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DR. SANDRA SOOHYUN KWAK M.D.
NPI 1316011364
Internal Medicine - Endocrinology, Diabetes & Metabolism in Newport Beach, CA

Active since November 20, 2006Opted out of Medicare · through Apr 1, 2027
520 SUPERIOR AVE STE 310, NEWPORT BEACH, CA 92663(949) 645-8800(949) 645-8844 Get Directions Write a Review

NPPES record last updated: August 10, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Sandra Soohyun Kwak M.d. NPPES

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

DR. SANDRA SOOHYUN KWAK M.D. (NPI 1316011364) is an individual endocrinology, diabetes & metabolism provider in Newport Beach, California, licensed in California (A88895) and active in the NPI registry since November 2006. She has opted out of Medicare through April 1, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1316011364
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameDR. SANDRA SOOHYUN KWAKCredential: M.D.
Location Address520 SUPERIOR AVE STE 310Newport Beach, CA 92663-3667
Mailing AddressPo Box 28884Belfast, ME 04915-2040 · (949) 645-8800 · Fax (949) 645-8844
Phone(949) 645-8800
Fax(949) 645-8844
Sole ProprietorNo
Enumeration DateNovember 20, 2006
Last NPPES UpdateAugust 10, 2021
NPPES CertifiedAugust 10, 2021
✔ NPI 1316011364 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in CA · A88895
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
520 SUPERIOR AVE STE 310, Newport Beach, CA 92663
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Sandra Soohyun Kwak M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from April 1, 2017 through April 1, 2027.

Opt-Out Effective DateApril 1, 2017
Opt-Out In Effect ThroughApril 1, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92663 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

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

SANDRA S. KWAK, M.D., INC.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
520 SUPERIOR AVE STE 310
NEWPORT BEACH, CA 92663
Orange County (949) 645-8800

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 Sandra Kwak's NPI number?

The NPI number for Sandra Kwak is 1316011364. It was assigned to this individual provider in the NPPES registry on November 20, 2006.

Where is Sandra Kwak located?

Sandra Kwak practices at 520 Superior Ave Ste 310, Newport Beach, CA 92663. The listed phone number is (949) 645-8800.

What is Sandra Kwak's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Sandra Kwak enrolled in Medicare?

No. Sandra Kwak has opted out of Medicare through April 1, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Sandra Kwak was last updated on August 10, 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.