DR. WEI CHAN HWANG M.D.
NPI 1104976141
Internal Medicine in Fontana, CA

Q: What is Wei Chan Hwang's NPI number?

The NPI number for Wei Chan Hwang is 1104976141. It was assigned to this individual provider in the NPPES registry on January 11, 2007.

Q: What is Wei Chan Hwang's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Wei Chan Hwang was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.

Active since January 11, 2007PECOS EnrolledAccepts Medicare Assignment

9961 SIERRA AVE, MEDICAL STAFF OFFICE/ KAISER PERMANENTE FONTANA, FONTANA, CA 92335(909) 427-2673 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 7, 2023, Nov 22, 2021 (2 updates tracked since 2021).

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About Dr. Wei Chan Hwang M.d. NPPES

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

DR. WEI CHAN HWANG M.D. (NPI 1104976141) is an individual internal medicine provider in Fontana, California, licensed in California (A111144) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS and is a graduate of Yale University School Of Medicine (2004).

NPPES Registry Identity

NPI1104976141

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. WEI CHAN HWANGCredential: M.D.

Location Address9961 SIERRA AVE, MEDICAL STAFF OFFICE/ KAISER PERMANENTE FONTANAFontana, CA 92335-6720

Mailing Address9961 Sierra Ave, Medical Staff Office/kaiser Permanente FontanaFontana, CA 92335-6720 · (909) 427-2673

Phone(909) 427-2673

Sole ProprietorNo

Medical School CMSYale University School Of MedicineGraduated 2004

Enumeration DateJanuary 11, 2007

Last NPPES UpdateMarch 7, 20232 updates tracked since enumeration

✔ NPI 1104976141 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Licenses✔ Licensed in CA · A111144✔ Licensed in RI · MD12719✔ Licensed in MA · 230797

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

9961 SIERRA AVE, Fontana, CA 92335

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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

Dr. Wei Chan Hwang 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 ID7214038744

PECOS Enrollment IDI20110509000860

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

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.

43 services13 patients

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.

SHEILA ANN VANALLEN PT

Physical Therapist

9961 SIERRA AVE, BUILDING 3A
FONTANA, CA 92335

San Bernardino County (909) 427-7727

MR. JAMES DAVID KILLEEN III M.D.

Pediatrics

9961 SIERRA AVE, KAISER PERMANENTE FONTANA - PEDIATRICS
FONTANA, CA 92335

San Bernardino County (909) 427-6960

MR. DHIRESH N PATEL RPH

Pharmacist