PROVIDER PROFILE · NPI 1881811008

Sabrina WitherbyM.D.

Hematology-OncologyProvidence, RII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

212

Unique beneficiaries

—

Total services

309

Distinct HCPCS

Medicare payment

$23K

Peer benchmark

Total Medicare services vs. 46 Hematology-Oncology providers in RI — below median (cohort median 408).

PRESCRIBING · PART D · 2024

Total Rx claims

512

Beneficiaries

—

Total drug cost

$1.3M

Distinct drugs

Brand share

16.8%

Top prescribed drugs

Letrozole211 claims

Anastrozole70 claims

Dexamethasone53 claims

Abemaciclib38 claims

Ondansetron Hcl33 claims

QUALITY · MIPS · 2024

Final MIPS score

83.7

Quality

65.3

Cost

71.0

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.37%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Sabrina Witherby'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). 11 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MEMORIAL HOSPITAL	184	2,871
Aamir Ahmad Diagnostic Radiology · Fall River, MA	28	103
THE MIRIAM HOSPITAL	20	116
Alice Kim Cardiology · Halfmoon, NY	18	49
WOMEN & INFANTS HOSPITAL OF RHODE ISLAND	17	605
David Rowe Diagnostic Radiology · Warwick, RI	15	36
Christina Pinto Diagnostic Radiology · Providence, RI	15	49
Hemali Desai Diagnostic Radiology · Boston, MA	13	33
Christine Emmick General Surgery · Providence, RI	13	80
Ali Akhtar Internal Medicine · Providence, RI	11	53
Mazen Al-Qadi Pulmonary Disease · Pittsburgh, PA	11	47

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