What is Roger Johnson's specialty?

Roger Johnson (NPI 1093949687) is a Medicare-billing provider whose primary specialty is Ophthalmology in Los Angeles, CA.

Where does Roger Johnson practice?

Roger Johnson practices in Los Angeles, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1093949687.

How much does Medicare pay Roger Johnson?

Roger Johnson (NPI 1093949687) received approximately $258K in total Medicare Part B payments, serving 788 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1093949687

Roger JohnsonM.D.

PRACTICEREGENTS OF THE UNIVERSITY OF CALIFORNIASee all providers at this practice →

OphthalmologyLos Angeles, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,750

Unique beneficiaries

—

Total services

2,265

Distinct HCPCS

Medicare payment

$226K

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

1,564

Beneficiaries

—

Total drug cost

$117K

Distinct drugs

Brand share

40.0%

Top prescribed drugs

Prednisolone Acetate427 claims

Moxifloxacin Hcl311 claims

Latanoprost192 claims

Dorzolamide Hcl/Timolol Maleat104 claims

Timolol Maleate86 claims

QUALITY · MIPS · 2024

Final MIPS score

90.5

Quality

88.7

Cost

77.5

Improvement activities

40.0

Promoting interop.

99.0

Payment adjustment

0.65%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$214

Payment records

By payment type

Food and Beverage$214

Top paying entities

Food and Beverage$214

REFERRAL NETWORK

Where Roger Johnson'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 · 36 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	57	229
Thang Le Anesthesiology · Los Angeles, CA	54	112
UNIVERSAL HEALTH SERVICES OF RANCHO SPRINGS INC	23	41
Frederick Wood Cardiology · Murrieta, CA	21	109
Timothy Coen Family Practice · Fallbrook, CA	21	103
PATEL, PURNIMA	17	40
William Kelly Diagnostic Radiology · Palm Desert, CA	17	27
Richard Reynolds Internal Medicine · Murrieta, CA	16	69
Tchaiko Parris Diagnostic Radiology · Green Bay, WI	15	44
Lance Reinherz Cardiology · Murrieta, CA	15	88
Peter Jenson Family Practice · Fallbrook, CA	15	92
Philip Brodak Urology · Murrieta, CA	14	77

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Laboratory Corporation Of America Clinical Laboratory · San Diego, CA	151	521
Inland Eye Specialists A Medical Corp Ambulatory Surgical Center · Murrieta, CA	137	1,556
Thang Le Anesthesiology · Los Angeles, CA	96	618
Unilab Corporation Clinical Laboratory · West Hills, CA	45	96
UNIVERSAL HEALTH SERVICES OF RANCHO SPRINGS INC	27	44
Timothy Coen Family Practice · Fallbrook, CA	24	82
SPEELMAN, PATRICIA	23	34
CALIFORNIA LABORATORY SCIENCES LLC	21	64
TEMECULA VALLEY HOSPITAL INC	19	58
Richard Reynolds Internal Medicine · Murrieta, CA	19	80
Frederick Wood Cardiology · Murrieta, CA	18	86
Tchaiko Parris Diagnostic Radiology · Green Bay, WI	18	56

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