Gregory Singleton, M.D.
NPI 1922052836 · Psychiatry Physician · Louisville, KY
Gregory Singleton, M.D. is a Psychiatry Physician provider in Louisville, KY (NPI 1922052836).
Provider details
- NPI number
- 1922052836
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 40043 (KY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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 · 26 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Alprazolam | 54 |
| Quetiapine Fumarate | 50 |
| Diazepam | 37 |
| Sertraline Hcl | 36 |
| Zolpidem Tartrate | 33 |
| Aripiprazole | 33 |
| Duloxetine Hcl | 29 |
| Bupropion Hclbrand: Bupropion Xl | 29 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-22
- Last updated
- 2013-01-29
Frequently asked questions
- What is Gregory Singleton's NPI number?
- Gregory Singleton's National Provider Identifier (NPI) is 1922052836, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Singleton's specialty?
- Gregory Singleton is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Singleton located?
- Gregory Singleton's practice location on file with NPPES is 401 E Chestnut St, Louisville, KY 40202-5700.
- What is Gregory Singleton's phone number?
- The practice phone number listed in the NPPES registry for Gregory Singleton is (502) 813-6627.
- Is Gregory Singleton's NPI active?
- Yes — Gregory Singleton's NPI (1922052836) is active in the NPPES registry as of the last update on 2013-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.