What is Boris Ratiner's specialty?

Boris Ratiner (NPI 1821001496) is a Medicare-billing provider whose primary specialty is Rheumatology in Tarzana, CA.

Where does Boris Ratiner practice?

Boris Ratiner practices in Tarzana, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1821001496.

How much does Medicare pay Boris Ratiner?

Boris Ratiner (NPI 1821001496) received approximately $1.9M in total Medicare Part B payments, serving 746 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1821001496

Boris RatinerM.D.

PRACTICEBORIS D RATINER, MD, INCSee all providers at this practice →

RheumatologyTarzana, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

13,727

Unique beneficiaries

—

Total services

120,382

Distinct HCPCS

Medicare payment

$1.4M

Peer benchmark

Total Medicare services vs. 530 Rheumatology providers in CA — top quintile (cohort median 1,833).

PRESCRIBING · PART D · 2024

Total Rx claims

1,791

Beneficiaries

—

Total drug cost

$2.3M

Distinct drugs

Brand share

35.8%

Top prescribed drugs

Methotrexate Sodium227 claims

Prednisone172 claims

Hydroxychloroquine Sulfate117 claims

Leflunomide113 claims

Celecoxib97 claims

QUALITY · MIPS · 2024

Final MIPS score

85.8

Quality

94.4

Cost

57.3

Improvement activities

40.0

Promoting interop.

89.0

Payment adjustment

0.46%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$5K

Payment records

264

By payment type

Food and Beverage$5K

Education$93

Top paying entities

Food and Beverage$5K

Education$93

REFERRAL NETWORK

Where Boris Ratiner'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). 65 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	249	1,531
Jenny Oh Rheumatology · Tarzana, CA	173	1,572
Prashant Chawla Diagnostic Radiology · Chicago, IL	84	270
Luis Gonzales Physical Therapist in Private Practice · Glendale, CA	71	618
WEST HILLS HOSPITAL	63	253
DIGNITY COMMUNITY CARE	62	254
WEST COAST CLINICAL LABORATORIES, INC.	51	220
City Of Los Angeles Ambulance Service Provider · Los Angeles, CA	50	133
Eli Bendavid Diagnostic Radiology · Tarzana, CA	42	138
Larisa Magid Physician Assistant · Tarzana, CA	41	114
Farhad Houriani Diagnostic Radiology · North Hollywood, CA	38	300
Jack Chen Diagnostic Radiology · Tarzana, CA	37	167

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