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FREDERICK CHUA M.D.
NPI 1477180701
Hospitalist in Orange, CA

Active since March 25, 2020PECOS EnrolledAccepts Medicare Assignment
101 THE CITY DR S STE 400, ORANGE, CA 92868(714) 456-5691(714) 456-8874 Get Directions Write a Review

NPPES record last updated: July 24, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 24, 2024, Mar 25, 2020 (2 updates tracked since 2020).

About Frederick Chua M.d. NPPES

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

FREDERICK CHUA M.D. (NPI 1477180701) is an individual hospitalist provider in Orange, California, licensed in California (A180832) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS and is a graduate of Boston University School Of Medicine (2020).

NPPES Registry Identity

NPI1477180701
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameFREDERICK CHUACredential: M.D.
Location Address101 THE CITY DR S STE 400Orange, CA 92868-3201
Mailing Address1010 W La Veta Ave Ste 610Orange, CA 92868-4306 · (714) 285-2311 · Fax (714) 285-2319
Phone(714) 456-5691
Fax(714) 456-8874
Sole ProprietorNo
Medical School CMSBoston University School Of MedicineGraduated 2020
Enumeration DateMarch 25, 2020
Last NPPES UpdateJuly 24, 20242 updates tracked since enumeration
NPPES CertifiedJuly 24, 2024
✔ NPI 1477180701 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in CA · A180832
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X · License A180832 (CA)
101 THE CITY DR S STE 400, Orange, CA 92868
Open in Google Maps ↗

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

Frederick Chua M.d. 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.

PECOS PAC ID1951767326
PECOS Enrollment IDI20230510002150
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

3

Medicare enrollment records show Frederick Chua reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The Regents Of The University Of California-Irvine
0.3 mi
Hospitalist
101 THE CITY DR S BLDG 1
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 250 clinicians in this Medicare group
NPI 1154479723 (714) 456-7002
Alex Zand, MD A Professional Corporation
1.6 mi
Internal Medicine
1010 W LA VETA AVE, STE 610
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 14 clinicians in this Medicare group
NPI 1922299023 (714) 285-2311
Memorialcare Medical Foundation
6.4 mi
Clinic/Center
17360 BROOKHURST ST
Fountain Valley, CA 92708
  • Reassigned Medicare billing, California enrollment
  • 948 clinicians in this Medicare group
NPI 1205167350 (877) 696-3622

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

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
406 services178 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
215 services210 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
167 services78 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
136 services136 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
56 services56 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92868 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
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 20

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

BRIAN DIEP MD
Student in an Organized Health Care Education/Training Program
101 THE CITY DR S STE 400
ORANGE, CA 92868
Orange County (714) 456-5691
ANISH SAI KOLAN
Student in an Organized Health Care Education/Training Program
101 THE CITY DR S STE 400
ORANGE, CA 92868
Orange County (714) 456-5691
MICHELLE T NGUYEN
Student in an Organized Health Care Education/Training Program
101 THE CITY DR S STE 400
ORANGE, CA 92868
Orange County (714) 456-5691
DR. JOSEPH CARTON MD
Student in an Organized Health Care Education/Training Program
101 THE CITY DR S STE 400
ORANGE, CA 92868
Orange County (714) 456-5691
ERICA SHIN
Student in an Organized Health Care Education/Training Program
101 THE CITY DR S STE 400
ORANGE, CA 92868
Orange County (714) 456-5691
TIMOTHY CHANG
Student in an Organized Health Care Education/Training Program
101 THE CITY DR S STE 400
ORANGE, CA 92868
Orange County (714) 456-5691
SHANT ABRHAMIAN
Student in an Organized Health Care Education/Training Program
101 THE CITY DR S STE 400
ORANGE, CA 92868
Orange County (714) 456-5691
MICHELLE M NGUYEN
Psychiatry & Neurology (Neurology)
101 THE CITY DR S STE 400
ORANGE, CA 92868
Orange County (714) 456-5691

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 Frederick Chua's NPI number?

The NPI number for Frederick Chua is 1477180701. It was assigned to this individual provider in the NPPES registry on March 25, 2020.

Where is Frederick Chua located?

Frederick Chua practices at 101 The City Dr S Ste 400, Orange, CA 92868. The listed phone number is (714) 456-5691.

What is Frederick Chua's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Frederick Chua enrolled in Medicare?

Yes. Frederick Chua 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 Frederick Chua's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Frederick Chua reassigns Medicare benefits to 3 organizations: The Regents Of The University Of California-Irvine (Orange, CA), Alex Zand, MD A Professional Corporation (Orange, CA) and Memorialcare Medical Foundation (Fountain Valley, 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 Frederick Chua'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 Frederick Chua was last updated on July 24, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.