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SHERYL KWAK M.D.
NPI 1104065259
Surgery in Fontana, CA

Active since February 12, 2009PECOS EnrolledAccepts Medicare Assignment
9961 SIERRA AVE, MEDICAL STAFF OFFICE, FONTANA, CA 92335(909) 427-6163 Get Directions Write a Review

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

About Sheryl Kwak M.d. NPPES

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

SHERYL KWAK M.D. (NPI 1104065259) is an individual surgery provider in Fontana, California, licensed in California (A139253) and active in the NPI registry since February 2009. She is enrolled in Medicare PECOS and is a graduate of University Of California, Davis School Of Medicine (2008).

NPPES Registry Identity

NPI1104065259
Entity TypeIndividualFemale
Primary Taxonomy208600000X
Provider Legal NameSHERYL KWAKCredential: M.D.
Location Address9961 SIERRA AVE, MEDICAL STAFF OFFICEFontana, CA 92335-6720
Mailing Address9961 Sierra Ave, Medical Staff OfficeFontana, CA 92335-6720 · (909) 427-6163
Phone(909) 427-6163
Sole ProprietorNo
Medical School CMSUniversity Of California, Davis School Of MedicineGraduated 2008
Enumeration DateFebruary 12, 2009
Last NPPES UpdateNovember 29, 2021
✔ NPI 1104065259 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
Licenses✔ Licensed in CA · A139253✔ Licensed in TX · BP10031148
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
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

Sheryl Kwak 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 ID1456656131
PECOS Enrollment IDI20160217001119
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
$91.88 typical visit price
range $59.60 – $179.42
Typical copayment $22.97 (range $14.90 – $44.85)
Most-billed visit code 99203
Established Patient
$74.08 typical visit price
range $19.37 – $146.42
Typical copayment $18.52 (range $4.84 – $36.60)
Most-billed visit code 99213
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
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 302-8018
MS. STELLA MARIS CARLOS R.D.
Dietitian, Registered
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 472-7185
KADETTE KELLY CRNA
Nurse Anesthetist, Certified Registered
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-3910
YAEL STEINFELD NP
Nurse Practitioner
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-3910
SCOTT SWARTZ NP
Nurse Practitioner
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-3910
ROBERT M. THEAL MD
Family Medicine
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-3910

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 Sheryl Kwak's NPI number?

The NPI number for Sheryl Kwak is 1104065259. It was assigned to this individual provider in the NPPES registry on February 12, 2009.

Where is Sheryl Kwak located?

Sheryl Kwak practices at 9961 Sierra Ave Medical Staff Office, Fontana, CA 92335. The listed phone number is (909) 427-6163.

What is Sheryl Kwak's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Sheryl Kwak enrolled in Medicare?

Yes. Sheryl Kwak 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 Sheryl Kwak 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.