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Jonathan Greenfield, M.D.
NPI 1336479062 · Psychiatry Physician · Newtown, CT
Jonathan Greenfield, M.D. is a Psychiatry Physician provider in Newtown, CT (NPI 1336479062).
Provider details
- NPI number
- 1336479062
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 028932 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(84/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
166 Brushy Hill Rd
Newtown, CT 06470-2520
Phone: (203) 470-6655
Street-level locationGet directions
Mailing address
166 Brushy Hill Rd
Newtown, CT 06470-2520
Registry dates
- Enumerated
- 2009-12-31
- Last updated
- 2009-12-31
Frequently asked questions
- What is Jonathan Greenfield's NPI number?
- Jonathan Greenfield's National Provider Identifier (NPI) is 1336479062, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Greenfield's specialty?
- Jonathan Greenfield is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Greenfield located?
- Jonathan Greenfield's practice location on file with NPPES is 166 Brushy Hill Rd, Newtown, CT 06470-2520.
- What is Jonathan Greenfield's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Greenfield is (203) 470-6655.
- Is Jonathan Greenfield's NPI active?
- Yes — Jonathan Greenfield's NPI (1336479062) is active in the NPPES registry as of the last update on 2009-12-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.