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YI-CHIA WU M.D.
NPI 1174058341
Internal Medicine - Gastroenterology in Covina, CA

Active since April 25, 2017PECOS EnrolledAccepts Medicare Assignment
500 W SAN BERNARDINO RD, STE B, COVINA, CA 91722(626) 960-2326 Get Directions Write a Review

NPPES record last updated: May 6, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 6, 2026, May 27, 2025, May 23, 2017 and 1 more (4 updates tracked since 2017).

About Yi-chia Wu M.d. NPPES

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

YI-CHIA WU M.D. (NPI 1174058341) is an individual gastroenterology provider in Covina, California, licensed in California (A187617) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS and is a graduate of Medical College Of Wisconsin (2017).

NPPES Registry Identity

NPI1174058341
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NameYI-CHIA WUCredential: M.D.
Location Address500 W SAN BERNARDINO RD, STE BCovina, CA 91722
Mailing Address500 W San Bernardino Rd, Ste BCovina, CA 91722 · (626) 960-2326 · Fax (626) 960-9796
Phone(626) 960-2326
Sole ProprietorNo
Medical School CMSMedical College Of WisconsinGraduated 2017
Enumeration DateApril 25, 2017
Last NPPES UpdateMay 6, 20264 updates tracked since enumeration
NPPES CertifiedMay 6, 2026
✔ NPI 1174058341 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in CA · A187617
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
500 W SAN BERNARDINO RD, Covina, CA 91722
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Yi-chia Wu 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 ID7517203821
PECOS Enrollment IDI20230906003405
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.

Areas of Expertise CMS Part B claims 11

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 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.
504 services246 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.
266 services251 patients
Pathology examination of tissue using a microscope, intermediate complexity 88305
A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.
166 services57 patients
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500
Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.
102 services99 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
71 services54 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
69 services67 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91722 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 3

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

DR. ANNE VIOLET QUISMORIO MD
Internal Medicine (Rheumatology)
500 W SAN BERNARDINO RD, SUITE A
COVINA, CA 91722
Los Angeles County (626) 966-1909
DR. SYED MOHSIN SAGHIR
Internal Medicine (Gastroenterology)
500 W SAN BERNARDINO RD
COVINA, CA 91722
Los Angeles County (626) 960-2326
WYLIE DOUGLASS NP
Family Medicine
500 W SAN BERNARDINO RD
COVINA, CA 91722
Los Angeles County (626) 960-2326

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 Yi-chia Wu's NPI number?

The NPI number for Yi-chia Wu is 1174058341. It was assigned to this individual provider in the NPPES registry on April 25, 2017.

Where is Yi-chia Wu located?

Yi-chia Wu practices at 500 W San Bernardino Rd Ste B, Covina, CA 91722. The listed phone number is (626) 960-2326.

What is Yi-chia Wu's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Yi-chia Wu enrolled in Medicare?

Yes. Yi-chia Wu 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.

When was this NPI record last updated?

The NPPES record for Yi-chia Wu was last updated on May 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.