PROVIDER PROFILE · NPI 1891715090

John TimmermanMD

Hematology-OncologyLos Angeles, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

269

Unique beneficiaries

—

Total services

624

Distinct HCPCS

Medicare payment

$49K

Peer benchmark

Total Medicare services vs. 957 Hematology-Oncology providers in CA — above median (cohort median 4,173).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$288K

Distinct drugs

Brand share

100.0%

Top prescribed drugs

Zanubrutinib19 claims

QUALITY · MIPS · 2024

Final MIPS score

87.5

Quality

79.4

Cost

73.7

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.53%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$83

Payment records

By payment type

Food and Beverage$83

REFERRAL NETWORK

Where John Timmerman'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). 6 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
REGENTS OF THE UNIV OF CALIFORNIA	23	329
John Chute Hematology-Oncology · West Hollywood, CA	15	321
Donald Roback Diagnostic Radiology · Manhattan Beach, CA	15	83
Benjamin Plotkin Diagnostic Radiology · Los Angeles, CA	12	87
Sophie Song Pathology · Los Angeles, CA	11	82
Sheeja Pullarkat Pathology · Los Angeles, CA	11	128

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