Quick answers
- Where does Martin K. Williams see patients?
- Medicare's clinician data lists 1 practice location in Smithfield, NC. Call before your visit to confirm the address.
- What is Martin K. Williams's specialty?
- Medicare lists Psychiatry as the primary specialty.
- Does Martin K. Williams accept Medicare assignment?
- Medicare's clinician data says Martin K. Williams may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Martin K. Williams offer telehealth?
- Medicare's clinician data says Martin K. Williams offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Martin K. Williams?
- (919) 989-5500, as listed in official Medicare / NPI Registry data.
- What is Martin K. Williams's NPI number?
- 1669420733. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Martin K. Williams is enrolled with Medicare (CMS data updated 2026-10-02).
- 521 N Brightleaf BlvdSmithfield, NC 27577 (919) 989‑5500
Group practices
Medicare enrollment lists Martin K. Williams as a member of this group (CMS data updated 2026-10-02).
- Johnston County19 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Smithfield
Clinicians with the same Medicare primary specialty in Smithfield, NC — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Brody School Of Medicine At East Carolina University |
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1669420733 |
| 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
- 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