Robert Williams, MD
NPI 1861576738 · Geriatric Psychiatry Physician · Durham, NC
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Williams, MD is a Geriatric Psychiatry Physician provider in Durham, NC (NPI 1861576738).
Provider details
- NPI number
- 1861576738
- Entity type
- Individual
- Primary specialty
- Geriatric Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- T-01988 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Fluoxetine Hcl | 40 |
| Trazodone Hcl | 35 |
| Duloxetine Hcl | 32 |
| Sertraline Hcl | 27 |
| Mirtazapine | 17 |
| Citalopram Hydrobromidebrand: Citalopram Hbr | 14 |
| Bupropion Hclbrand: Bupropion Xl | 14 |
| Memantine Hcl | 13 |
| Risperidone |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-25
- Last updated
- 2011-09-28
Frequently asked questions
- What is Robert Williams's NPI number?
- Robert Williams's National Provider Identifier (NPI) is 1861576738, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Williams's specialty?
- Robert Williams is listed in the NPPES registry with a primary specialty of Geriatric Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Williams located?
- Robert Williams's practice location on file with NPPES is 5407 Sky Lane Dr, Durham, NC 27704-3953.
- What is Robert Williams's phone number?
- The practice phone number listed in the NPPES registry for Robert Williams is (919) 682-0323.
- Does Robert Williams accept Medicare?
- Robert Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Williams's NPI active?
- Yes — Robert Williams's NPI (1861576738) is active in the NPPES registry as of the last update on 2011-09-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.