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CAROLINE YU
NPI 1154972727
Nurse Practitioner - Acute Care in Alhambra, CA

Active since September 25, 2019PECOS Enrolled
1680 S GARFIELD AVE STE 204, ALHAMBRA, CA 91801(818) 839-5100 Get Directions Write a Review

NPPES record last updated: October 31, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 31, 2019, Sep 25, 2019 (2 updates tracked since 2019).

About Caroline Yu NPPES

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

CAROLINE YU (NPI 1154972727) is an individual acute care provider in Alhambra, California, licensed in California (95012616) and active in the NPI registry since September 2019. She is enrolled in Medicare PECOS and maintains a secondary practice location in Alhambra.

NPPES Registry Identity

NPI1154972727
Entity TypeIndividualFemale
Primary Taxonomy363LA2100X
Provider Legal NameCAROLINE YU
Location Address1680 S GARFIELD AVE STE 204Alhambra, CA 91801-5413
Mailing Address25 Indian Pond RdWestborough, MA 01581-1145 · (508) 488-0317
Phone(818) 839-5100
Sole ProprietorNo
Enumeration DateSeptember 25, 2019
Last NPPES UpdateOctober 31, 20192 updates tracked since enumeration
✔ NPI 1154972727 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2100X
License✔ Licensed in CA · 95012616
1680 S GARFIELD AVE STE 204, Alhambra, CA 91801
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Secondary Practice Location 1

Location 11680 S Garfield Ave Ste 204Alhambra, CA 91801-5413 · Phone (818) 839-5100

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Caroline Yu 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 Caroline Yu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Amg, A Professional Medical Corporation
1.1 mi
Internal Medicine
1658 W VALLEY BLVD STE 120
Alhambra, CA 91803
  • Reassigned Medicare billing, California enrollment
  • 48 clinicians in this Medicare group
NPI 1558306266 (626) 282-0282
Enhanced Care Management
2.4 mi
Case Manager/Care Coordinator
1668 S GARFIELD AVE FL 2
Alhambra, CA 91801
  • Reassigned Medicare billing, California enrollment
  • 11 clinicians in this Medicare group
NPI 1588427587 (626) 282-0288

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 91801 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 8

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

KRISTI MAN-LIN WANG PA-C
Physician Assistant
1680 S GARFIELD AVE STE 204
ALHAMBRA, CA 91801
Los Angeles County (818) 839-5200
YING DONG PA-C
Physician Assistant (Surgical)
1680 S GARFIELD AVE STE 204
ALHAMBRA, CA 91801
Los Angeles County (818) 839-5200
HUAJUN HE
Physician Assistant
1680 S GARFIELD AVE STE 204
ALHAMBRA, CA 91801
Los Angeles County (818) 839-5200
MR. SHANQIANG ZHANG
Physician Assistant (Medical)
1680 S GARFIELD AVE STE 204
ALHAMBRA, CA 91801
Los Angeles County (818) 839-5200
DORIAN KIM
Physician Assistant
1680 S GARFIELD AVE STE 204
ALHAMBRA, CA 91801
Los Angeles County (818) 844-5300
THOMAS V LONG MD.
Internal Medicine
1680 S GARFIELD AVE STE 204
ALHAMBRA, CA 91801
Los Angeles County (818) 839-5200
LULU GU
Nurse Practitioner
1680 S GARFIELD AVE STE 204
ALHAMBRA, CA 91801
Los Angeles County (818) 839-5200
DR. LIDE LIU M.D.
Hospitalist
1680 S GARFIELD AVE STE 204
ALHAMBRA, CA 91801
Los Angeles County (818) 839-5200

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 Caroline Yu's NPI number?

The NPI number for Caroline Yu is 1154972727. It was assigned to this individual provider in the NPPES registry on September 25, 2019.

Where is Caroline Yu located?

Caroline Yu practices at 1680 S Garfield Ave Ste 204, Alhambra, CA 91801. The listed phone number is (818) 839-5100.

What is Caroline Yu's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Is Caroline Yu enrolled in Medicare?

Yes. Caroline Yu is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Caroline Yu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Caroline Yu reassigns Medicare benefits to 2 organizations: Amg, A Professional Medical Corporation (Alhambra, CA) and Enhanced Care Management (Alhambra, 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 Caroline Yu'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 Caroline Yu was last updated on October 31, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.