What is Chee Tan's specialty?

Chee Tan (NPI 1346263357) is a Medicare-billing provider whose primary specialty is Ophthalmology in Pasadena, CA.

Where does Chee Tan practice?

Chee Tan practices in Pasadena, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1346263357.

How much does Medicare pay Chee Tan?

Chee Tan (NPI 1346263357) received approximately $279K in total Medicare Part B payments, serving 721 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1346263357

Chee TanM.D., PH.D.

OphthalmologyPasadena, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,035

Unique beneficiaries

—

Total services

2,914

Distinct HCPCS

Medicare payment

$243K

Peer benchmark

Total Medicare services vs. 2,144 Ophthalmology providers in CA — above median (cohort median 1,859).

PRESCRIBING · PART D · 2024

Total Rx claims

1,477

Beneficiaries

—

Total drug cost

$60K

Distinct drugs

Brand share

19.7%

Top prescribed drugs

Latanoprost550 claims

Dorzolamide Hcl/Timolol Maleat164 claims

Prednisolone Acetate157 claims

Ofloxacin127 claims

Diclofenac Sodium122 claims

QUALITY · MIPS · 2024

Final MIPS score

100.0

Quality

100.0

Cost

63.2

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

1.05%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$355

Payment records

By payment type

Food and Beverage$355

Top paying entities

Food and Beverage$355

REFERRAL NETWORK

Where Chee Tan'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). 1 inbound referrers · 5 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	30	147

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Arcadia Outpatient Surgery Center Lp Ambulatory Surgical Center · Arcadia, CA	40	91
Unilab Corporation Clinical Laboratory · West Hills, CA	23	124
Stephen Fernandez Anesthesiology · Arcadia, CA	14	33
Patrick Raymond Anesthesiology · Arcadia, CA	14	17
Laboratory Corporation Of America Clinical Laboratory · San Diego, CA	11	44

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