What is David Zimmerman's specialty?

David Zimmerman (NPI 1639148232) is a Medicare-billing provider whose primary specialty is Hematology-Oncology in Fort Wayne, IN.

Where does David Zimmerman practice?

David Zimmerman practices in Fort Wayne, IN, based on the location reported in the CMS Medicare provider datasets for NPI 1639148232.

How much does Medicare pay David Zimmerman?

David Zimmerman (NPI 1639148232) received approximately $2.2M in total Medicare Part B payments, serving 582 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1639148232

David ZimmermanM.D.

PRACTICEFORT WAYNE MEDICAL ONCOLOGY AND HEMATOLOGY INCSee all providers at this practice →

Hematology-OncologyFort Wayne, INI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,483

Unique beneficiaries

—

Total services

54,259

Distinct HCPCS

Medicare payment

$1.0M

Peer benchmark

Total Medicare services vs. 177 Hematology-Oncology providers in IN — top quintile (cohort median 1,010).

PRESCRIBING · PART D · 2024

Total Rx claims

1,592

Beneficiaries

—

Total drug cost

$4.9M

Distinct drugs

Brand share

42.4%

Top prescribed drugs

Anastrozole148 claims

Apixaban113 claims

Acyclovir94 claims

Ondansetron78 claims

Hydroxyurea76 claims

QUALITY · MIPS · 2024

Final MIPS score

82.7

Quality

86.5

Cost

61.0

Improvement activities

40.0

Promoting interop.

81.0

Payment adjustment

0.32%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$5K

Payment records

107

By payment type

Food and Beverage$2K

Consulting Fee$1K

Long term medical supply or device loan$881

Education$100

Top paying entities

Food and Beverage$2K

Consulting Fee$1K

Long term medical supply or device loan$881

Education$100

REFERRAL NETWORK

Where David 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). 55 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
IOM HEALTH SYSTEM LP	238	1,770
Matthew Carr Hematology-Oncology · Fort Wayne, IN	107	520
Praveen Kollipara Hematology-Oncology · Fort Wayne, IN	103	466
CAMERON MEMORIAL COMMUNITY HOSPITAL, INC.	94	1,554
PARKVIEW HOSPITAL, INC.	93	342
Ryan Gonzales Hematology-Oncology · Fort Wayne, IN	92	365
Richard Sibley Diagnostic Radiology · Fort Wayne, IN	84	175
James Arata Diagnostic Radiology · Fort Wayne, IN	56	104
Andre Stovall Diagnostic Radiology · Fort Wayne, IN	29	73
Dakshesh Patel Diagnostic Radiology · Fort Wayne, IN	28	48
Motaz Shaher Cardiology · Lafayette, IN	26	67
Christopher Kowalski Diagnostic Radiology · Warsaw, IN	23	50

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