MARIE GALARAGA JOHNSTON FNP-BC
NPI 1528505377
Nurse Practitioner - Family in Montclair, CA
About Marie Galaraga Johnston Fnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIE GALARAGA JOHNSTON FNP-BC (NPI 1528505377) is an individual family provider in Montclair, California, licensed in California (95004376) and active in the NPI registry since January 2017. She is enrolled in Medicare PECOS, maintains a secondary practice location in Los Altos Hills, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Marie Galaraga Johnston Fnp-bc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
6Medicare enrollment records show Marie Johnston reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Delano, CA 93215
- Reassigned Medicare billing, California enrollment
- 301 clinicians in this Medicare group
San Jose, CA 95113
- Reassigned Medicare billing, California enrollment
- 10 clinicians in this Medicare group
San Mateo, CA 94402
- Reassigned Medicare billing, California enrollment
- 18 clinicians in this Medicare group
New York, NY 10016
- Reassigned Medicare billing, California and New York enrollments
- 3 clinicians in this Medicare group
Hauppauge, NY 11788
- Reassigned Medicare billing, New York enrollment
- 19 clinicians in this Medicare group
Mesa, AZ 85204
- Reassigned Medicare billing, Arizona, California, Florida, Nevada, Texas, Virginia and Washington enrollments
- 11 clinicians in this Medicare group
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 91763 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MONTCLAIR, CA 91763
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 Marie Johnston's NPI number?
The NPI number for Marie Johnston is 1528505377. It was assigned to this individual provider in the NPPES registry on January 31, 2017. The provider is also known as Marie Galaraga Madamba.
Where is Marie Johnston located?
Marie Johnston practices at 9635 Monte Vista Ave Ste 205, Montclair, CA 91763. The listed phone number is (909) 449-9328.
What is Marie Johnston's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Marie Johnston enrolled in Medicare?
Yes. Marie Johnston is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Marie Johnston's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marie Johnston reassigns Medicare benefits to 6 organizations: Team Physicians Of California Medical Group Inc (Delano, CA), Ez Health Medical Group West PC (San Jose, CA), Upward Health Of California, PC (San Mateo, CA), Brooklyn Family Medicine Practice PC (New York, NY), Dennis Mihale MD Of Ny PC (Hauppauge, NY) and 1 more organization, listed in the Medicare section above. Each 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 Marie Johnston's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marie Johnston accept?
Health plans from Cigna HealthCare of Florida, Inc. and Cigna Healthcare list Marie Johnston 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 Marie Johnston was last updated on August 28, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Marie Galaraga Johnston, FNP-BC · NPI 1528505377
Family physician in Montclair, California. Individual provider, active in the CMS NPPES registry since January 31, 2017.
## Identity
- **NPI:** 1528505377 (Entity type: Individual)
- **Enumerated:** January 31, 2017
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 95004376 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 9635 MONTE VISTA AVE STE 205, Montclair, CA 91763-2235
- **Phone:** (909) 449-9328 · **Fax:** (310) 362-0313
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Team Physicians Of California Medical Group Inc (NPI 1447288345, Delano, CA); Ez Health Medical Group West PC (NPI 1659164580, San Jose, CA); Upward Health Of California, PC (NPI 1407518780, San Mateo, CA); Brooklyn Family Medicine Practice PC (NPI 1730972654, New York, NY); Dennis Mihale MD Of Ny PC (NPI 1871172957, Hauppauge, NY); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** August 28, 2023
- **Other identifiers:** Other 95004376 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1528505377) · Data from the CMS NPPES public registry.