Active NPI
Gregory Lynn Keller, D.O.
- Psychiatry Physician
- Clarinda, IA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychiatry Physician
- License
- 3716
- Practice address
- 220 Essie Davison Dr
Clarinda, IA 51632-2915 - Phone
- (712) 542-8354
- NPI assigned
- Aug 21, 2006
- Sex
- Male
- Sole proprietor
- Yes
Organizations & group practices 16
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Community/Retail Pharmacy
- Atlantic, IA
- NPI 1023755097
-
- Optometrist
- Atlantic, IA
- NPI 1043747280
-
- Medicare Defined Swing Bed Hospital Unit
- Atlantic, IA
- NPI 1134143696
-
- Family Medicine Physician
- Atlantic, IA
- NPI 1316148307
-
- Rural Health Clinic/Center
- Massena, IA
- NPI 1447451331
-
- Rural Health Clinic/Center
- Atlantic, IA
- NPI 1649471699
-
- Rural Health Clinic/Center
- Atlantic, IA
- NPI 1699976696
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
Care Compare profile
Medicare Care Compare- Specialty
- Psychiatry
- Education
- University of Kansas School of Med (KC/Wich/Sal), 2004
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- Cass County Memorial HospitalClarinda Regional Health Center
Practice addresses (Care Compare)
1501 E 10TH St
Atlantic, IA 50022-1936
Phone (712) 243-3250
220 Essie Davison Dr
Clarinda, IA 51632-2915
Phone (712) 542-2176
Hospital & facility affiliations
- Clarinda Regional Health Center
- Cass County Memorial Hospital
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in IA, NE
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20101206000044 | IA | Practitioner - Psychiatry | 8820285760 | Reassigns benefits to 4 organizations |
| I20260130001362 | NE | Practitioner - Psychiatry | 8820285760 | Reassigns benefits to 2 organizations |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 3114 | NE | MD | Social Worker |
| 3716 | IA | MD | Psychiatry Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Memorial Community Hospital Corporation | Current | Accepting new patients | |
| Clarinda Regional Health Center | Current | Accepting new patients | |
| Memorial Community Hospital Corporation | Current | Accepting new patients | |
| Clarinda Regional Health Center | Current | Accepting new patients |
Locations
220 Essie Davison Dr
Clarinda, IA 51632
Phone (712) 542-8330
812 N 22nd St
Blair, NE 68008
Phone (402) 426-4611
Specialties & licenses 2
NPPES NPI Registry| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Psychiatry Physician | 2084P0800X | 3716 | IA | Primary |
| Psychiatry Physician | 2084P0800X | 3114 | NE |
Addresses
NPPES NPI RegistryPrimary practice location
220 Essie Davison Dr
Clarinda, IA 51632-2915
Mailing address
220 Essie Davison Dr
Clarinda, IA 51632-2915
Phone (712) 542-8354
Other identifiers 2
NPPES NPI Registry| Identifier | Type | State | Issuer |
|---|---|---|---|
| 3716 | Other | IA | LICENSE |
| 3114 | Other | NE | LICENSE |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format, last updated by the provider on Jan 26, 2026.
{
"created_epoch": "1156118400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1769385600000",
"number": "1649385287",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "220 ESSIE DAVISON DR",
"city": "CLARINDA",
"state": "IA",
"postal_code": "516322915",
"telephone_number": "712-542-8354"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "220 ESSIE DAVISON DR",
"city": "CLARINDA",
"state": "IA",
"postal_code": "516322915",
"telephone_number": "712-542-8354"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KELLER",
"first_name": "GREGORY",
"middle_name": "LYNN",
"name_prefix": "Dr.",
"credential": "D.O.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2006-08-21",
"last_updated": "2026-01-26",
"certification_date": "2026-01-26",
"status": "A"
},
"taxonomies": [
{
"code": "2084P0800X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Psychiatry",
"state": "IA",
"license": "3716",
"primary": true
},
{
"code": "2084P0800X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Psychiatry",
"state": "NE",
"license": "3114",
"primary": false
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "LICENSE",
"identifier": "3716",
"state": "IA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "LICENSE",
"identifier": "3114",
"state": "NE"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Clarinda, IA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 26, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.