KHANH NGOC PHUONG MAI
NPI 1659869188
Nurse Practitioner - Family in Anaheim, CA

Active since April 30, 2018PECOS Enrolled
9918 KATELLA AVE STE A-C, ANAHEIM, CA 92804(800) 597-7977(714) 644-9894 Get Directions Write a Review

NPPES record last updated: June 4, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jun 4, 2026, Apr 30, 2018 (2 updates tracked since 2018).

About Khanh Ngoc Phuong Mai NPPES

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

KHANH NGOC PHUONG MAI (NPI 1659869188) is an individual family provider in Anaheim, California, licensed in California (95008602) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1659869188
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameKHANH NGOC PHUONG MAI
Location Address9918 KATELLA AVE STE A-CAnaheim, CA 92804-6465
Mailing Address661 W 1st St Ste GTustin, CA 92780-2939 · (714) 665-9890 · Fax (714) 665-9891
Fax(714) 644-9894
Sole ProprietorNo
Enumeration DateApril 30, 2018
Last NPPES UpdateJune 4, 20262 updates tracked since enumeration
NPPES CertifiedJune 4, 2026
✔ NPI 1659869188 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 · 95008602
9918 KATELLA AVE STE A-C, Anaheim, CA 92804

Secondary Practice Locations 2

Location 111180 Warner Ave Ste 353Fountain Valley, CA 92708-4098 · Phone (800) 597-7977 · Fax (714) 202-2626
Location 2661 W 1st St Ste GTustin, CA 92780-2939 · Phone (800) 597-7977 · Fax (714) 644-9891

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Khanh Ngoc Phuong Mai 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 Reassignments

5

Medicare enrollment records show Khanh Mai reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Clinic/Center
661 W 1ST ST, STE. G
Tustin, CA 92780
  • Reassigned Medicare billing, California enrollment
  • 86 clinicians in this Medicare group
Primary Care
18331 GRIDLEY RD, SUITE C
Cerritos, CA 90703
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Prode P Pascual MD Inc
  • 3 clinicians in this Medicare group
Program of All-Inclusive Care for the Elderly (PACE) Provider Organization
5831 FIRESTONE BLVD STE E
South Gate, CA 90280
  • Reassigned Medicare billing, California enrollment
  • 88 clinicians in this Medicare group
Primary Care
513 E LIME AVE, SUITE 103
Monrovia, CA 91016
  • Reassigned Medicare billing, California enrollment
  • 146 clinicians in this Medicare group
Psychologist
954 W FOOTHILL BLVD STE A
Upland, CA 91786
  • Reassigned Medicare billing, California enrollment
  • 76 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 92804 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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 3

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

Physician Assistant (Surgical)
9918 KATELLA AVE STE A-C
ANAHEIM, CA 92804
Nurse Practitioner (Family)
9918 KATELLA AVE STE A-C
ANAHEIM, CA 92804
Clinic/Center (Federally Qualified Health Center (FQHC))
9918 KATELLA AVE STE A-C
ANAHEIM, CA 92804

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 Khanh Mai's NPI number?

The NPI number for Khanh Mai is 1659869188. It was assigned to this individual provider in the NPPES registry on April 30, 2018.

Where is Khanh Mai located?

Khanh Mai practices at 9918 Katella Ave Ste A-C, Anaheim, CA 92804. The listed phone number is (800) 597-7977.

What is Khanh Mai's specialty?

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

Is Khanh Mai enrolled in Medicare?

Yes. Khanh Mai is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Khanh Mai's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Khanh Mai reassigns Medicare benefits to 5 organizations: Families Together Of Orange County (Tustin, CA), Prode P. Pascual, M.D., Inc. (Cerritos, CA), Complete Care Community Health Center, Inc (South Gate, CA), Mission City Community Network, Inc. (Monrovia, CA) and Foothills Psychological Services, Inc. (Upland, CA). 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 Khanh Mai'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 Khanh Mai was last updated on June 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.