Alyxis Mah, PA-C
NPI 1861016685 · Physician Assistant · Fountain Valley, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alyxis Mah, PA-C is a Physician Assistant provider in Fountain Valley, CA (NPI 1861016685).
Provider details
- NPI number
- 1861016685
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 57969 (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 tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$747 across 16 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 (1)
- 800 E Washington BlvdCrescent City, CA 95531-8359Phone: (707) 464-8511
Registry dates
- Enumerated
- 2020-06-08
- Last updated
- 2021-10-29
- Certified
- 2021-10-11
Frequently asked questions
- What is Alyxis Mah's NPI number?
- Alyxis Mah's National Provider Identifier (NPI) is 1861016685, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alyxis Mah's specialty?
- Alyxis Mah is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alyxis Mah located?
- Alyxis Mah's practice location on file with NPPES is 11190 Warner Ave Ste 300, Fountain Valley, CA 92708-4045.
- What is Alyxis Mah's phone number?
- The practice phone number listed in the NPPES registry for Alyxis Mah is (714) 241-7000.
- Does Alyxis Mah accept Medicare?
- Alyxis Mah is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alyxis Mah's NPI active?
- Yes — Alyxis Mah's NPI (1861016685) is active in the NPPES registry as of the last update on 2021-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.