PROVIDER PROFILE · NPI 1740279264

Philip Chatham

PRACTICETHE ONCOLOGY INSTITUTE CA, A PROFESSIONAL CORPORATIONSee all providers at this practice →

Hematology-OncologySan Gabriel, CAI

MEDICARE UTILIZATION · PART B · 2024

No data available for this provider in 2024.

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 Philip Chatham'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). 42 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	97	768
PROVIDENCE HEALTH SYSTEM - SOUTHERN CALIFORNIA	84	349
Richard Goldman Diagnostic Radiology · Santa Monica, CA	54	142
Sheila Vasan Hematology-Oncology · Van Nuys, CA	50	172
Omar Sahagun Diagnostic Radiology · Los Angeles, CA	47	187
David Broumandi Diagnostic Radiology · Mission Hills, CA	42	202
GADOWSKI, DOUGLAS	41	103
Henry Shih Diagnostic Radiology · Los Angeles, CA	38	169
Harold Quan Cardiology · Newhall, CA	36	112
WILEN, BARRY	36	152
Shendee Teng Diagnostic Radiology · San Marino, CA	30	153
City Of Los Angeles Ambulance Service Provider · Los Angeles, CA	28	49

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