Lawrence B. Marks, M.D.
Radiation Oncology Physician · Chapel Hill, NC
Lawrence B. Marks, M.D. is a radiation oncology physician with a practice address in Chapel Hill, North Carolina, and NPI 1417043738, issued on Oct 5, 2006. Check the license (North Carolina 37892, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Lawrence B. Marks
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 37892 NC
Self-reported in NPPES; status is on the state search - Practice location
- 101 Manning Dr, Chapel Hill, NC 27514
- Phone
- (919) 966-7890
- Enumerated
- Oct 5, 2006
- Record last updated
- Mar 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080731000292); accepts Medicare assignment
- Medical or professional school
- University Of Rochester School Of Medicine And Dentistry, 1985
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 230 in North Carolina → Look up another NPI →
Also registered at 101 Manning Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jihad Abdelgadir Imam Mohamed Ahmed, MDNeurological Surgery Physician1942706320
- Abimbola Abiola, M.DStudent in an Organized Health Care Education/Training Program1831880780
- Elise Abken, MDPsychiatry Physician1558884221
- Amy Abramowitz, M.D.Psychiatry Physician1871983676
- Sudeep Acharya, M.D.Student in an Organized Health Care Education/Training Program1144719402
- Stephen Acosta, MDAnesthesiology Physician1255741757
Verify Lawrence B. Marks in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 37892Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average radiation oncology physician in 2024
13 Medicare Part D claims, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
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 3 group practices
- Johnston Radiation Oncology LLCClayton, NC
- Smithfield Radiation Oncology LLCSmithfield, NC
- University OF North Carolina AT Chapel HillChapel Hill, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lawrence B. Marks among 230 radiation oncology physician records in North Carolina
Lawrence B. Marks, M.D. is one of 230 radiation oncology physician records with a practice address in North Carolina. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 46% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated1985 · median 2003 among the 166 with a school on file
- Record last updated2021 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in North Carolina
There are 230 radiation oncology physician records in North Carolina.
All 230 in North Carolina → Every provider in Chapel Hill → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Mitchell Anscher, M.D.Chapel Hill, NC 275141366472102
- Xuguang Chen, MDChapel Hill, NC 275141235666868
- Gaorav Gupta, M.D., PH.D.Chapel Hill, NC 275141740416478
- Ellen Jones, M.D.Chapel Hill, NC 275141780770164
- Michael Repka, MDChapel Hill, NC 275141760829527
- Shivani Sud, MDChapel Hill, NC 275141942720149
- Andrew Wang, M.D.Chapel Hill, NC 275141306023460
- Ashley Weiner, M.D., PH.D.Chapel Hill, NC 275141154697381
Common questions
What is Lawrence B. Marks, M.D.'s NPI number?
Lawrence B. Marks, M.D.'s National Provider Identifier (NPI) is 1417043738, issued on Oct 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lawrence B. Marks, M.D. located?
The NPPES record lists a practice address at 101 Manning Dr, Chapel Hill, NC, 27514. Phone: (919) 966-7890. Providers update this record themselves, so call before visiting.
How can I verify Lawrence B. Marks, M.D.'s license?
NPPES lists North Carolina license number 37892, 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 Lawrence B. Marks, M.D. prescribe under Medicare Part D?
In 2024, Lawrence B. Marks, M.D. had 13 Medicare Part D claims; the average among radiation oncology physician prescribers was 134. 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.