What is Sabina Wallach's specialty?

Sabina Wallach (NPI 1871529081) is a Medicare-billing provider whose primary specialty is Hematology-Oncology in La Jolla, CA.

Where does Sabina Wallach practice?

Sabina Wallach practices in La Jolla, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1871529081.

How much does Medicare pay Sabina Wallach?

Sabina Wallach (NPI 1871529081) received approximately $1.5M in total Medicare Part B payments, serving 438 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1871529081

Sabina WallachM.D.

Hematology-OncologyLa Jolla, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,225

Unique beneficiaries

—

Total services

42,144

Distinct HCPCS

Medicare payment

$539K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

903

Beneficiaries

—

Total drug cost

$824K

Distinct drugs

Brand share

26.0%

Top prescribed drugs

Levothyroxine Sodium97 claims

Anastrozole79 claims

Lorazepam41 claims

Warfarin Sodium36 claims

Apixaban36 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$2K

Payment records

By payment type

Food and Beverage$2K

Education$110

Top paying entities

Food and Beverage$2K

Education$110

REFERRAL NETWORK

Where Sabina Wallach'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). 26 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	221	1,149
Marie Shieh Hematology-Oncology · San Diego, CA	62	594
Kent Thompson Diagnostic Radiology · Rancho Mirage, CA	38	96
Philip Hoang Diagnostic Radiology · La Jolla, CA	32	125
Stephen Moreland Diagnostic Radiology · San Diego, CA	31	70
Michael Kan Nuclear Medicine · La Jolla, CA	28	111
Paul Sylvan Diagnostic Radiology · Rancho Mirage, CA	26	54
Ratana Bhardwaj Diagnostic Radiology · San Diego, CA	25	58
Charles Liu Diagnostic Radiology · La Jolla, CA	24	81
Kevin Ishioka Diagnostic Radiology · La Jolla, CA	23	62
Matthew Lucks Cardiology · Alexandria, VA	22	123
REGENTS OF THE UNIVERSITY OF CALIFORNIA	22	229

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