Lloyd Berthold Williams, M.D., PH.D.
Cornea and External Diseases Specialist Physician · Durham, NC
Lloyd Berthold Williams, M.D., PH.D. is a cornea and external diseases specialist physician with a practice address in Durham, North Carolina, and NPI 1730333741, issued on Nov 5, 2008. Check the license (North Carolina 2019-01645, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Lloyd Berthold Williams
- Credential
- M.D., PH.D.
- Primary taxonomy
- Cornea and External Diseases Specialist Physician 207WX0120X
- License number
- 2019-01645 NC
Self-reported in NPPES; status is on the state search - Practice location
- 2351 Erwin Road, Durham, NC 27710
- Phone
- (919) 684-0415
- Enumerated
- Nov 5, 2008
- Record last updated
- Aug 1, 2025
- Medicaid ID
- 056129100 MD
- Medicare enrollment
- Enrolled (PECOS I20191002003774); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2008
- Entity
- Type 1 · individual
Verify Lloyd Berthold Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 2019-01645Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average cornea and external diseases specialist physician in 2024
531 Medicare Part D claims for 214 beneficiaries, against an average of 1,263 among the 330 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.
Most prescribed
- Prednisolone Acetate178 claims
- Ofloxacin63 claims
- Moxifloxacin41 claims
- Brimonidine Tartrate34 claims
- Ketorolac Tromethamine34 claims
- Dorzolamide-Timolol23 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: $42.07
1 payment: food and beverage; the largest payer was Johnson & Johnson Surgical Vision, Inc. The 284 providers of this specialty with any payment received $3,109.37 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
- Duke Health Integrated Practice IncDurham, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cornea and External Diseases Specialist Physician providers in North Carolina
There are 9 cornea and external diseases specialist physician records in North Carolina.
Other cornea and external diseases specialist physician records in North Carolina
- Adam Bennett, MDRaleigh, NC1295184539
- Michelle Kim, MDDurham, NC1144664590
- Cason Robbins, MDDurham, NC1689250060
- Patricia Smith, M.D.Raleigh, NC1861439804
- C Song, MDAsheville, NC1932121753
- Sara Spyris, MDWinston Salem, NC1568826741
- Anthony Tang, MDWilmington, NC1255960936
- Yun Bo TianDurham, NC1235792268
Common questions
What is Lloyd Berthold Williams, M.D., PH.D.'s NPI number?
Lloyd Berthold Williams, M.D., PH.D.'s National Provider Identifier (NPI) is 1730333741, issued on Nov 5, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Lloyd Berthold Williams, M.D., PH.D. located?
The NPPES record lists a practice address at 2351 Erwin Road, Durham, NC, 27710. Phone: (919) 684-0415. Providers update this record themselves, so call before visiting.
How can I verify Lloyd Berthold Williams, M.D., PH.D.'s license?
NPPES lists North Carolina license number 2019-01645, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Lloyd Berthold Williams, M.D., PH.D. prescribe under Medicare Part D?
In 2024, Lloyd Berthold Williams, M.D., PH.D. had 531 Medicare Part D claims for 214 beneficiaries; the average among cornea and external diseases specialist physician prescribers was 1,263. 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.