Ryan Williamson, M.D.
NPI 1003234204 · Neurology Physician · Charlotte, NC
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Williamson, M.D. is a Neurology Physician provider in Charlotte, NC (NPI 1003234204).
Provider details
- NPI number
- 1003234204
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 0101264099 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
275 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 74 | $103 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 51 | $120 |
| Critical Care, First 30-74 Minutes99291 | 43 | $197 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 30 | $160 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 29 | $73 |
| Measurement of Brain Wave Activity (eeg), Awake and Drowsy95816 | 24 |
Practice location
Mailing address
Additional practice locations (4)
- 1000 Johnson Ferry RdAtlanta, GA 30342-1606Phone: (404) 851-8000Fax: (404) 303-3759
- 100 Brewster BlvdCamp Lejeune, NC 28547-2575Phone: (910) 450-4300
- 501 N Graham St Ste 445Portland, OR 97227-2002Phone: (503) 413-6166
- 301 Riverview Ave Ste 202aNorfolk, VA 23510-1065Phone: (757) 252-9015
Registry dates
- Enumerated
- 2014-04-03
- Last updated
- 2025-01-21
- Certified
- 2025-01-21
Frequently asked questions
- What is Ryan Williamson's NPI number?
- Ryan Williamson's National Provider Identifier (NPI) is 1003234204, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Williamson's specialty?
- Ryan Williamson is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Williamson located?
- Ryan Williamson's practice location on file with NPPES is 200 Hawthorne Ln, Charlotte, NC 28204-2515.
- What is Ryan Williamson's phone number?
- The practice phone number listed in the NPPES registry for Ryan Williamson is (704) 384-9437.
- Does Ryan Williamson accept Medicare?
- Ryan Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Williamson's NPI active?
- Yes — Ryan Williamson's NPI (1003234204) is active in the NPPES registry as of the last update on 2025-01-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.