Catherine O'Conor Adams, MD
Hospice and Palliative Medicine (Internal Medicine) Physician · New Haven, CT
Catherine O'Conor Adams, MD is a hospice and palliative medicine (internal medicine) physician with a practice address in New Haven, Connecticut, and NPI 1851666192, issued on Mar 20, 2012. Check the license on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Catherine O'Conor Adams
- Credential
- MD
- Primary taxonomy
- Hospice and Palliative Medicine (Internal Medicine) Physician 207RH0002X
- License number
- 284115 NY
Self-reported in NPPES; status is on the state search - Practice location
- 20 York St, New Haven, CT 06510
- Phone
- (203) 688-4242
- Enumerated
- Mar 20, 2012
- Record last updated
- Nov 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20161025000596); accepts Medicare assignment
- Medical or professional school
- University Of Connecticut School Of Medicine, 2012
- Entity
- Type 1 · individual
8 nearest hospice and palliative medicine (internal medicine) physician records → All 29 in Connecticut → Look up another NPI →
Also registered at 20 York St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cyrena Abbasi, MDStudent in an Organized Health Care Education/Training Program1609703289
- Ali Abboud, MD, MBAStudent in an Organized Health Care Education/Training Program1942943097
- Basil Abdalla, MDStudent in an Organized Health Care Education/Training Program1154905057
- Jasmina AbdallaStudent in an Organized Health Care Education/Training Program1700638590
- Sarah AbdallahPsychiatry Physician1740800952
- Usama Abdelghany, PHARM DOncology Pharmacist1548827843
Verify Catherine O'Conor Adams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average hospice and palliative medicine (internal medicine) physician in 2024
42 Medicare Part D claims for 26 beneficiaries, against an average of 741 among the 1,607 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
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.
Bills Medicare through one group practice
- St. Peter's Health Partners Medical Associates, P.C.Troy, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine O'Conor Adams among 29 hospice and palliative medicine (internal medicine) physician records in Connecticut
Catherine O'Conor Adams, MD is one of 29 hospice and palliative medicine (internal medicine) physician records with a practice address in Connecticut. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 55% of them.
- NPI issued2012 · 55% of these records are older, 38% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2012 · median 2008 among the 17 with a school on file
- Record last updated2021 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0002X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospice and Palliative Medicine (Internal Medicine) Physician providers in Connecticut
There are 29 hospice and palliative medicine (internal medicine) physician records in Connecticut.
All 29 in Connecticut → Every provider in New Haven → Hospice and Palliative Medicine (Internal Medicine) Physician nationwide →
The 8 hospice and palliative medicine (internal medicine) physician records with the nearest ZIP codes
- Alexander Mbewe, MDNew Haven, CT 065101811053812
- Laura Morrison, MDNew Haven, CT 065101225118631
- Elizabeth Prsic, M.D.New Haven, CT 065101376837930
- Andrew Putnam, MDNew Haven, CT 065101154307866
- Vinay RaoNew Haven, CT 065101922441070
- Mark Swidler, MDNew Haven, CT 065101770501405
- Richard Sorcinelli, M.D.Orange, CT 064771568907095
- Clare Cherney, MDMilford, CT 064601093896904
Common questions
What is Catherine O'Conor Adams, MD's NPI number?
Catherine O'Conor Adams, MD's National Provider Identifier (NPI) is 1851666192, issued on Mar 20, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Catherine O'Conor Adams, MD located?
The NPPES record lists a practice address at 20 York St, New Haven, CT, 06510. Phone: (203) 688-4242. Providers update this record themselves, so call before visiting.
How can I verify Catherine O'Conor Adams, MD's license?
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 Catherine O'Conor Adams, MD prescribe under Medicare Part D?
In 2024, Catherine O'Conor Adams, MD had 42 Medicare Part D claims for 26 beneficiaries; the average among hospice and palliative medicine (internal medicine) physician prescribers was 741. 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.