Richard Louis O'Sullivan, M.D.
Psychiatry Physician · Hartford, CT
Richard Louis O'Sullivan, M.D. is a psychiatry physician with a practice address in Hartford, Connecticut, and NPI 1295987287, issued on Oct 21, 2008. Check the license (Connecticut 039030, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Richard Louis O'Sullivan
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 039030 CT
Self-reported in NPPES; status is on the state search - Practice location
- 200 Retreat Avenue, Hartford, CT 06106
- Phone
- (860) 545-7330
- Enumerated
- Oct 21, 2008
- Record last updated
- Feb 28, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicaid ID
- 001390301 CT
- Medicare enrollment
- Enrolled (PECOS I20090403000315); may accept Medicare assignment
- Medical or professional school
- Medical College Of Pennsylvania, 1988
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,174 in Connecticut → Look up another NPI →
Also registered at 200 Retreat Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Luciano Abbatemarco, LCSWClinical Social Worker1891096764
- Adrienne Allen, PSYDClinical Psychologist1598209124
- Sarah Amenta, APRN-BCPsychiatric/Mental Health Nurse Practitioner1750526042
- David Archibald, LCSWClinical Social Worker1023316692
- Jessica Backer Wilde, LCSWClinical Social Worker1275649535
- Sanjay Banerjee, M.D.Psychiatry Physician1467523928
Verify Richard Louis O'Sullivan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 039030Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average psychiatry physician in 2024
703 Medicare Part D claims for 38 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Aripiprazole73 claims
- Clonazepam53 claims
- Venlafaxine Hcl Er44 claims
- Alprazolam41 claims
- Lorazepam39 claims
- Escitalopram Oxalate36 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.
Richard Louis O'Sullivan among 1,174 psychiatry physician records in Connecticut
Richard Louis O'Sullivan, M.D. 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 2008, is newer than 56% of them.
- NPI issued2008 · 56% of these records are older, 39% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated1988 · median 2003 among the 503 with a school on file
- Record last updated2011 · 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).
130 psychiatry physician records list a practice address in Hartford
They are 130 of the 6,317 NPPES records with a practice address in Hartford, and 1,174 psychiatry physician records in Connecticut.
All 1,174 in Connecticut → Every provider in Hartford → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Adrienne Bentman, M.D.Hartford, CT 061061366464463
- Joanna Fogg-Waberski, M.D.Hartford, CT 061061366455511
- John Goethe, M.D.Hartford, CT 061061871506162
- Howard Iger, M.D.Hartford, CT 061061205943735
- William Joughin, M.D.Hartford, CT 061061508877101
- Sergio Mejia, M.D.Hartford, CT 061061932127214
- Adam Mirot, MDHartford, CT 061061366464133
- Arturo Morales, MDHartford, CT 061061366477812
Common questions
What is Richard Louis O'Sullivan, M.D.'s NPI number?
Richard Louis O'Sullivan, M.D.'s National Provider Identifier (NPI) is 1295987287, issued on Oct 21, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Richard Louis O'Sullivan, M.D. located?
The NPPES record lists a practice address at 200 Retreat Avenue, Hartford, CT, 06106. Phone: (860) 545-7330. Providers update this record themselves, so call before visiting.
How can I verify Richard Louis O'Sullivan, M.D.'s license?
NPPES lists Connecticut license number 039030, 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 Richard Louis O'Sullivan, M.D. prescribe under Medicare Part D?
In 2024, Richard Louis O'Sullivan, M.D. had 703 Medicare Part D claims for 38 beneficiaries; 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.