Desiree Williams, PA-C
NPI 1992177729 · Physician Assistant · Surprise, AZ
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Desiree Williams, PA-C is a Physician Assistant provider in Surprise, AZ (NPI 1992177729).
Provider details
- NPI number
- 1992177729
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- 6276 (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
10 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
142 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 55 | $142 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 29 | $98 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 23 | $52 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 20 | $76 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 15 | $64 |
Typical Medicare-allowed amounts for these services range $52–$142 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 33 | 33 |
| Prednisone | 22 | 22 |
| Ondansetronbrand: Ondansetron Odt | 19 | 19 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 18 | 18 |
| Doxycycline Hyclate | 16 | 16 |
| Azithromycin | 15 | 15 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-10-20
- Last updated
- 2016-07-12
Frequently asked questions
- What is Desiree Williams's NPI number?
- Desiree Williams's National Provider Identifier (NPI) is 1992177729, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Desiree Williams's specialty?
- Desiree Williams is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Desiree Williams located?
- Desiree Williams's practice location on file with NPPES is 13755 N Litchfield Rd, Surprise, AZ 85379-4287.
- What is Desiree Williams's phone number?
- The practice phone number listed in the NPPES registry for Desiree Williams is (623) 322-5900.
- Does Desiree Williams accept Medicare?
- Desiree Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Desiree Williams's NPI active?
- Yes — Desiree Williams's NPI (1992177729) is active in the NPPES registry as of the last update on 2016-07-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.