Elizabeth Rose Grethen, MD
Endocrinology, Diabetes & Metabolism Physician · Carmel, IN
Elizabeth Rose Grethen, MD is an endocrinology, diabetes & metabolism physician with a practice address in Carmel, Indiana, and NPI 1962660522, issued on May 29, 2008. Check the license (Indiana 01065002A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Elizabeth Rose Grethen
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 01065002A IN
Self-reported in NPPES; status is on the state search - Practice location
- 188 W Carmel Dr, Carmel, IN 46032
- Phone
- (317) 660-1322
- Enumerated
- May 29, 2008
- Record last updated
- Jan 16, 2025
- Fax
- (317) 751-5888
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 180 in Indiana → Look up another NPI →
Verify Elizabeth Rose Grethen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01065002ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
3,810 Medicare Part D claims for 517 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 47% of claims.
Most prescribed
- Levothyroxine Sodium402 claims
- Ozempic259 claims
- Jardiance256 claims
- Metformin Hcl Er188 claims
- Alendronate Sodium149 claims
- Lantus Solostar122 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $155.59
7 payments; by number, the most common kind was food and beverage; the largest payer was Insulet Corporation. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Elizabeth Rose Grethen among 180 endocrinology, diabetes & metabolism physician records in Indiana
Elizabeth Rose Grethen, MD is one of 180 endocrinology, diabetes & metabolism physician records with a practice address in Indiana. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 51% of them.
- NPI issued2008 · 51% of these records are older, 39% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2025 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Indiana
There are 180 endocrinology, diabetes & metabolism physician records in Indiana.
All 180 in Indiana → Every provider in Carmel → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- James Anderson, M.D.Carmel, IN 460321982854725
- Zunaira Chaudhry, MDCarmel, IN 460321518288927
- Thomas Hardy, M.D.Carmel, IN 460321619301165
- Tara Myers, MDCarmel, IN 460321598936056
- Rick Schiebinger, M.D.Carmel, IN 460321427285675
- Vishal Sehgal, MDCarmel, IN 460321932270253
- John Krege, M.D.Carmel, IN 460331538524491
- Neha Gavin, MD, MPHFishers, IN 460371528226321
Common questions
What is Elizabeth Rose Grethen, MD's NPI number?
Elizabeth Rose Grethen, MD's National Provider Identifier (NPI) is 1962660522, issued on May 29, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Elizabeth Rose Grethen, MD located?
The NPPES record lists a practice address at 188 W Carmel Dr, Carmel, IN, 46032. Phone: (317) 660-1322. Providers update this record themselves, so call before visiting.
How can I verify Elizabeth Rose Grethen, MD's license?
NPPES lists Indiana license number 01065002A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Elizabeth Rose Grethen, MD prescribe under Medicare Part D?
In 2024, Elizabeth Rose Grethen, MD had 3,810 Medicare Part D claims for 517 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.