PROVIDER PROFILE · NPI 1962660522

Elizabeth GrethenMD

PRACTICEST. VINCENT OPTICAL, LLCSee all providers at this practice →

EndocrinologyCarmel, INI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

539

Unique beneficiaries

—

Total services

2,735

Distinct HCPCS

Medicare payment

$71K

Peer benchmark

Total Medicare services vs. 98 Endocrinology providers in IN — above median (cohort median 1,371).

PRESCRIBING · PART D · 2024

Total Rx claims

3,427

Beneficiaries

—

Total drug cost

$1.8M

Distinct drugs

Brand share

57.3%

Top prescribed drugs

Levothyroxine Sodium402 claims

Semaglutide259 claims

Empagliflozin256 claims

Metformin Hcl188 claims

Alendronate Sodium149 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$156

Payment records

By payment type

Food and Beverage$156

REFERRAL NETWORK

Where Elizabeth Grethen'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). 5 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ST. VINCENT HOSPITAL & HEALTH CARE CENTER, INC.	92	268
Bruce Waller Cardiology · Indianapolis, IN	33	52
Carrie Parrish Nyekan Nurse Practitioner · Bowling Green, KY	23	37
INDIANA UNIVERSITY HEALTH INC	12	29
Larry Stover Diagnostic Radiology · Indianapolis, IN	12	21

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