PROVIDER PROFILE · NPI 1649296971

Robert WithamMD

PRACTICEWESTERN WASHINGTON ONCOLOGY PLLCSee all providers at this practice →

Internal MedicineOlympia, WAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

607

Unique beneficiaries

—

Total services

5,383

Distinct HCPCS

Medicare payment

$155K

Peer benchmark

Total Medicare services vs. 1,650 Internal Medicine providers in WA — top quintile (cohort median 497).

PRESCRIBING · PART D · 2024

Total Rx claims

830

Beneficiaries

—

Total drug cost

$747K

Distinct drugs

Brand share

27.7%

Top prescribed drugs

Famotidine84 claims

Levothyroxine Sodium76 claims

Prednisone66 claims

Amlodipine Besylate58 claims

Methotrexate Sodium47 claims

QUALITY · MIPS · 2024

Final MIPS score

0.0

Quality

0.0

Cost

0.0

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

-9.00%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$77

Payment records

By payment type

Food and Beverage$77

REFERRAL NETWORK

Where Robert Witham'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). 16 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
CLALLAM COUNTY PUBLIC HOSPITAL DISTRICT 2	224	2,143
SEQUIM SAME DAY SURGERY INC	68	109
Michael Fishman Diagnostic Radiology · Lynnwood, WA	51	147
JAMESTOWN S'KLALLAM TRIBE	37	117
Edward Sessions Diagnostic Radiology · Lynnwood, WA	33	79
Danny Addison Family Practice · Port Angeles, WA	24	207
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Seattle, WA	23	92
Laboratory Corporation Of America Clinical Laboratory · Seattle, WA	22	142
Donald Manuele Family Practice · Sequim, WA	17	87
Michael Clancy Family Practice · Port Angeles, WA	16	138
Alexander Pan Cardiology · Issaquah, WA	14	52
Northwest Pathology Pllc Clinical Laboratory · Bellingham, WA	12	32

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