What is John Zimmermann's specialty?

John Zimmermann (NPI 1740221225) is a Medicare-billing provider whose primary specialty is Medical Oncology in Palmer, AK.

Where does John Zimmermann practice?

John Zimmermann practices in Palmer, AK, based on the location reported in the CMS Medicare provider datasets for NPI 1740221225.

How much does Medicare pay John Zimmermann?

John Zimmermann (NPI 1740221225) received approximately $4.3M in total Medicare Part B payments, serving 309 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1740221225

John ZimmermannM.D.

Medical OncologyPalmer, AKI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,425

Unique beneficiaries

—

Total services

43,712

Distinct HCPCS

Medicare payment

$1.8M

Peer benchmark

Total Medicare services vs. 5 Medical Oncology providers in AK — near median (cohort median 102,139).

PRESCRIBING · PART D · 2024

Total Rx claims

547

Beneficiaries

—

Total drug cost

$1.1M

Distinct drugs

Brand share

29.3%

Top prescribed drugs

Anastrozole92 claims

Ondansetron35 claims

Letrozole33 claims

Oxycodone Hcl29 claims

Dexamethasone28 claims

QUALITY · MIPS · 2024

Final MIPS score

89.7

Quality

79.4

Cost

0.0

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

0.62%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$2K

Payment records

By payment type

Food and Beverage$2K

Top paying entities

Food and Beverage$2K

REFERRAL NETWORK

Where John Zimmermann'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). 8 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MAT SU VALLEY MEDICAL CENTER LLC	79	460
Jose Suarez Hematology-Oncology · Miami, FL	66	357
Laboratory Corporation Of America Clinical Laboratory · Seattle, WA	61	190
SWANK, DOUGLAS	18	52
John Fink Pathology · West Bend, WI	17	46
PROVIDENCE HEALTH & SERVICES WASHINGTON	16	33
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Seattle, WA	13	21
VROM LLC	11	264

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