Warren Richard Steinberg, MD
Internal Medicine Physician · Westport, CT
Warren Richard Steinberg, MD is an internal medicine physician with a practice address in Westport, Connecticut, and NPI 1720113467, issued on Feb 22, 2007. Check the license (Connecticut 20694, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Warren Richard Steinberg
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20694 CT
Self-reported in NPPES; status is on the state search - Practice location
- 225 Main St, Westport, CT 06880
- Phone
- (203) 222-9533
- Enumerated
- Feb 22, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (203) 222-1933
- Medicare enrollment
- Enrolled (PECOS I20120207000400); may accept Medicare assignment
- Medical or professional school
- State University Of Ny Upstate Medical University, 1973
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 225 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joyce Colburn, LCSWClinical Social Worker1922468198
- Trevor Crow, MA, MFTMarriage & Family Therapist1326254442
- Carrie Gordon-Land, MA, LPCProfessional Counselor1932189891
- Jonathan Kantor, DCRehabilitation Chiropractor1710005061
- Jennifer Lee, M.D.Child & Adolescent Psychiatry Physician1730390089
- Barbara Rassow, DC CNMAdvanced Practice Midwife1699893958
Verify Warren Richard Steinberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 20694Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% more Medicare Part D claims than the average internal medicine physician in 2024
4,386 Medicare Part D claims for 288 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 21 claims were for opioids.
Most prescribed
- Atorvastatin Calcium340 claims
- Levothyroxine Sodium177 claims
- Alprazolam107 claims
- Losartan Potassium106 claims
- Zolpidem Tartrate104 claims
- Duloxetine Hcl102 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.
Industry payments in 2024: $77.92
4 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Rehabilitation Associates IncFairfield, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Warren Richard Steinberg among 2,623 internal medicine physician records in Connecticut
Warren Richard Steinberg, MD is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% 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 48% of them.
- NPI issued2007 · 48% of these records are older, 44% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1973 · median 2004 among the 1,646 with a school on file
- Record last updated2007 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 internal medicine physician records list a practice address in Westport
They are 23 of the 886 NPPES records with a practice address in Westport, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Westport → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Robert Altbaum, M.D.Westport, CT 068801285736124
- David Baum, M.D.Westport, CT 068801437175486
- Jill Denowitz, M.D.Westport, CT 068801215013941
- Robert Dresdner, M.D.Westport, CT 068801356443204
- Samuel Frumkin, M.D.Westport, CT 068801124120043
- Jay Horn, M.D.Westport, CT 068801013093731
- Nina Karol, M.D.Westport, CT 068801548286818
- Anthony Lamarca, MDWestport, CT 068801336105139
Common questions
What is Warren Richard Steinberg, MD's NPI number?
Warren Richard Steinberg, MD's National Provider Identifier (NPI) is 1720113467, issued on Feb 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Warren Richard Steinberg, MD located?
The NPPES record lists a practice address at 225 Main St, Westport, CT, 06880. Phone: (203) 222-9533. Providers update this record themselves, so call before visiting.
How can I verify Warren Richard Steinberg, MD's license?
NPPES lists Connecticut license number 20694, 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 Warren Richard Steinberg, MD prescribe under Medicare Part D?
In 2024, Warren Richard Steinberg, MD had 4,386 Medicare Part D claims for 288 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.