What is Gregory Groetsema's specialty?

Gregory Groetsema (NPI 1790727873) is a Medicare-billing provider whose primary specialty is Emergency Medicine in San Jose, CA.

Where does Gregory Groetsema practice?

Gregory Groetsema practices in San Jose, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1790727873.

How much does Medicare pay Gregory Groetsema?

Gregory Groetsema (NPI 1790727873) received approximately $79K in total Medicare Part B payments, serving 574 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1790727873

Gregory GroetsemaMD

PRACTICEOCONNOR HOSPITALSee all providers at this practice →

Emergency MedicineSan Jose, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

817

Unique beneficiaries

—

Total services

858

Distinct HCPCS

Medicare payment

$77K

Peer benchmark

Total Medicare services vs. 5,287 Emergency Medicine providers in CA — top quintile (cohort median 355).

PRESCRIBING · PART D · 2024

Total Rx claims

224

Beneficiaries

—

Total drug cost

$2K

Distinct drugs

Brand share

32.6%

Top prescribed drugs

Cephalexin71 claims

Ibuprofen41 claims

Nitrofurantoin Monohyd/M-Cryst22 claims

Ondansetron20 claims

Hydrocodone/Acetaminophen19 claims

QUALITY · MIPS · 2024

Final MIPS score

61.0

Quality

59.4

Cost

71.5

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

-1.68%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Gregory Groetsema'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
GRIFFIN, CHARLES	130	351
Vineet Sharma Diagnostic Radiology · Fremont, CA	106	209
Royal Ambulance Inc. Ambulance Service Provider · San Leandro, CA	37	86
David Hyun Cardiology · San Jose, CA	35	75
Dae-Wook Kang Internal Medicine · San Jose, CA	25	77
COUNTY OF SANTA CLARA	22	96
SAN JOSE HEALTHCARE SYSTEM, L.P.	19	60
FARR, SARA	17	32
Daniel Tse Internal Medicine · San Jose, CA	16	49
NPI 1447682380	16	59
Alexander Doan Nephrology · San Jose, CA	14	45
Sharad Dass Pulmonary Disease · San Jose, CA	13	24

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