Amber Williams, FNP
NPI 1144072711 · Family Nurse Practitioner · Pomona, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Amber Williams, FNP is a Family Nurse Practitioner provider in Pomona, CA (NPI 1144072711).
Provider details
- NPI number
- 1144072711
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 95027785 (CA)
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
2 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
67 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 | 22 | $117 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 20 | $150 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 14 | $83 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 11 | $114 |
Typical Medicare-allowed amounts for these services range $83–$150 (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 |
|---|---|---|
| Fluticasone Propionate | 24 | 24 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 19 | 19 |
| Cephalexin | 19 | 19 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 17 | 17 |
| Azithromycin | 17 | 17 |
| Prednisone | 13 | 13 |
| Mupirocin | 11 | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2024-04-04
- Last updated
- 2024-04-04
- Certified
- 2024-04-04
Frequently asked questions
- What is Amber Williams's NPI number?
- Amber Williams's National Provider Identifier (NPI) is 1144072711, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Amber Williams's specialty?
- Amber Williams is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Amber Williams located?
- Amber Williams's practice location on file with NPPES is 255 E Bonita Ave Ste 100, Pomona, CA 91767-1923.
- What is Amber Williams's phone number?
- The practice phone number listed in the NPPES registry for Amber Williams is (909) 643-2980.
- Does Amber Williams accept Medicare?
- Amber Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Amber Williams's NPI active?
- Yes — Amber Williams's NPI (1144072711) is active in the NPPES registry as of the last update on 2024-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.