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CIARA ANNE MAHAN M.S.
NPI 1578772380
Student in an Organized Health Care Education/Training Program in Fremont, CA

Active since May 21, 2007PECOS Enrolled
3550 MOWRY AVE STE 102, FREMONT, CA 94538(510) 745-9151(510) 745-9152 Get Directions Write a Review

NPPES record last updated: August 9, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ciara Anne Mahan M.s. NPPES

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

CIARA ANNE MAHAN M.S. (NPI 1578772380) is an individual student in an organized health care education/training program in Fremont, California and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1578772380
Entity TypeIndividualFemale
Primary Taxonomy390200000X
Provider Legal NameCIARA ANNE MAHANCredential: M.S.
Location Address3550 MOWRY AVE STE 102Fremont, CA 94538-1460
Mailing Address3550 Mowry Ave Ste 102Fremont, CA 94538-1460 · (510) 745-9151 · Fax (510) 745-9152
Phone(510) 745-9151
Fax(510) 745-9152
Sole ProprietorNo
Enumeration DateMay 21, 2007
Last NPPES UpdateAugust 9, 2007
✔ NPI 1578772380 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care
Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
3550 MOWRY AVE STE 102, Fremont, CA 94538
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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)

Ciara Anne Mahan M.s. 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.

Medicare Billing Reassignment

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

County Of Santa Clara
9.3 mi
Federally Qualified Health Center (FQHC)
143 N MAIN ST
Milpitas, CA 95035
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1043354020 (California), NPI 1629301346 (California)
  • 2,460 clinicians in this Medicare group
NPI 1285629899 (408) 885-5000

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

Other Providers at the Same Location NPPES

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

YU-HUA CHU
Student in an Organized Health Care Education/Training Program
3550 MOWRY AVE STE 102
FREMONT, CA 94538
Alameda County (510) 745-9151

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 Ciara Mahan's NPI number?

The NPI number for Ciara Mahan is 1578772380. It was assigned to this individual provider in the NPPES registry on May 21, 2007.

Where is Ciara Mahan located?

Ciara Mahan practices at 3550 Mowry Ave Ste 102, Fremont, CA 94538. The listed phone number is (510) 745-9151.

What is Ciara Mahan's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

Is Ciara Mahan enrolled in Medicare?

Yes. Ciara Mahan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ciara Mahan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ciara Mahan reassigns Medicare benefits to County Of Santa Clara (Milpitas, 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 Ciara Mahan'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 Ciara Mahan was last updated on August 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.