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.
- 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
8 nearest psychiatry physician records → All 398 in Iowa → Look up another NPI →
Also registered at 220 Essie Davison Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Michele Bjorn, ARNPNurse Practitioner1679619795
- Katie Burns, ARNPNurse Practitioner1033821269
- Kaitlin Card, ARNPFamily Nurse Practitioner1104795475
Verify Gregory Lynn Keller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 3716Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2 hospital affiliations
- Cass County Memorial HospitalAtlantic, IA · Critical Access Hospitals5 of 5 stars
- 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.
Gregory Lynn Keller among 398 psychiatry physician records in Iowa
Gregory Lynn Keller, D.O. is one of 398 psychiatry physician records with a practice address in Iowa. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 60% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 47% of these records are
- Graduated2004 · median 2010 among the 188 with a school on file
- Record last updated2026 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 psychiatry physician record lists 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 → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Jennifer Lundgren, PMHNPShenandoah, IA 516011104515311
- Ronald Bendorf, M.D.Council Bluffs, IA 515031053464834
- Alfred Ongesa, PMHNP-NPCouncil Bluffs, IA 515031013688530
- Rebecca Petersen, MDCouncil Bluffs, IA 515031306403183
- Harmit Singh, MDCouncil Bluffs, IA 515031891927430
- Deborah Burnett, PMHNP-BCCarroll, IA 514011124986401
- Robert Langenfeld, M.D.Carroll, IA 514011275573875
- Curtis Fredrickson, MDSpirit Lake, IA 513601548532971
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.
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.