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DR. TAKAKO GWEN IWASAKI M.D.
NPI 1639240237
Dermatology in Torrance, CA

Active since November 13, 2006PECOS EnrolledAccepts Medicare Assignment
75/100
CMS Quality Rating
4201 TORRANCE BLVD, SUITE 340, TORRANCE, CA 90503(310) 540-0079(310) 316-6871 Get Directions Write a Review

NPPES record last updated: January 9, 2015. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Takako Gwen Iwasaki M.d. NPPES

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

DR. TAKAKO GWEN IWASAKI M.D. (NPI 1639240237) is an individual dermatology provider in Torrance, California, licensed in California (G60009) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1985).

NPPES Registry Identity

NPI1639240237
Entity TypeIndividualFemale
Primary Taxonomy207N00000X
Provider Legal NameDR. TAKAKO GWEN IWASAKICredential: M.D.
Location Address4201 TORRANCE BLVD, SUITE 340Torrance, CA 90503-4504
Mailing Address4201 Torrance Blvd, Suite 340Torrance, CA 90503-4504 · (310) 540-0079 · Fax (310) 316-6871
Phone(310) 540-0079
Fax(310) 316-6871
Sole ProprietorYes
Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 1985
Enumeration DateNovember 13, 2006
Last NPPES UpdateJanuary 9, 2015
✔ NPI 1639240237 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License✔ Licensed in CA · G60009
Definition
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
4201 TORRANCE BLVD, Torrance, CA 90503
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Other Names 1

Professional Name (2)Dr. Takako Gwen Iwasaki M.d.

Other Identifiers 2

Medicare PING60009CA
Medicare UPINE 52041CA

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. Takako Gwen Iwasaki 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 ID3173655990
PECOS Enrollment IDI20100714000682
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 12

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.

Destruction of precancer skin growth, 2-14 growths 17003
This procedure involves removing 2-14 precancerous skin growths. The growths are treated to prevent them from potentially developing into skin cancer. The process is safe, with minimal discomfort, and promotes healthier skin.
1,486 services197 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
1,183 services430 patients
Destruction of precancer skin growth, 1 growth 17000
"Destruction of precancer skin growth" is a procedure that eliminates a single precancerous skin growth. This is done to prevent it from developing into skin cancer. The growth may be removed using various methods such as cryotherapy (freezing), laser therapy, or topical medications.
612 services236 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.
468 services289 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
308 services212 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.
204 services118 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90503 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored

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.

SOUTHERN CALIFORNIA PAIN CONSULTANTS INC
Pain Medicine (Interventional Pain Medicine)
4201 TORRANCE BLVD, SUITE 590
TORRANCE, CA 90503
Los Angeles County (310) 540-9888
LABWEST, INC
Clinical Medical Laboratory
4201 TORRANCE BLVD, STE 240
TORRANCE, CA 90503
Los Angeles County (310) 385-9240
DWIGHT WAYNE MALONE M.D.
Family Medicine
4201 TORRANCE BLVD, STE 790
TORRANCE, CA 90503
Los Angeles County (323) 779-2800
JEFFREY JAY COWAN MD INC & HEATHER MILLER MD INC A GENERAL PARTNERSHIP
Obstetrics & Gynecology
4201 TORRANCE BLVD, 600
TORRANCE, CA 90503
Los Angeles County (310) 540-5503
CALIFORNIA HEART & VASCULAR INSTITUTE
Internal Medicine (Cardiovascular Disease)
4201 TORRANCE BLVD, SUITE 790
TORRANCE, CA 90503
Los Angeles County (310) 370-4558
DR. WILLIAM CHUL KIM M.D.
Specialist
4201 TORRANCE BLVD, SUITE 190
TORRANCE, CA 90503
Los Angeles County (310) 543-2521
MRS. ELIZABETH Z UNDERHILL M.P.T.
Physical Therapist
4201 TORRANCE BLVD, SUITE 200
TORRANCE, CA 90503
Los Angeles County (310) 543-4727
DR. REYHANEH HAMIDI MD
Dermatology
4201 TORRANCE BLVD, SUITE 640
TORRANCE, CA 90503
Los Angeles County (310) 543-4444

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 Takako Iwasaki's NPI number?

The NPI number for Takako Iwasaki is 1639240237. It was assigned to this individual provider in the NPPES registry on November 13, 2006. The provider is also known as Dr. Takako Gwen Iwasaki M.D..

Where is Takako Iwasaki located?

Takako Iwasaki practices at 4201 Torrance Blvd Suite 340, Torrance, CA 90503. The listed phone number is (310) 540-0079.

What is Takako Iwasaki's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Takako Iwasaki enrolled in Medicare?

Yes. Takako Iwasaki 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 Takako Iwasaki was last updated on January 9, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.