William Robertson, P.A.
NPI 1265983977 · Physician Assistant · Puyallup, WA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Robertson, P.A. is a Physician Assistant provider in Puyallup, WA (NPI 1265983977).
Provider details
- NPI number
- 1265983977
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.
- Sex
- Male
- Sole proprietor
- No
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 tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lisinopril | 111 | 41 |
| Atorvastatin Calcium | 106 | 40 |
| Amlodipine Besylate | 103 | 35 |
| Losartan Potassium | 67 | 27 |
| Hydrochlorothiazide | 61 | 17 |
| Levothyroxine Sodium | 55 | 17 |
| Gabapentin | 48 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-10-18
- Last updated
- 2021-04-29
- Certified
- 2021-04-29
Frequently asked questions
- What is William Robertson's NPI number?
- William Robertson's National Provider Identifier (NPI) is 1265983977, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Robertson's specialty?
- William Robertson is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Robertson located?
- William Robertson's practice location on file with NPPES is 1007 39th Ave Se, Puyallup, WA 98374-2192.
- What is William Robertson's phone number?
- The practice phone number listed in the NPPES registry for William Robertson is (253) 435-3100.
- Does William Robertson accept Medicare?
- William Robertson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Robertson's NPI active?
- Yes — William Robertson's NPI (1265983977) is active in the NPPES registry as of the last update on 2021-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.