Terrence Ryan, MD
Internal Medicine Physician · Litchfield, CT
Terrence Ryan, MD is an internal medicine physician with a practice address in Litchfield, Connecticut, and NPI 1982617833, issued on Aug 14, 2006. Check the license (Connecticut 032934, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Terrence Ryan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 032934 CT
Self-reported in NPPES; status is on the state search - Practice location
- 340 Bantam RD, Litchfield, CT 06759
- Phone
- (860) 567-9493
- Enumerated
- Aug 14, 2006
- Entity
- Type 1 · individual
Also registered at 340 Bantam RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Penny McEvoy, APRNNurse Practitioner1801806724
- Gary Shields, DPMPodiatrist1073535456
- Charles Staub, M.D.Internal Medicine Physician1427069996
Verify Terrence Ryan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 032934Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
3.2 times the Medicare Part D claims of the average internal medicine physician in 2024
8,984 Medicare Part D claims for 844 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 171 claims were for opioids.
Most prescribed
- Lisinopril541 claims
- Atorvastatin Calcium442 claims
- Amlodipine Besylate429 claims
- Simvastatin384 claims
- Levothyroxine Sodium331 claims
- Rosuvastatin Calcium258 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.
One hospital or facility affiliation
- Prohealth Physicians PCWinsted, CT
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
2 internal medicine physician records list a Litchfield practice address
They are 2 of the 113 NPPES records with a Litchfield practice address, and 2,830 internal medicine physician records in Connecticut.
All 2 in Litchfield → All 2,830 in Connecticut → Every provider in Litchfield →
Other internal medicine physician records in Connecticut
- Christina AbavanaBridgeport, CT1508206574
- Hoda Abdel Salam, M.D.New Britain, CT1144509316
- Gada Abdelhafiz, MDNew London, CT1467649558
- Mahmoud Abdelrahman, MDBridgeport, CT1467072868
- Simon Abi-SalehBridgeport, CT1891315529
- Gerard Abidor, D.O.Bridgeport, CT1518014539
- Richard Abraham, M.D.Canton, CT1023044252
- Odaliz Abreu-Lanfranco, MDNew Haven, CT1538276134
- Nila Aburto, MDStamford, CT1396325718
- Angelo Accomando, M.D.East Haven, CT1063454247
Common questions
What is Terrence Ryan, MD's NPI number?
Terrence Ryan, MD's National Provider Identifier (NPI) is 1982617833, issued on Aug 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Terrence Ryan, MD located?
The NPPES record lists a practice address at 340 Bantam RD, Litchfield, CT, 06759. Phone: (860) 567-9493. Providers update this record themselves, so call before visiting.
How can I verify Terrence Ryan, MD's license?
NPPES lists Connecticut license number 032934, 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 Terrence Ryan, MD prescribe under Medicare Part D?
In 2024, Terrence Ryan, MD had 8,984 Medicare Part D claims for 844 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.