Ellen Ly, NP
NPI 1215539820 · Nurse Practitioner · Arcadia, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ellen Ly, NP is a Nurse Practitioner provider in Arcadia, CA (NPI 1215539820).
Provider details
- NPI number
- 1215539820
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 2020115166 (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
5 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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.
$1,049 across 56 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
Registry dates
- Enumerated
- 2020-11-10
- Last updated
- 2021-01-05
- Certified
- 2021-01-05
Frequently asked questions
- What is Ellen Ly's NPI number?
- Ellen Ly's National Provider Identifier (NPI) is 1215539820, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellen Ly's specialty?
- Ellen Ly is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ellen Ly located?
- Ellen Ly's practice location on file with NPPES is 289 W Huntington Dr Ste 401, Arcadia, CA 91007-3493.
- What is Ellen Ly's phone number?
- The practice phone number listed in the NPPES registry for Ellen Ly is (626) 254-0074.
- Does Ellen Ly accept Medicare?
- Ellen Ly is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ellen Ly's NPI active?
- Yes — Ellen Ly's NPI (1215539820) is active in the NPPES registry as of the last update on 2021-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.