Donald Grayson, M.D.
NPI 1841533551 · Psychiatry Physician · Farmington, CT
Donald Grayson, M.D. is a Psychiatry Physician provider in Farmington, CT (NPI 1841533551).
Provider details
- NPI number
- 1841533551
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 11795 (CT)
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
13 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-04-01
- Last updated
- 2013-04-01
Frequently asked questions
- What is Donald Grayson's NPI number?
- Donald Grayson's National Provider Identifier (NPI) is 1841533551, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Grayson's specialty?
- Donald Grayson is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Donald Grayson located?
- Donald Grayson's practice location on file with NPPES is 195 Farmington Avenue, Farmington, CT 06032.
- What is Donald Grayson's phone number?
- The practice phone number listed in the NPPES registry for Donald Grayson is (860) 674-8914.
- Is Donald Grayson's NPI active?
- Yes — Donald Grayson's NPI (1841533551) is active in the NPPES registry as of the last update on 2013-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.