PROVIDER PROFILE · NPI 1255442505

Nick KarahaliosMD

PRACTICESAN CLEMENTE INTERNAL MEDICAL GROUP INC.See all providers at this practice →

Internal MedicineSan Clemente, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

536

Unique beneficiaries

—

Total services

1,427

Distinct HCPCS

Medicare payment

$97K

Peer benchmark

Total Medicare services vs. 10,499 Internal Medicine providers in CA — top quintile (cohort median 531).

PRESCRIBING · PART D · 2024

Total Rx claims

1,418

Beneficiaries

—

Total drug cost

$116K

Distinct drugs

Brand share

19.1%

Top prescribed drugs

Rosuvastatin Calcium78 claims

Tamsulosin Hcl76 claims

Zolpidem Tartrate75 claims

Levothyroxine Sodium72 claims

Amlodipine Besylate66 claims

QUALITY · MIPS · 2024

Final MIPS score

90.4

Quality

98.1

Cost

70.6

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

0.65%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$53

Payment records

By payment type

Food and Beverage$53

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (5)

Home health agency

Hospice

Hospital

Hospital

Nursing home

REFERRAL NETWORK

Where Nick Karahalios'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
WEST COAST CLINICAL LABORATORIES, INC.	34	226
SADDLEBACK MEMORIAL MEDICAL CENTER	27	179
Steven Cullen Internal Medicine · San Clemente, CA	25	109

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
WEST COAST CLINICAL LABORATORIES, INC.	57	364
SADDLEBACK MEMORIAL MEDICAL CENTER	32	251
Laboratory Corporation Of America Clinical Laboratory · San Diego, CA	31	165
MEMORIALCARE IMAGING CENTER AT SAN CLEMENTE, LLC	26	97
Steven Cullen Internal Medicine · San Clemente, CA	24	80
Daniel Lamont Cardiology · Laguna Hills, CA	19	154
Gus Gialamas Orthopedic Surgery · San Clemente, CA	19	123

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