What is Annie Chan's specialty?

Annie Chan (NPI 1518129956) is a Medicare-billing provider whose primary specialty is Ophthalmology in Oklahoma City, OK.

Where does Annie Chan practice?

Annie Chan practices in Oklahoma City, OK, based on the location reported in the CMS Medicare provider datasets for NPI 1518129956.

How much does Medicare pay Annie Chan?

Annie Chan (NPI 1518129956) received approximately $83K in total Medicare Part B payments, serving 223 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1518129956

Annie ChanM.D.

OphthalmologyOklahoma City, OKI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

628

Unique beneficiaries

—

Total services

918

Distinct HCPCS

Medicare payment

$67K

Peer benchmark

Total Medicare services vs. 158 Ophthalmology providers in OK — bottom quintile (cohort median 2,217).

PRESCRIBING · PART D · 2024

Total Rx claims

423

Beneficiaries

—

Total drug cost

$88K

Distinct drugs

Brand share

44.4%

Top prescribed drugs

Prednisolone Acetate60 claims

Latanoprost54 claims

Moxifloxacin Hcl43 claims

Cyclosporine36 claims

Timolol Maleate34 claims

QUALITY · MIPS · 2024

Final MIPS score

88.5

Quality

90.0

Cost

75.1

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

0.57%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$1K

Payment records

By payment type

Food and Beverage$1K

Top paying entities

Food and Beverage$1K

REFERRAL NETWORK

Where Annie Chan'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). 5 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Lee Carlisle Anesthesiology · San Antonio, TX	39	131
WHITE, LINDA	28	83
ZAYAC, EDWARD	16	20
Elena Geraymovych Ophthalmology · Reno, NV	16	36
Kundandeep Nagi Ophthalmology · San Antonio, TX	11	19

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