Alyssa Williams
NPI 1528792868 · Family Nurse Practitioner · Alexandria, VA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alyssa Williams is a Family Nurse Practitioner provider in Alexandria, VA (NPI 1528792868).
Provider details
- NPI number
- 1528792868
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 0001283591 (VA)
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 tenure25% of score
3 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
207 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 72 | $86 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 72 | $117 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 49 | $8 |
| Annual Wellness Visit; Includes a Personalized Prevention Plan of Service (pps), Initial VisitG0438 | 14 | $153 |
Typical Medicare-allowed amounts for these services range $8–$153 (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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 56 | 29 |
| Losartan Potassium | 41 | 16 |
| Levothyroxine Sodium | 39 | 14 |
| Lisinopril | 23 | 13 |
| Rosuvastatin Calcium | 22 | 12 |
| Metformin Hcl | 19 | — |
| Simvastatin | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$219 across 9 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)
- 1101 Wilson Blvd Fl 6Arlington, VA 22209-2281Phone: (888) 731-8994
Registry dates
- Enumerated
- 2022-07-12
- Last updated
- 2025-10-16
- Certified
- 2025-10-16
Frequently asked questions
- What is Alyssa Williams's NPI number?
- Alyssa Williams's National Provider Identifier (NPI) is 1528792868, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alyssa Williams's specialty?
- Alyssa Williams is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alyssa Williams located?
- Alyssa Williams's practice location on file with NPPES is 700 S Washington St Ste 330, Alexandria, VA 22314-4291.
- What is Alyssa Williams's phone number?
- The practice phone number listed in the NPPES registry for Alyssa Williams is (703) 528-8260.
- Does Alyssa Williams accept Medicare?
- Alyssa Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alyssa Williams's NPI active?
- Yes — Alyssa Williams's NPI (1528792868) is active in the NPPES registry as of the last update on 2025-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.