What is Elizabeth Grethen's specialty?

Elizabeth Grethen (NPI 1962660522) is a Medicare-billing provider whose primary specialty is Endocrinology in Carmel, IN.

Where does Elizabeth Grethen practice?

Elizabeth Grethen practices in Carmel, IN, based on the location reported in the CMS Medicare provider datasets for NPI 1962660522.

How much does Medicare pay Elizabeth Grethen?

Elizabeth Grethen (NPI 1962660522) received approximately $72K in total Medicare Part B payments, serving 277 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

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

Top paying entities

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