PROVIDER PROFILE · NPI 1871606434

Oliver MasonMD

PRACTICEKASEY KIM, M.D. INC.See all providers at this practice →

Internal MedicineCerritos, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

190

Unique beneficiaries

—

Total services

315

Distinct HCPCS

Medicare payment

$23K

Peer benchmark

Total Medicare services vs. 10,499 Internal Medicine providers in CA — below median (cohort median 531).

PRESCRIBING · PART D · 2024

Total Rx claims

246

Beneficiaries

—

Total drug cost

$3K

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Atorvastatin Calcium35 claims

Amlodipine Besylate33 claims

Metformin Hcl33 claims

Omeprazole32 claims

Famotidine32 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$144

Payment records

By payment type

Food and Beverage$144

REFERRAL NETWORK

Where Oliver Mason'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). 15 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
COLLEGE HOSPITAL, INC.	205	743
Dwight Bergquist Psychiatry · Lakewood, CA	84	232
CHLB, LLC	39	146
Manolito Fidel Psychiatry · Torrance, CA	39	306
Firstmed Ambulance Services, Inc. Ambulance Service Provider · Panorama City, CA	33	127
Weiming Chu Psychiatry · Santa Ana, CA	27	101
SHORELINE AMBULANCE COMPANY, LLC	22	61
AMERICARE MEDSERVICES INC.	21	43
CPH HOSPITAL MANAGEMENT LLC	17	46
City Of Los Angeles Ambulance Service Provider · Los Angeles, CA	17	46
Emergency Ambulance Service Inc Ambulance Service Provider · Brea, CA	14	30
Kei-Chuen Lau Psychiatry · Bellflower, CA	12	22

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