PROVIDER PROFILE · NPI 1639317340

Sergei TatishchevM.D.

PathologyLos Angeles, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

954

Unique beneficiaries

—

Total services

2,437

Distinct HCPCS

Medicare payment

$74K

Peer benchmark

Total Medicare services vs. 1,209 Pathology providers in CA — above median (cohort median 1,423).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Sergei Tatishchev'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). 30 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
DIGNITY COMMUNITY CARE	217	308
Kellie Curtis General Surgery · Northridge, CA	69	117
Unilab Corporation Clinical Laboratory · West Hills, CA	65	132
City Of Los Angeles Ambulance Service Provider · Los Angeles, CA	44	54
Somnath Basu Diagnostic Radiology · Riverside, CA	43	68
OLYMPIA HEALTH CARE LLC	32	46
Raluca Arimie Cardiology · West Hills, CA	29	40
HRONEK, IVAN	27	39
Leo Kassabian Cardiology · Encino, CA	26	50
BERMAN, GERALD	24	26
Path Md, Inc. Clinical Laboratory · Los Angeles, CA	22	23
Eric Montoya Physician Assistant · Woodland Hills, CA	21	30

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