Naisha Williams, RN
NPI 1649779851 · Nurse Practitioner · Washington, DC
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Naisha Williams, RN is a Nurse Practitioner provider in Washington, DC (NPI 1649779851).
Provider details
- NPI number
- 1649779851
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- Yes
- License
- RN1048983 (DC)
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
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
166 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 105 | $113 |
| 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 | 35 | $14 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 13 | $80 |
| Administration of Influenza Virus VaccineG0008 | 13 | $34 |
Typical Medicare-allowed amounts for these services range $14–$113 (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 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 89 | 29 |
| Atorvastatin Calcium | 84 | 37 |
| Amlodipine Besylate | 68 | 28 |
| Gabapentin | 45 | 13 |
| Hydrochlorothiazide | 42 | 19 |
| Lisinopril | 40 | 14 |
| Rosuvastatin Calcium | 34 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$731 across 24 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
Registry dates
- Enumerated
- 2018-02-03
- Last updated
- 2019-11-20
Frequently asked questions
- What is Naisha Williams's NPI number?
- Naisha Williams's National Provider Identifier (NPI) is 1649779851, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Naisha Williams's specialty?
- Naisha Williams is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Naisha Williams located?
- Naisha Williams's practice location on file with NPPES is 2150 Pennsylvania Ave Nw Fl 9, Washington, DC 20037-3201.
- What is Naisha Williams's phone number?
- The practice phone number listed in the NPPES registry for Naisha Williams is (202) 741-3243.
- Does Naisha Williams accept Medicare?
- Naisha Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Naisha Williams's NPI active?
- Yes — Naisha Williams's NPI (1649779851) is active in the NPPES registry as of the last update on 2019-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.