What is Nathan Grunwald's specialty?

Nathan Grunwald (NPI 1073549887) is a Medicare-billing provider whose primary specialty is Family Practice in Menasha, WI.

Where does Nathan Grunwald practice?

Nathan Grunwald practices in Menasha, WI, based on the location reported in the CMS Medicare provider datasets for NPI 1073549887.

How much does Medicare pay Nathan Grunwald?

Nathan Grunwald (NPI 1073549887) received approximately $49K in total Medicare Part B payments, serving 156 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1073549887

Nathan GrunwaldMD

Family PracticeMenasha, WII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

845

Unique beneficiaries

—

Total services

1,235

Distinct HCPCS

Medicare payment

$43K

Peer benchmark

Total Medicare services vs. 2,096 Family Practice providers in WI — top quintile (cohort median 478).

PRESCRIBING · PART D · 2024

Total Rx claims

6,441

Beneficiaries

—

Total drug cost

$424K

Distinct drugs

Brand share

14.0%

Top prescribed drugs

Atorvastatin Calcium797 claims

Amlodipine Besylate501 claims

Losartan Potassium291 claims

Omeprazole245 claims

Metoprolol Succinate238 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.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (4)

Home health agency

Hospice

Hospital

Hospital

REFERRAL NETWORK

Where Nathan Grunwald'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). 1 inbound referrers · 4 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ASCENSION NE WISCONSIN, INC	11	64

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
THEDACARE REGIONAL MEDICAL CENTER - APPLETON, INC.	45	423
THEDACARE REGIONAL MEDICAL CENTER-NEENAH, INC.	42	534
John Spencer Family Practice · Menasha, WI	14	93
David Anderla Family Practice · Appleton, WI	13	90

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