Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Gregory Timothy Ellermann, PHD
Psychologist in Leavenworth, KS · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1801991195
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Registry record
Entity type Individual (Type 1)
Name Dr. Gregory Timothy Ellermann
Credential PHD
Sex Male
Practice address 3515 S 4th St, Professional Association, Leavenworth, KS, 66048
Phone (913) 651-8415
Fax (913) 772-8580
Enumeration date Sep 13, 2006
Last updated in NPPES Oct 3, 2008
Taxonomy & licenses
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 043080 | Other | KS | BCBS OF KANSAS |
| 7030764 | Other | - | AETNA |
| 004517 | Other | - | BCBS OF KANSAS GROUP |
| 32816022 | Other | KS | KANSAS CITY BCBS |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does Gregory Ellermann practice?
The practice location on file with NPPES is in Leavenworth, KS. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Gregory Ellermann?
The National Provider Identifier (NPI) for Gregory Ellermann is 1801991195, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Judith Johnson Psychiatric/Mental Health Nurse Practitioner · Leavenworth, KS NPI 1962458182 Leif Leaf Psychologist · Leavenworth, KS NPI 1336244631 Jacqueline Pfeifer Psychologist · Leavenworth, KS NPI 1710082078 Man Anand Psychiatry Physician · Leavenworth, KS NPI 1194811281 Annalise Tinker Professional Counselor · Leavenworth, KS NPI 1033729660
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-03.