John Chardavoyne, MD
Psychiatry Physician · Middletown, CT
John Chardavoyne, MD is a psychiatry physician with a practice address in Middletown, Connecticut, and NPI 1538206800, issued on Jan 30, 2007. Check the license (Connecticut 048541, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- John Chardavoyne
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 048541 CT
Self-reported in NPPES; status is on the state search - Practice location
- 213 Court St FL 9, Middletown, CT 06457
- Phone
- (203) 204-8872
- Enumerated
- Jan 30, 2007
- Record last updated
- Nov 26, 2025
- Fax
- (305) 675-7742
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,174 in Connecticut → Look up another NPI →
Verify John Chardavoyne in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 048541Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average psychiatry physician in 2024
19 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
John Chardavoyne among 1,174 psychiatry physician records in Connecticut
John Chardavoyne, MD is one of 1,174 psychiatry physician records with a practice address in Connecticut. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 44% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2025 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
59 psychiatry physician records list a practice address in Middletown
They are 59 of the 1,590 NPPES records with a practice address in Middletown, and 1,174 psychiatry physician records in Connecticut.
All 1,174 in Connecticut → Every provider in Middletown → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- George Amilo, MDMiddletown, CT 064571700852787
- Marc Aronson, M.D.Middletown, CT 064571275632994
- Victoria Dreisbach, D.O.Middletown, CT 064571205912235
- Stuart Forman, M.D.Middletown, CT 064571437193638
- Jeffrey Gottlieb, M.D.Middletown, CT 064571043292980
- Richard Ketai, M.D.Middletown, CT 064571003898172
- Halevoor Mahalingaiah, MDMiddletown, CT 064571598830804
- Erlinda Mercado, M.D.Middletown, CT 064571790898278
Common questions
What is John Chardavoyne, MD's NPI number?
John Chardavoyne, MD's National Provider Identifier (NPI) is 1538206800, issued on Jan 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Chardavoyne, MD located?
The NPPES record lists a practice address at 213 Court St FL 9, Middletown, CT, 06457. Phone: (203) 204-8872. Providers update this record themselves, so call before visiting.
How can I verify John Chardavoyne, MD's license?
NPPES lists Connecticut license number 048541, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Chardavoyne, MD prescribe under Medicare Part D?
In 2024, John Chardavoyne, MD had 19 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.