Barbara Williams, FNP-C
NPI 1043699622 · Family Nurse Practitioner · Phoenix, AZ
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Barbara Williams, FNP-C is a Family Nurse Practitioner provider in Phoenix, AZ (NPI 1043699622).
Provider details
- NPI number
- 1043699622
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- AP7842 (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
11 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
1,566 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) |
|---|---|---|
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 845 | $104 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 133 | $51 |
| Administration of a Standardized, Evidence-Based Social Determinants of Health Risk Assessment Tool, 5-15 MinutesG0136 | 90 | $16 |
| Advance Care Planning, First 30 Minutes99497 | 82 | $67 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 75 | $107 |
| Residence Visit for New Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 129 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 353 | 75 |
| Levothyroxine Sodium | 286 | 59 |
| Atorvastatin Calcium | 267 | 58 |
| Gabapentin | 263 | 48 |
| Potassium Chloride | 230 | 58 |
| Amlodipine Besylate | 217 | 42 |
| Furosemide | 199 | 49 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-05-28
- Last updated
- 2024-11-05
- Certified
- 2024-11-05
Frequently asked questions
- What is Barbara Williams's NPI number?
- Barbara Williams's National Provider Identifier (NPI) is 1043699622, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barbara Williams's specialty?
- Barbara Williams is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Barbara Williams located?
- Barbara Williams's practice location on file with NPPES is 10214 N Tatum Blvd Ste A1600, Phoenix, AZ 85028-4253.
- What is Barbara Williams's phone number?
- The practice phone number listed in the NPPES registry for Barbara Williams is (602) 694-7042.
- Does Barbara Williams accept Medicare?
- Barbara Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Barbara Williams's NPI active?
- Yes — Barbara Williams's NPI (1043699622) is active in the NPPES registry as of the last update on 2024-11-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.