What is Mark Barak's specialty?

Mark Barak (NPI 1467594838) is a Medicare-billing provider whose primary specialty is Ophthalmology in La Verne, CA.

Where does Mark Barak practice?

Mark Barak practices in La Verne, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1467594838.

How much does Medicare pay Mark Barak?

Mark Barak (NPI 1467594838) received approximately $245K in total Medicare Part B payments, serving 264 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1467594838

Mark BarakMD

OphthalmologyLa Verne, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,025

Unique beneficiaries

—

Total services

4,074

Distinct HCPCS

Medicare payment

$214K

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

2,485

Beneficiaries

—

Total drug cost

$57K

Distinct drugs

Brand share

43.5%

Top prescribed drugs

Latanoprost627 claims

Tobramycin/Dexamethasone562 claims

Dorzolamide Hcl/Timolol Maleat399 claims

Prednisolone Acetate305 claims

Ketorolac Tromethamine242 claims

QUALITY · MIPS · 2024

Final MIPS score

75.0

Quality

0.0

Cost

0.0

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

0.00%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$626

Payment records

By payment type

Food and Beverage$626

Top paying entities

Food and Beverage$626

REFERRAL NETWORK

Where Mark Barak'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). 3 inbound referrers · 7 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
POMONA VALLEY HOSPITAL MEDICAL CENTER	59	160
Unilab Corporation Clinical Laboratory · West Hills, CA	31	62
GARG, NALINI	17	26

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
POMONA VALLEY HOSPITAL MEDICAL CENTER	54	138
Laboratory Corporation Of America Clinical Laboratory · San Diego, CA	29	63
Casa Colina Surgery Center Llc Ambulatory Surgical Center · Pomona, CA	27	71
Unilab Corporation Clinical Laboratory · West Hills, CA	19	54
GARG, NALINI	17	29
Luis Perez Family Practice · Pomona, CA	12	22
Sergio Gomez Family Practice · Pomona, CA	12	29

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