William Liddell Dewitt, M.D.
Family Medicine Physician · Providence, RI
William Liddell Dewitt, M.D. is a family medicine physician with a practice address in Providence, Rhode Island, and NPI 1851658215, issued on Apr 23, 2012. Check the license (Rhode Island 19029, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- William Liddell Dewitt
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 19029 RI
Self-reported in NPPES; status is on the state search - Practice location
- 7 Central St, Providence, RI 02907
- Phone
- (401) 648-4700
- Enumerated
- Apr 23, 2012
- Record last updated
- Oct 18, 2023
- Fax
- (833) 905-2260
- Medicare enrollment
- Enrolled (PECOS I20251210003087); accepts Medicare assignment
- Medical or professional school
- University Of Cincinnati College Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 475 in Rhode Island → Look up another NPI →
Also registered at 7 Central St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Stacey Benben, DOFamily Medicine Physician1073142527
- Suzanne Bornschein, MDInternal Medicine Physician1528016334
- Kylie Broughal, PAMedical Physician Assistant1326525270
- Alexandra CartieriMental Health Counselor1083270714
- Philip Chan, MDInternal Medicine Physician1265658116
Verify William Liddell Dewitt 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 19029Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average family medicine physician in 2024
291 Medicare Part D claims for 51 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol (Once Weekly)22 claims
- Testopel15 claims
- Gabapentin13 claims
- Trazodone Hcl12 claims
- Montelukast Sodium11 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 2 group practices
- North Shore-Lij Medical PCManhasset, NY
- The Rhode Island Public Health FoundationProvidence, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Liddell Dewitt among 475 family medicine physician records in Rhode Island
William Liddell Dewitt, M.D. is one of 475 family medicine physician records with a practice address in Rhode Island. 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 56% of them.
- NPI issued2012 · 56% of these records are older, 43% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2011 · median 2008 among the 282 with a school on file
- Record last updated2023 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in Rhode Island
There are 475 family medicine physician records in Rhode Island.
All 475 in Rhode Island → Every provider in Providence → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Solmaz Behtash, DOProvidence, RI 029071326151937
- Stacey Benben, DOProvidence, RI 029071073142527
- Maria Fam, MDProvidence, RI 029071871155440
- Margaret Gallardo-Cochran, MDProvidence, RI 029071326209743
- Tsewang GyurmeyProvidence, RI 029071497948566
- Nadine Hewamudalige, MDProvidence, RI 029071184966608
- Vrishali Suman, MDProvidence, RI 029071194202705
- Kimberly Zeller, M.D.Providence, RI 029071578780060
Common questions
What is William Liddell Dewitt, M.D.'s NPI number?
William Liddell Dewitt, M.D.'s National Provider Identifier (NPI) is 1851658215, issued on Apr 23, 2012. An NPI identifies a provider in billing; it is not a license.
Where is William Liddell Dewitt, M.D. located?
The NPPES record lists a practice address at 7 Central St, Providence, RI, 02907. Phone: (401) 648-4700. Providers update this record themselves, so call before visiting.
How can I verify William Liddell Dewitt, M.D.'s license?
NPPES lists Rhode Island license number 19029, 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 William Liddell Dewitt, M.D. prescribe under Medicare Part D?
In 2024, William Liddell Dewitt, M.D. had 291 Medicare Part D claims for 51 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.