Riley Los
NPI 1205658457 · Pediatric Nurse Practitioner · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Riley Los is a Pediatric Nurse Practitioner provider in Grand Rapids, MI (NPI 1205658457).
Provider details
- NPI number
- 1205658457
- Entity type
- Individual
- Primary specialty
- Pediatric Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 20248618 (MI)
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
1 yr 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
- 2024-10-29
- Last updated
- 2025-04-30
- Certified
- 2025-04-30
Frequently asked questions
- What is Riley Los's NPI number?
- Riley Los's National Provider Identifier (NPI) is 1205658457, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Riley Los's specialty?
- Riley Los is listed in the NPPES registry with a primary specialty of Pediatric Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Riley Los located?
- Riley Los's practice location on file with NPPES is 35 Michigan St Ne Ste 1800, Grand Rapids, MI 49503-2568.
- What is Riley Los's phone number?
- The practice phone number listed in the NPPES registry for Riley Los is (616) 391-3933.
- Does Riley Los accept Medicare?
- Riley Los is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Riley Los's NPI active?
- Yes — Riley Los's NPI (1205658457) is active in the NPPES registry as of the last update on 2025-04-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.