NPPES file of Aug 9, 2026

Carolyn Warner Greer, M.D.

Addiction Medicine (Psychiatry & Neurology) Physician · Fort Wayne, IN

Carolyn Warner Greer, M.D. is an addiction medicine (psychiatry & neurology) physician with a practice address in Fort Wayne, Indiana, and NPI 1568458990, issued on Sep 21, 2005. Check the license (Indiana 01047242A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1568458990
Name
Carolyn Warner Greer
Credential
M.D.
Primary taxonomy
Addiction Medicine (Psychiatry & Neurology) Physician 2084A0401X
License numbers
01047242A IN
01047242 IN
Self-reported in NPPES; status is on the state search
Practice location
1415 Directors Row, Fort Wayne, IN 46808
Phone
(126) 047-1935
Enumerated
Sep 21, 2005
Record last updated
Sep 5, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicaid ID
200281520 IN
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1415 Directors Row

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lilioza Gzyl, MDPediatrics Physician1184715567

Verify Carolyn Warner Greer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Licensing Board of Indiana
    Search for license 01047242A
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Indiana license search

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22% more Medicare Part D claims than the average addiction medicine (psychiatry & neurology) physician in 2024

1,063 Medicare Part D claims for 83 beneficiaries, against an average of 870 among the 264 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Carolyn Greer1,063
  2. Specialty average870

Most prescribed

  1. Buprenorphine-Naloxone240 claims
  2. Buspirone Hcl55 claims
  3. Gabapentin55 claims
  4. Trazodone Hcl45 claims
  5. Bupropion Xl44 claims
  6. Alprazolam38 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: $673.23

23 payments; by number, the most common kind was food and beverage; the largest payer was Axsome Therapeutics, Inc. The 142 providers of this specialty with any payment received $4,513.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Carolyn Greer$673.23
  2. Specialty average$4,513.66

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Addiction Medicine (Psychiatry & Neurology) Physician providers in Indiana

There are 5 addiction medicine (psychiatry & neurology) physician records in Indiana.

The 4 addiction medicine (psychiatry & neurology) physician records with the nearest ZIP codes

  1. Brion Bertsch, M.D.Fairmount, IN 469281487660981
  2. Nick BroviakIndianapolis, IN 462601609667948
  3. Alexander Thomas, MDIndianapolis, IN 462081083272645
  4. Dheeraj RainaIndianapolis, IN 462041881768950

Common questions

What is Carolyn Warner Greer, M.D.'s NPI number?

Carolyn Warner Greer, M.D.'s National Provider Identifier (NPI) is 1568458990, issued on Sep 21, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Carolyn Warner Greer, M.D. located?

The NPPES record lists a practice address at 1415 Directors Row, Fort Wayne, IN, 46808. Phone: (126) 047-1935. Providers update this record themselves, so call before visiting.

How can I verify Carolyn Warner Greer, M.D.'s license?

NPPES lists Indiana license number 01047242A, 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 Carolyn Warner Greer, M.D. prescribe under Medicare Part D?

In 2024, Carolyn Warner Greer, M.D. had 1,063 Medicare Part D claims for 83 beneficiaries; the average among addiction medicine (psychiatry & neurology) physician prescribers was 870. 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.