John Chardavoyne, MD
NPI 1538206800 · Psychiatry Physician · Middletown, CT
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Chardavoyne, MD is a Psychiatry Physician provider in Middletown, CT (NPI 1538206800).
Provider details
- NPI number
- 1538206800
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 048541 (CT)
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
- 2007-01-30
- Last updated
- 2025-11-26
- Certified
- 2025-11-26
Frequently asked questions
- What is John Chardavoyne's NPI number?
- John Chardavoyne's National Provider Identifier (NPI) is 1538206800, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Chardavoyne's specialty?
- John Chardavoyne is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is John Chardavoyne located?
- John Chardavoyne's practice location on file with NPPES is 213 Court St Fl 9, Middletown, CT 06457-3346.
- What is John Chardavoyne's phone number?
- The practice phone number listed in the NPPES registry for John Chardavoyne is (203) 204-8872.
- Does John Chardavoyne accept Medicare?
- John Chardavoyne is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Chardavoyne's NPI active?
- Yes — John Chardavoyne's NPI (1538206800) is active in the NPPES registry as of the last update on 2025-11-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.