What is Michael Zimmerman's specialty?

Michael Zimmerman (NPI 1871601302) is a Medicare-billing provider whose primary specialty is Gastroenterology in Las Vegas, NV.

Where does Michael Zimmerman practice?

Michael Zimmerman practices in Las Vegas, NV, based on the location reported in the CMS Medicare provider datasets for NPI 1871601302.

How much does Medicare pay Michael Zimmerman?

Michael Zimmerman (NPI 1871601302) received approximately $224K in total Medicare Part B payments, serving 918 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1871601302

Michael ZimmermanM.D.

GastroenterologyLas Vegas, NVI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,926

Unique beneficiaries

—

Total services

2,018

Distinct HCPCS

Medicare payment

$221K

Peer benchmark

Total Medicare services vs. 83 Gastroenterology providers in NV — top quintile (cohort median 843).

PRESCRIBING · PART D · 2024

Total Rx claims

1,568

Beneficiaries

—

Total drug cost

$280K

Distinct drugs

Brand share

31.5%

Top prescribed drugs

Pantoprazole Sodium685 claims

Sod Picosulf/Mag Ox/Citric Ac173 claims

Sodium, Potassium,mag Sulfates156 claims

Omeprazole113 claims

Famotidine88 claims

QUALITY · MIPS · 2024

Final MIPS score

21.9

Quality

0.0

Cost

73.2

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

-6.37%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$3K

Payment records

122

By payment type

Food and Beverage$3K

Education$115

Top paying entities

Food and Beverage$3K

Education$115

REFERRAL NETWORK

Where Michael Zimmerman'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). 52 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Quest Diagnostics Incorporated Clinical Laboratory · Las Vegas, NV	247	1,244
SCHROEDER, HARRY	150	417
SUNRISE MOUNTAINVIEW HOSPITAL, INC.	115	335
Mercy Inc Ambulance Service Provider · Las Vegas, NV	43	79
SHAH, DHAVAL	33	395
Dennis Griggs Certified Registered Nurse Anesthetist (CRNA) · Las Vegas, NV	33	88
Suhattai Gamnerdsiri Cardiology · Las Vegas, NV	31	180
Clark Jean Hematology-Oncology · Las Vegas, NV	29	111
Carl Williams Plastic and Reconstructive Surgery · Las Vegas, NV	29	193
Clinical Pathology Laboratories, Inc. Clinical Laboratory · Austin, TX	28	123
Edwin Adolfo Anesthesiology · Las Vegas, NV	27	79
Quality Medical Imaging Of Nevada Llc. Portable X-Ray Supplier · Las Vegas, NV	26	96

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