID	26	48
NPI 1447682380	26	72
Randolph Fung Anesthesiology · San Jose, CA	18	39
Minhtruong Lai Critical Care (Intensivists) · San Jose, CA	14	113
EL CAMINO HOSPITAL	13	38

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