1. Home
  2. Directory
  3. Michigan
  4. Grand Rapids
  5. Nurse Practitioner
  6. NPI Profile

RILEY LOS
NPI 1205658457
Nurse Practitioner - Pediatrics in Grand Rapids, MI

Active since October 29, 2024PECOS Enrolled
35 MICHIGAN ST NE STE 1800, GRAND RAPIDS, MI 49503(616) 391-3933 Get Directions Write a Review

NPPES record last updated: April 30, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Riley Los NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RILEY LOS (NPI 1205658457) is an individual pediatrics provider in Grand Rapids, Michigan, licensed in Michigan (20248618) and active in the NPI registry since October 2024. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1205658457
Entity TypeIndividualFemale
Primary Taxonomy363LP0200X
Provider Legal NameRILEY LOS
Location Address35 MICHIGAN ST NE STE 1800Grand Rapids, MI 49503-2568
Mailing Address100 Michigan St Ne # Mc845Grand Rapids, MI 49503-2560
Phone(616) 391-3933
Sole ProprietorNo
Enumeration DateOctober 29, 2024
Last NPPES UpdateApril 30, 2025
NPPES CertifiedApril 30, 2025
✔ NPI 1205658457 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · PediatricsPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0200X
License✔ Licensed in MI · 20248618
35 MICHIGAN ST NE STE 1800, Grand Rapids, MI 49503
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Riley Los is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49503 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

WILLIAM B STRATBUCKER M.D.
Pediatrics
35 MICHIGAN ST NE STE 1800
GRAND RAPIDS, MI 49503
Kent County (616) 391-7999
ASHTON GREENE
Physical Therapist
35 MICHIGAN ST NE STE 1800
GRAND RAPIDS, MI 49503
Kent County (616) 267-0724
JULIANNA KAY SCHLOZ PNP
Nurse Practitioner (Pediatrics)
35 MICHIGAN ST NE STE 1800
GRAND RAPIDS, MI 49503
Kent County (616) 391-3933
SHANNON MICHELLE MCKINLEY-RAPP LMSW
Social Worker (Clinical)
35 MICHIGAN ST NE STE 1800
GRAND RAPIDS, MI 49503
Kent County (616) 391-3933
SPECTRUM HEALTH PRIMARY CARE PARTNERS
Pediatrics (Pediatric Endocrinology)
35 MICHIGAN ST NE STE 1800
GRAND RAPIDS, MI 49503
Kent County (616) 391-3933
ADITYA VINAYAK DEWOOLKAR MD
Pediatrics (Pediatric Endocrinology)
35 MICHIGAN ST NE STE 1800
GRAND RAPIDS, MI 49503
Kent County (616) 391-3933
MRS. IRENE MARIA MCKENZIE APN, CPNP
Nurse Practitioner (Pediatrics)
35 MICHIGAN ST NE STE 1800
GRAND RAPIDS, MI 49503
Kent County (616) 391-7999
DR. HANNA CHRISTINE JAWORSKI M.D.
Pediatrics
35 MICHIGAN ST NE STE 1800
GRAND RAPIDS, MI 49503
Kent County (616) 391-7999

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Riley Los's NPI number?

The NPI number for Riley Los is 1205658457. It was assigned to this individual provider in the NPPES registry on October 29, 2024.

Where is Riley Los located?

Riley Los practices at 35 Michigan St NE Ste 1800, Grand Rapids, MI 49503. The listed phone number is (616) 391-3933.

What is Riley Los's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.

Is Riley Los enrolled in Medicare?

Yes. Riley Los is registered in the Medicare PECOS enrollment system.

What insurance does Riley Los accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 2 other insurers list Riley Los as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Riley Los was last updated on April 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.