Rebecca Williamson, MD
NPI 1316438914 · Neurology Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rebecca Williamson, MD is a Neurology Physician provider in Philadelphia, PA (NPI 1316438914).
Provider details
- NPI number
- 1316438914
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- MD476885 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
237 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 82 | $17 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 40 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 27 | $98 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 20 | $136 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 |
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) | Beneficiaries |
|---|---|---|
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 99 | 48 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa Er | 42 | 17 |
| Donepezil Hcl | 32 | 22 |
| Escitalopram Oxalate | 20 | 11 |
| Duloxetine Hcl | 17 | — |
| Risperidone | 15 | — |
| Amantadine Hclbrand: Amantadine | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-05-21
- Last updated
- 2025-04-22
- Certified
- 2025-04-22
Frequently asked questions
- What is Rebecca Williamson's NPI number?
- Rebecca Williamson's National Provider Identifier (NPI) is 1316438914, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rebecca Williamson's specialty?
- Rebecca Williamson is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Rebecca Williamson located?
- Rebecca Williamson's practice location on file with NPPES is 330 South Ninth Street, Philadelphia, PA 19107-6103.
- What is Rebecca Williamson's phone number?
- The practice phone number listed in the NPPES registry for Rebecca Williamson is (215) 662-3606.
- Does Rebecca Williamson accept Medicare?
- Rebecca Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rebecca Williamson's NPI active?
- Yes — Rebecca Williamson's NPI (1316438914) is active in the NPPES registry as of the last update on 2025-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.