What is Diane Karalekas's specialty?

Diane Karalekas (NPI 1992742944) is a Medicare-billing provider whose primary specialty is Ophthalmology in Marlborough, MA.

Where does Diane Karalekas practice?

Diane Karalekas practices in Marlborough, MA, based on the location reported in the CMS Medicare provider datasets for NPI 1992742944.

How much does Medicare pay Diane Karalekas?

Diane Karalekas (NPI 1992742944) received approximately $168K in total Medicare Part B payments, serving 933 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1992742944

Diane KaralekasM.D.

OphthalmologyMarlborough, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,518

Unique beneficiaries

—

Total services

2,733

Distinct HCPCS

Medicare payment

$165K

Peer benchmark

Total Medicare services vs. 558 Ophthalmology providers in MA — above median (cohort median 1,976).

PRESCRIBING · PART D · 2024

Total Rx claims

1,653

Beneficiaries

—

Total drug cost

$119K

Distinct drugs

Brand share

19.2%

Top prescribed drugs

Latanoprost720 claims

Dorzolamide Hcl/Timolol Maleat205 claims

Timolol Maleate166 claims

Brimonidine Tartrate160 claims

Dorzolamide Hcl81 claims

QUALITY · MIPS · 2024

Final MIPS score

70.0

Quality

40.0

Cost

0.0

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

-0.60%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Diane Karalekas'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). 17 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MARLBOROUGH HOSPITAL CORP	182	335
Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA	122	245
Lalita Matta Internal Medicine · Marlborough, MA	27	44
Andrew Cocchiarella Anesthesiology · Worcester, MA	23	50
Jose Flores Cardillo Internal Medicine · Marlborough, MA	21	51
Michele Goh Internal Medicine · Hudson, MA	20	40
Jaclyn Vonbleicken Certified Registered Nurse Anesthetist (CRNA) · Worcester, MA	20	38
Connie Drexler Internal Medicine · Northborough, MA	16	28
Mohamed Zaki Refaat Cardiology · Fort Collins, CO	15	22
Vinay Kumar Internal Medicine · Marlborough, MA	15	33
Judson Siegel Podiatry · Marlborough, MA	14	17
Clifford Risk Pulmonary Disease · Marlborough, MA	14	88

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