Sondra Williams, PA
NPI 1316461296 · Physician Assistant · Flagstaff, AZ
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sondra Williams, PA is a Physician Assistant provider in Flagstaff, AZ (NPI 1316461296).
Provider details
- NPI number
- 1316461296
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- Yes
- License
- 6841 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
17 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 17 | $105 |
Typical Medicare-allowed amounts for these services range $105–$105 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 169 | 46 |
| Metoprolol Succinate | 119 | 49 |
| Flecainide Acetate | 52 | 20 |
| Rivaroxabanbrand: Xarelto | 43 | 15 |
| Diltiazem Hclbrand: Diltiazem 24hr Er (cd) | 23 | — |
| Dofetilide | 23 | — |
| Carvedilol | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-08-01
- Last updated
- 2021-01-15
- Certified
- 2021-01-15
Frequently asked questions
- What is Sondra Williams's NPI number?
- Sondra Williams's National Provider Identifier (NPI) is 1316461296, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sondra Williams's specialty?
- Sondra Williams is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sondra Williams located?
- Sondra Williams's practice location on file with NPPES is 2000 S Thompson St, Flagstaff, AZ 86001-8759.
- What is Sondra Williams's phone number?
- The practice phone number listed in the NPPES registry for Sondra Williams is (928) 226-6400.
- Does Sondra Williams accept Medicare?
- Sondra Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sondra Williams's NPI active?
- Yes — Sondra Williams's NPI (1316461296) is active in the NPPES registry as of the last update on 2021-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.