Samuel Valdivia
NPI 1003439084 · Physician Assistant · Portland, OR
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Samuel Valdivia is a Physician Assistant provider in Portland, OR (NPI 1003439084).
Provider details
- NPI number
- 1003439084
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clopidogrel Bisulfatebrand: Clopidogrel | 20 | 13 |
| Gabapentin | 20 | 16 |
| Oxycodone Hcl | 19 | 17 |
| Metoprolol Tartrate | 16 | — |
| Potassium Chloride | 14 | 14 |
| Furosemide | 13 | 13 |
| Omeprazole | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$436 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 222 Se 8th Ave Ste 536Hillsboro, OR 97123-4218Phone: (503) 352-7272
- 1701 Sw Columbia St Apt 404Portland, OR 97201-2592Phone: (602) 403-5363
Registry dates
- Enumerated
- 2020-05-25
- Last updated
- 2022-10-28
- Certified
- 2022-09-23
Frequently asked questions
- What is Samuel Valdivia's NPI number?
- Samuel Valdivia's National Provider Identifier (NPI) is 1003439084, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Samuel Valdivia's specialty?
- Samuel Valdivia is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Samuel Valdivia located?
- Samuel Valdivia's practice location on file with NPPES is 501 N Graham St Medical Office Building 2, Portland, OR 97227.
- What is Samuel Valdivia's phone number?
- The practice phone number listed in the NPPES registry for Samuel Valdivia is (503) 413-6200.
- Does Samuel Valdivia accept Medicare?
- Samuel Valdivia is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Samuel Valdivia's NPI active?
- Yes — Samuel Valdivia's NPI (1003439084) is active in the NPPES registry as of the last update on 2022-10-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.