NPPES file of Aug 9, 2026

Gregory Lynn Keller, D.O.

Psychiatry Physician · Clarinda, IA

Gregory Lynn Keller, D.O. is a psychiatry physician with a practice address in Clarinda, Iowa, and NPI 1649385287, issued on Aug 21, 2006. Check the license (Iowa 3716, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1649385287
Name
Gregory Lynn Keller
Credential
D.O.
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
3716 IA
3114 NE
Self-reported in NPPES; status is on the state search
Practice location
220 Essie Davison Dr, Clarinda, IA 51632
Phone
(712) 542-8354
Enumerated
Aug 21, 2006
Record last updated
Jan 26, 2026
Medicare enrollment
Enrolled (PECOS I20260130001362); accepts Medicare assignment
Medical or professional school
University Of Kansas School Of Med (Kc/Wich/Sal), 2004
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 220 Essie Davison Dr

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

  1. Melisa Baier, RD, LDRegistered Dietitian1043676943
  2. Theophile Barley, M.D.Family Medicine Physician1962643478
  3. Marlene Birkholtz-Wier, D.O.Family Medicine Physician1881663847
  4. Michele Bjorn, ARNPNurse Practitioner1679619795
  5. Katie Burns, ARNPNurse Practitioner1033821269
  6. Kaitlin Card, ARNPFamily Nurse Practitioner1104795475

Verify Gregory Lynn Keller in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license 3716    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 Iowa license search

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2 hospital affiliations

  1. Cass County Memorial HospitalAtlantic, IA · Critical Access Hospitals5 of 5 stars
  2. Clarinda Regional Health CenterClarinda, IA · Critical Access Hospitals4 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

1 psychiatry physician records list a practice address in Clarinda

They are 1 of the 115 NPPES records with a practice address in Clarinda, and 398 psychiatry physician records in Iowa.

All 398 in Iowa → Every provider in Clarinda →

Other psychiatry physician records in Iowa

  1. Sandra Abramoff, M.D.Coralville, IA1952519993
  2. Nesrin Abu Ata, M.D.Sioux City, IA1528297660
  3. Brigid Adviento, MDIowa City, IA1265924849
  4. Mohammad Afridi, MDWaterloo, IA1417093071
  5. Alexandra Agostini, MDDes Moines, IA1619662103
  6. Paige Ahlsten, DOIowa City, IA1417895590
  7. Raja Akbar, MDWaterloo, IA1073547105
  8. Nadia Al-Guboori, MDIowa City, IA1225215601
  9. Aya Al-Kailani, MDDes Moines, IA1316625932
  10. James Amos, MDIowa City, IA1972573921

Common questions

What is Gregory Lynn Keller, D.O.'s NPI number?

Gregory Lynn Keller, D.O.'s National Provider Identifier (NPI) is 1649385287, issued on Aug 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Lynn Keller, D.O. located?

The NPPES record lists a practice address at 220 Essie Davison Dr, Clarinda, IA, 51632. Phone: (712) 542-8354. Providers update this record themselves, so call before visiting.

How can I verify Gregory Lynn Keller, D.O.'s license?

NPPES lists Iowa license number 3716, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.