Ariana O'Malley, PA
NPI 1083325336 · Physician Assistant · Palo Alto, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ariana O'Malley, PA is a Physician Assistant provider in Palo Alto, CA (NPI 1083325336).
Provider details
- NPI number
- 1083325336
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- 62753 (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 tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 1041 Laurel StMenlo Park, CA 94025-3305Phone: (541) 625-3079
Registry dates
- Enumerated
- 2022-12-07
- Last updated
- 2023-09-22
- Certified
- 2023-09-22
Frequently asked questions
- What is Ariana O'Malley's NPI number?
- Ariana O'Malley's National Provider Identifier (NPI) is 1083325336, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ariana O'Malley's specialty?
- Ariana O'Malley is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ariana O'Malley located?
- Ariana O'Malley's practice location on file with NPPES is 725 Welch Rd, Palo Alto, CA 94304-1601.
- What is Ariana O'Malley's phone number?
- The practice phone number listed in the NPPES registry for Ariana O'Malley is (650) 497-8000.
- Does Ariana O'Malley accept Medicare?
- Ariana O'Malley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ariana O'Malley's NPI active?
- Yes — Ariana O'Malley's NPI (1083325336) is active in the NPPES registry as of the last update on 2023-09-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.