What is Charles Keller's specialty?

Charles Keller (NPI 1558324392) is a Medicare-billing provider whose primary specialty is Ophthalmology in Orange, CA.

Where does Charles Keller practice?

Charles Keller practices in Orange, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1558324392.

How much does Medicare pay Charles Keller?

Charles Keller (NPI 1558324392) received approximately $148K in total Medicare Part B payments, serving 424 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1558324392

Charles KellerM.D.

OphthalmologyOrange, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,274

Unique beneficiaries

—

Total services

1,558

Distinct HCPCS

Medicare payment

$138K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

990

Beneficiaries

—

Total drug cost

$90K

Distinct drugs

Brand share

39.9%

Top prescribed drugs

Latanoprost324 claims

Prednisolone Acetate197 claims

Polymyxin B Sulf/Trimethoprim109 claims

Dorzolamide Hcl/Timolol Maleat98 claims

Bromfenac Sodium53 claims

QUALITY · MIPS · 2024

Final MIPS score

80.7

Quality

93.9

Cost

41.7

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.24%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$103

Payment records

By payment type

Food and Beverage$103

Top paying entities

Food and Beverage$103

REFERRAL NETWORK

Where Charles Keller'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). 9 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	142	284
Surgicare Of La Veta Ltd Ambulatory Surgical Center · Orange, CA	21	30
Newport Bay Surgery Center, Llc Ambulatory Surgical Center · Newport Beach, CA	20	39
Mark Rodrigues Internal Medicine · Orange, CA	17	29
David Karlin Diagnostic Radiology · Orange, CA	15	21
Thomas Hwang Internal Medicine · Tustin, CA	12	23
HARRIS HISTOLOGY SERVICES	12	14
Richard Cho Interventional Radiology · Orange, CA	11	13
Mary Harward Internal Medicine · Orange, CA	11	24

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