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MARLENA RALSTON
NPI 1215771910
Nurse Practitioner - Family in Corona, CA

Active since June 19, 2024PECOS Enrolled
11186 GUFFEY RANCH WAY, CORONA, CA 92883(909) 649-2571 Get Directions Write a Review

NPPES record last updated: June 19, 2024. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Marlena Ralston NPPES

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

MARLENA RALSTON (NPI 1215771910) is an individual family provider in Corona, California, licensed in California (95030586) and active in the NPI registry since June 2024. She is enrolled in Medicare PECOS and is a graduate of Other (2024).

NPPES Registry Identity

NPI1215771910
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARLENA RALSTON
Location Address11186 GUFFEY RANCH WAYCorona, CA 92883-3078
Mailing Address11186 Guffey Ranch WayCorona, CA 92883-3078
Phone(909) 649-2571
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateJune 19, 2024
NPPES CertifiedJune 19, 2024
✔ NPI 1215771910 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in CA · 95030586
11186 GUFFEY RANCH WAY, Corona, CA 92883
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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

PECOS PAC ID5698230001
PECOS Enrollment IDI20260716002413
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.

Medicare Billing Reassignment

Medicare enrollment records show Marlena Ralston reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Carbon Health Medical Group Of California PC
48 mi
Urgent Care
600 E COLORADO BLVD # 120
Pasadena, CA 91101
  • Reassigned Medicare billing, California enrollment
  • 241 clinicians in this Medicare group
NPI 1255957205 (415) 200-2133

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92883 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
$91.88 typical visit price
range $59.60 – $179.42
Typical copayment $22.97 (range $14.90 – $44.85)
Most-billed visit code 99203
Established Patient
$104.64 typical visit price
range $19.37 – $146.42
Typical copayment $26.16 (range $4.84 – $36.60)
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.

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 Marlena Ralston's NPI number?

The NPI number for Marlena Ralston is 1215771910. It was assigned to this individual provider in the NPPES registry on June 19, 2024.

Where is Marlena Ralston located?

Marlena Ralston practices at 11186 Guffey Ranch Way, Corona, CA 92883. The listed phone number is (909) 649-2571.

What is Marlena Ralston's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Marlena Ralston enrolled in Medicare?

Yes. Marlena Ralston is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Marlena Ralston's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marlena Ralston reassigns Medicare benefits to Carbon Health Medical Group Of California PC (Pasadena, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marlena Ralston's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Marlena Ralston was last updated on June 19, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.