Mariana Diaz, PA-C
NPI 1558103911 · Physician Assistant · Portland, OR
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mariana Diaz, PA-C is a Physician Assistant provider in Portland, OR (NPI 1558103911).
Provider details
- NPI number
- 1558103911
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- PA227610 (OR)
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
2 yrs in NPPES registry
- Profile completeness38% of score
100% 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2024-06-07
- Last updated
- 2026-02-05
- Certified
- 2026-02-05
Frequently asked questions
- What is Mariana Diaz's NPI number?
- Mariana Diaz's National Provider Identifier (NPI) is 1558103911, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mariana Diaz's specialty?
- Mariana Diaz is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mariana Diaz located?
- Mariana Diaz's practice location on file with NPPES is 2730 S Moody Ave, Portland, OR 97201-5042.
- What is Mariana Diaz's phone number?
- The practice phone number listed in the NPPES registry for Mariana Diaz is (503) 494-3633.
- Does Mariana Diaz accept Medicare?
- Mariana Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mariana Diaz's NPI active?
- Yes — Mariana Diaz's NPI (1558103911) is active in the NPPES registry as of the last update on 2026-02-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.