William Lawrence Roberts, MD, MSC
Internal Medicine Physician · New Haven, CT
William Lawrence Roberts, MD, MSC is an internal medicine physician with a practice address in New Haven, Connecticut, and NPI 1093392862, issued on Mar 26, 2021. Check the license (Connecticut 78899, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- William Lawrence Roberts
- Credential
- MD, MSC
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 78899 CT
Self-reported in NPPES; status is on the state search - Practice location
- 150 Sargent Dr, New Haven, CT 06511
- Phone
- (203) 503-3440
- Enumerated
- Mar 26, 2021
- Record last updated
- Jul 25, 2024
- Medicare enrollment
- Enrolled (PECOS I20241011000060); accepts Medicare assignment
- Medical or professional school
- Hofstra North Shore - Lij School Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 150 Sargent Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Lawrence Roberts in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 78899Check 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 internal medicine physician in 2024
255 Medicare Part D claims for 36 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium41 claims
- Amlodipine Besylate28 claims
- Metformin Hcl23 claims
- Ozempic21 claims
- Clopidogrel14 claims
- Furosemide14 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
- Cornell Scott Hill Health CorporationNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Lawrence Roberts among 2,623 internal medicine physician records in Connecticut
William Lawrence Roberts, MD, MSC 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 2021, is newer than 91% of them.
- NPI issued2021 · 91% of these records are older, 5% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2021 · median 2004 among the 1,646 with a school on file
- Record last updated2024 · 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).
329 internal medicine physician records list a practice address in New Haven
They are 329 of the 9,793 NPPES records with a practice address in New Haven, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in New Haven → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Samuel Geller, M.D.New Haven, CT 065111487644860
- Lee Jung, M.D.New Haven, CT 065111932199288
- Judy Kleinstein, MDNew Haven, CT 065111831187319
- Robert Linden, MDNew Haven, CT 065111841283736
Common questions
What is William Lawrence Roberts, MD, MSC's NPI number?
William Lawrence Roberts, MD, MSC's National Provider Identifier (NPI) is 1093392862, issued on Mar 26, 2021. An NPI identifies a provider in billing; it is not a license.
Where is William Lawrence Roberts, MD, MSC located?
The NPPES record lists a practice address at 150 Sargent Dr, New Haven, CT, 06511. Phone: (203) 503-3440. Providers update this record themselves, so call before visiting.
How can I verify William Lawrence Roberts, MD, MSC's license?
NPPES lists Connecticut license number 78899, 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 William Lawrence Roberts, MD, MSC prescribe under Medicare Part D?
In 2024, William Lawrence Roberts, MD, MSC had 255 Medicare Part D claims for 36 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.