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JENNY JOO
NPI 1821411570
Nurse Practitioner - Adult Health in Fountain Valley, CA

Active since January 31, 2014PECOS Enrolled
11180 WARNER AVE STE 351, FOUNTAIN VALLEY, CA 92708(781) 642-1912(781) 642-0381 Get Directions Write a Review

NPPES record last updated: April 9, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Jenny Joo NPPES

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

JENNY JOO (NPI 1821411570) is an individual adult health provider in Fountain Valley, California, licensed in California (95009697) and active in the NPI registry since January 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1821411570
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameJENNY JOO
Location Address11180 WARNER AVE STE 351Fountain Valley, CA 92708-7516
Mailing Address29 Deer Path LnWeston, MA 02493-1139
Phone(781) 642-1912
Fax(781) 642-0381
Sole ProprietorNo
Enumeration DateJanuary 31, 2014
Last NPPES UpdateApril 9, 2025
NPPES CertifiedApril 9, 2025
✔ NPI 1821411570 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License✔ Licensed in CA · 95009697
11180 WARNER AVE STE 351, Fountain Valley, CA 92708
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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)

Jenny Joo 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

2

Medicare enrollment records show Jenny Joo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Healthcare Partners Affiliates Medical Group
6.1 mi
Addiction Medicine
14591 NEWPORT AVE
Tustin, CA 92780
  • Reassigned Medicare billing, California enrollment
  • 2,052 clinicians in this Medicare group
NPI 1891981502 (714) 442-4864
Los Angeles Hematology-Oncology Medical Group
30 mi
Specialist
1245 WILSHIRE BLVD STE 303
Los Angeles, CA 90017
  • Reassigned Medicare billing, California enrollment
  • 59 clinicians in this Medicare group
NPI 1457409674 (213) 977-1214

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 92708 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 14

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

FARSIO DENTAL CORPORATION
Dentist (Endodontics)
11180 WARNER AVE STE 351
FOUNTAIN VALLEY, CA 92708
Orange County (714) 546-1003
LOS ANGELES HEMATOLOGY-ONCOLOGY MEDICAL GROUP
Internal Medicine (Hematology & Oncology)
11180 WARNER AVE STE 351
FOUNTAIN VALLEY, CA 92708
Orange County (714) 698-0300
COMPASSIONATE CANCER CARE MEDICAL GROUP, INC.
Specialist
11180 WARNER AVE STE 351
FOUNTAIN VALLEY, CA 92708
Orange County (714) 698-0300
DR. ERIC H LEE M.D., PH.D.
Internal Medicine (Hematology & Oncology)
11180 WARNER AVE STE 351
FOUNTAIN VALLEY, CA 92708
Orange County (714) 698-0300
PEYMAN SALIMI-TARI M.D.
Specialist
11180 WARNER AVE STE 351
FOUNTAIN VALLEY, CA 92708
Orange County (714) 698-0300
STEVEN SIWEI YU MD
Internal Medicine (Hematology & Oncology)
11180 WARNER AVE STE 351
FOUNTAIN VALLEY, CA 92708
Orange County (714) 698-0300
LOS ANGELES HEMATOLOGY-ONCOLOGY MEDICAL GROUP
Non-Pharmacy Dispensing Site
11180 WARNER AVE STE 351
FOUNTAIN VALLEY, CA 92708
Orange County (714) 619-4974
DERRICK WEISON SU MD
Specialist
11180 WARNER AVE STE 351
FOUNTAIN VALLEY, CA 92708
Orange County (714) 698-0300

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 Jenny Joo's NPI number?

The NPI number for Jenny Joo is 1821411570. It was assigned to this individual provider in the NPPES registry on January 31, 2014.

Where is Jenny Joo located?

Jenny Joo practices at 11180 Warner Ave Ste 351, Fountain Valley, CA 92708. The listed phone number is (781) 642-1912.

What is Jenny Joo's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Jenny Joo enrolled in Medicare?

Yes. Jenny Joo is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Jenny Joo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jenny Joo reassigns Medicare benefits to 2 organizations: Healthcare Partners Affiliates Medical Group (Tustin, CA) and Los Angeles Hematology-Oncology Medical Group (Los Angeles, 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 Jenny Joo'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 Jenny Joo was last updated on April 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.