Gregory Allen, M.D.
NPI 1619198603 · Psychiatry Physician · Grosse Pointe Farms, MI
Gregory Allen, M.D. is a Psychiatry Physician provider in Grosse Pointe Farms, MI (NPI 1619198603).
Provider details
- NPI number
- 1619198603
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 4301035384 (MI)
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
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gregory Allen's NPI number?
- Gregory Allen's National Provider Identifier (NPI) is 1619198603, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Allen's specialty?
- Gregory Allen is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Allen located?
- Gregory Allen's practice location on file with NPPES is 119 Kercheval Ave, Grosse Pointe Farms, MI 48236-3696.
- What is Gregory Allen's phone number?
- The practice phone number listed in the NPPES registry for Gregory Allen is (313) 550-6567.
- Is Gregory Allen's NPI active?
- Yes — Gregory Allen's NPI (1619198603) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.