PATRICIA C. HSIA MD
NPI 1174694087
Internal Medicine - Gastroenterology in Fontana, CA

Active since November 13, 2006PECOS EnrolledAccepts Medicare Assignment
9961 SIERRA AVE, FONTANA, CA 92335(909) 427-3910 Get Directions Write a Review

NPPES record last updated: November 29, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Patricia C. Hsia Md NPPES

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

PATRICIA C. HSIA MD (NPI 1174694087) is an individual gastroenterology provider in Fontana, California, licensed in California (G67035) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS and is a graduate of State University Of New York At Buffalo School Of Medicine (1985).

NPPES Registry Identity

NPI1174694087
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NamePATRICIA C. HSIACredential: MD
Location Address9961 SIERRA AVEFontana, CA 92335-6720
Mailing Address9961 Sierra AveFontana, CA 92335-6720 · (909) 427-3910
Sole ProprietorNo
Medical School CMSState University Of New York At Buffalo School Of MedicineGraduated 1985
Enumeration DateNovember 13, 2006
Last NPPES UpdateNovember 29, 2021
NPI 1174694087 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 · G67035
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.
9961 SIERRA AVE, Fontana, CA 92335

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

Patricia C. Hsia Md 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 ID2264558600
PECOS Enrollment IDI20100923000311
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92335 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
$136.04 typical visit price
range $59.60 – $179.42
Typical copayment $34.01 (range $14.90 – $44.85)
Most-billed visit code 99204
Established Patient
$104.64 typical visit price
range $19.37 – $146.42
Typical copayment $26.16 (range $4.84 – $36.60)
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.

Physical Therapist
9961 SIERRA AVE, BUILDING 3A
FONTANA, CA 92335
Pediatrics
9961 SIERRA AVE, KAISER PERMANENTE FONTANA - PEDIATRICS
FONTANA, CA 92335
Pharmacist
9961 SIERRA AVE
FONTANA, CA 92335
Dietitian, Registered
9961 SIERRA AVE
FONTANA, CA 92335
Nurse Anesthetist, Certified Registered
9961 SIERRA AVE
FONTANA, CA 92335
Nurse Practitioner
9961 SIERRA AVE
FONTANA, CA 92335
Nurse Practitioner
9961 SIERRA AVE
FONTANA, CA 92335
Family Medicine
9961 SIERRA AVE
FONTANA, CA 92335

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 Patricia Hsia's NPI number?

The NPI number for Patricia Hsia is 1174694087. It was assigned to this individual provider in the NPPES registry on November 13, 2006.

Where is Patricia Hsia located?

Patricia Hsia practices at 9961 Sierra Ave, Fontana, CA 92335. The listed phone number is (909) 427-3910.

What is Patricia Hsia's specialty?

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

Is Patricia Hsia enrolled in Medicare?

Yes. Patricia Hsia 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 Patricia Hsia was last updated on November 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.