What is Robert Grittmann's specialty?

Robert Grittmann (NPI 1689707291) is a Medicare-billing provider whose primary specialty is Internal Medicine in Waterloo, IA.

Where does Robert Grittmann practice?

Robert Grittmann practices in Waterloo, IA, based on the location reported in the CMS Medicare provider datasets for NPI 1689707291.

How much does Medicare pay Robert Grittmann?

Medicare Part B utilization, prescribing (Part D), MIPS quality scores, and industry payments for Robert Grittmann (NPI 1689707291) are detailed on this CareTrace profile.

PROVIDER PROFILE · NPI 1689707291

Robert Grittmann

Internal MedicineWaterloo, IAI

MEDICARE UTILIZATION · PART B · 2024

No data available for this provider in 2024.

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$1K

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Furosemide23 claims

Levetiracetam14 claims

Carvedilol13 claims

Losartan Potassium13 claims

Famotidine12 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Robert Grittmann'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). 35 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ALLEN MEMORIAL HOSPITAL CORPORATION	345	3,869
COUNTY OF BLACKHAWK	78	449
RAECKER, GREG	53	331
LIEBSCHER, LAWRENCE	51	338
SURNEDI, MURALI	41	101
David Kabel Cardiology · Cedar Falls, IA	40	112
STATE UNIVERSITY OF IOWA	39	143
Zachary Washburn Diagnostic Radiology · Scottsdale, AZ	38	119
Heather Nguyen Optometry · Cedar Rapids, IA	38	106
Joud Dib Cardiology · Waterloo, IA	29	89
Michael Slavin Nephrology · Waterloo, IA	24	252
Raja Akbar Psychiatry · Waterloo, IA	21	121

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