Samantha Samuel-Williams, PA
NPI 1689722530 · Physician Assistant · San Diego, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Samantha Samuel-Williams, PA is a Physician Assistant provider in San Diego, CA (NPI 1689722530).
Provider details
- NPI number
- 1689722530
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- PA15302 (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
19 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
33 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 33 | $9 |
Typical Medicare-allowed amounts for these services range $9–$9 (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 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 49 | 16 |
| Atorvastatin Calcium | 32 | 11 |
| Metformin Hcl | 31 | — |
| Lisinopril | 26 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 20 | — |
| Losartan Potassium | 19 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-08
- Last updated
- 2008-09-23
Frequently asked questions
- What is Samantha Samuel-Williams's NPI number?
- Samantha Samuel-Williams's National Provider Identifier (NPI) is 1689722530, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Samantha Samuel-Williams's specialty?
- Samantha Samuel-Williams is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Samantha Samuel-Williams located?
- Samantha Samuel-Williams's practice location on file with NPPES is 4647 Zion Ave, San Diego, CA 92120-2507.
- What is Samantha Samuel-Williams's phone number?
- The practice phone number listed in the NPPES registry for Samantha Samuel-Williams is (619) 528-5000.
- Does Samantha Samuel-Williams accept Medicare?
- Samantha Samuel-Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Samantha Samuel-Williams's NPI active?
- Yes — Samantha Samuel-Williams's NPI (1689722530) is active in the NPPES registry as of the last update on 2008-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.