Eileen Hahn, PHYSICIAN ASSISTANT
NPI 1861370264 · Physician Assistant · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eileen Hahn, PHYSICIAN ASSISTANT is a Physician Assistant provider in Walnut Creek, CA (NPI 1861370264).
Provider details
- NPI number
- 1861370264
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PHYSICIAN ASSISTANT
- Sex
- Female
- 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
Under 1 yr in 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2025-08-25
- Last updated
- 2025-08-25
- Certified
- 2025-08-24
Frequently asked questions
- What is Eileen Hahn's NPI number?
- Eileen Hahn's National Provider Identifier (NPI) is 1861370264, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eileen Hahn's specialty?
- Eileen Hahn is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Eileen Hahn located?
- Eileen Hahn's practice location on file with NPPES is 1399 Ygnacio Valley Rd Ste 11d, Walnut Creek, CA 94598-2874.
- What is Eileen Hahn's phone number?
- The practice phone number listed in the NPPES registry for Eileen Hahn is (925) 357-9033.
- Does Eileen Hahn accept Medicare?
- Eileen Hahn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eileen Hahn's NPI active?
- Yes — Eileen Hahn's NPI (1861370264) is active in the NPPES registry as of the last update on 2025-08-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.