Quick answers
- Which hospitals does Lawrence B. Marks work at?
- Medicare's official clinician data lists Lawrence B. Marks at 1 hospital: UNC Hospitals. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Lawrence B. Marks see patients?
- Medicare's clinician data lists 10 practice locations, including Chapel Hill, NC, Raleigh, NC and Clayton, NC. Call before your visit to confirm the address.
- What is Lawrence B. Marks's specialty?
- Medicare lists Radiation Oncology as the primary specialty.
- Does Lawrence B. Marks accept Medicare assignment?
- Yes. Medicare's clinician data says Lawrence B. Marks accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Lawrence B. Marks?
- (919) 334-3900, as listed in official Medicare / NPI Registry data.
- What is Lawrence B. Marks's NPI number?
- 1417043738. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Lawrence B. Marks works
Medicare's Facility Affiliation Data lists Lawrence B. Marks at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- UNC HospitalsChapel Hill, NC · Acute Care Hospital · CCN 340061
Practice locations
Addresses where Lawrence B. Marks is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 10; the Medicare profile lists all.
- 101 Manning DrChapel Hill, NC 27514
- 117 Sunnybrook RdRaleigh, NC 27610 (919) 334‑3900
- 2076 Veterans Pkwy, Suite 120Clayton, NC 27520 (919) 585‑8550
- 2801 Blue Ridge RdRaleigh, NC 27607 (984) 974‑0500
- 430 Waterstone DrHillsborough, NC 27278 (984) 215‑2000
Group practices
Medicare enrollment lists Lawrence B. Marks as a member of these groups (CMS data updated 2026-10-02).
- University of North Carolina at Chapel Hill2,052 clinicians in the group
- Johnston Radiation Oncology LLC17 clinicians in the group
- Smithfield Radiation Oncology LLC16 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in Chapel Hill
Clinicians with the same Medicare primary specialty in Chapel Hill, NC — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Rochester School Of Medicine And Dentistry |
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1417043738 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians