What is Oliver Mason's specialty?

Oliver Mason (NPI 1871606434) is a Medicare-billing provider whose primary specialty is Internal Medicine in Cerritos, CA.

Where does Oliver Mason practice?

Oliver Mason practices in Cerritos, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1871606434.

How much does Medicare pay Oliver Mason?

Oliver Mason (NPI 1871606434) received approximately $24K in total Medicare Part B payments, serving 114 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

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

Top paying entities

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events