Gregory Kellermeyer, M.D.
NPI 1043385396 · Psychiatry Physician · Westminster, CO
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1043385396
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A97506 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 46 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 233 | 64 |
| Quetiapine Fumarate | 205 | 51 |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 170 | 49 |
| Buspirone Hcl | 165 | 35 |
| Mirtazapine | 163 | 42 |
| Lamotrigine | 148 | 40 |
| Sertraline Hcl | 144 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-22
- Last updated
- 2021-04-02
- Certified
- 2021-04-02
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.