Janet B. Lefkowitz, DO
Gynecology Physician · Providence, RI
Janet B. Lefkowitz, DO is a gynecology physician with a practice address in Providence, Rhode Island, and NPI 1235149865, issued on Aug 8, 2006. Check the license (Rhode Island DO00607, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Janet B. Lefkowitz
- Credential
- DO
- Primary taxonomy
- Gynecology Physician 207VG0400X
- License number
- DO00607 RI
Self-reported in NPPES; status is on the state search - Practice location
- 101 Dudley St, Providence, RI 02905
- Phone
- (401) 274-1122
- Enumerated
- Aug 8, 2006
- Record last updated
- Mar 2, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20061013000363); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 2001
- Entity
- Type 1 · individual
Also registered at 101 Dudley St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lauren Abern, MDObstetrics & Gynecology Physician1851528467
- Emily Adams, MDObstetrics & Gynecology Physician1750021622
- Victoria Adewale, MDObstetrics & Gynecology Physician1467015024
- Brigida Aguiar, LICSWSocial Worker1356360572
- Barbara Alksninis, NPPPediatric Nurse Practitioner1447586490
- Rebecca Allen, MDGynecology Physician1669457735
Verify Janet B. Lefkowitz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license DO00607Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average gynecology physician in 2024
56 Medicare Part D claims for 18 beneficiaries, against an average of 299 among the 1,919 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.
Most prescribed
- Norethindrone Acetate13 claims
- Medroxyprogesterone Acetate12 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.
Bills Medicare through one group practice
- Affinity Physicians LLC.Warwick, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gynecology Physician providers in Rhode Island
There are 11 gynecology physician records in Rhode Island.
Other gynecology physician records in Rhode Island
- Rebecca Allen, MDProvidence, RI1669457735
- Kathleen Cassin, MDWakefield, RI1679529333
- Colleen Cavanaugh, M.D.Pawtucket, RI1962460980
- Cynthia Hanna, MDPawtucket, RI1457391336
- Insu Kong, MDWesterly, RI1346227188
- Beth Marcaccio, M.D.Warwick, RI1639185689
- Laura Nevel, MDCranston, RI1801831862
- Joseph O'Neill, M.D.Wakefield, RI1548203797
- Judi Rosenthal, M.D.Newport, RI1972585776
- Michael Spizzirri, MDWoonsocket, RI1124059936
Common questions
What is Janet B. Lefkowitz, DO's NPI number?
Janet B. Lefkowitz, DO's National Provider Identifier (NPI) is 1235149865, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Janet B. Lefkowitz, DO located?
The NPPES record lists a practice address at 101 Dudley St, Providence, RI, 02905. Phone: (401) 274-1122. Providers update this record themselves, so call before visiting.
How can I verify Janet B. Lefkowitz, DO's license?
NPPES lists Rhode Island license number DO00607, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Janet B. Lefkowitz, DO prescribe under Medicare Part D?
In 2024, Janet B. Lefkowitz, DO had 56 Medicare Part D claims for 18 beneficiaries; the average among gynecology physician prescribers was 299. 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.