Evan Williams, MD
NPI 1225297492 · Neurology Physician · Roseville, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Evan Williams, MD is a Neurology Physician provider in Roseville, CA (NPI 1225297492).
Provider details
- NPI number
- 1225297492
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 56776 (MN)
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 tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,041 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 223 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 175 | $136 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 142 | $105 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 117 | $176 |
| Nerve Conduction, 9-10 Studies95911 | 83 | $228 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pyridostigmine Bromide | 90 | 21 |
| Donepezil Hcl | 78 | 24 |
| Mycophenolate Mofetil | 66 | 17 |
| Gabapentin | 56 | 24 |
| Sertraline Hcl | 43 | 15 |
| Pregabalin | 37 | 12 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 34 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$76 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 501 E Nicollet Blvd Ste 100Burnsville, MN 55337-6772Phone: (952) 435-8516Fax: (763) 302-4336
Registry dates
- Enumerated
- 2008-06-03
- Last updated
- 2021-08-19
- Certified
- 2021-08-19
Frequently asked questions
- What is Evan Williams's NPI number?
- Evan Williams's National Provider Identifier (NPI) is 1225297492, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Evan Williams's specialty?
- Evan Williams is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Evan Williams located?
- Evan Williams's practice location on file with NPPES is 2 Medical Plaza Dr Ste 205, Roseville, CA 95661-3044.
- What is Evan Williams's phone number?
- The practice phone number listed in the NPPES registry for Evan Williams is (916) 773-8711.
- Does Evan Williams accept Medicare?
- Evan Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Evan Williams's NPI active?
- Yes — Evan Williams's NPI (1225297492) is active in the NPPES registry as of the last update on 2021-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.