WALTER S CHANG MD
NPI 1689044760
Family Medicine in Gardena, CA

Active since October 01, 2015PECOS EnrolledAccepts Medicare Assignment
15446 S WESTERN AVE, GARDENA, CA 90249(833) 574-2273 Get Directions Write a Review

NPPES record last updated: February 20, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Dec 8, 2021, Jan 6, 2021, Apr 2, 2019 and 1 more (4 updates tracked since 2015).

About Walter S Chang Md NPPES

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

WALTER S CHANG MD (NPI 1689044760) is an individual family medicine provider in Gardena, California, licensed in California (A158199) and active in the NPI registry since October 2015. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of California, Davis School Of Medicine (2017).

NPPES Registry Identity

NPI1689044760
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameWALTER S CHANGCredential: MD
Location Address15446 S WESTERN AVEGardena, CA 90249-4319
Mailing Address15446 S Western AveGardena, CA 90249-4319 · (833) 574-2273 · Fax (310) 217-5333
Sole ProprietorNo
Medical School CMSUniversity Of California, Davis School Of MedicineGraduated 2017
Enumeration DateOctober 1, 2015
Last NPPES UpdateFebruary 20, 20264 updates tracked since enumeration
NPPES CertifiedFebruary 20, 2026
NPI 1689044760 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License Licensed in CA · A158199
Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

15446 S WESTERN AVE, Gardena, CA 90249

Secondary Practice Locations 2

Location 14610 X StSacramento, CA 95817-2200 · Phone (408) 839-7368
Location 2450 E Spring St Ste 1Long Beach, CA 90806-1625 · Phone (408) 933-0050 · Fax (408) 933-0078

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

Walter S Chang 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 ID6305186289
PECOS Enrollment IDI20200716003730
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.

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.
13 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90249 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
$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 20

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

Family Medicine
15446 S WESTERN AVE, SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP
GARDENA, CA 90249
Family Medicine
15446 S WESTERN AVE
GARDENA, CA 90249
Pharmacist
15446 S WESTERN AVE
GARDENA, CA 90249
Optometrist
15446 S WESTERN AVE
GARDENA, CA 90249
Pediatrics
15446 S WESTERN AVE
GARDENA, CA 90249
Physical Therapist
15446 S WESTERN AVE
GARDENA, CA 90249
Pharmacist
15446 S WESTERN AVE
GARDENA, CA 90249
Pharmacist
15446 S WESTERN AVE
GARDENA, CA 90249

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 Walter Chang's NPI number?

The NPI number for Walter Chang is 1689044760. It was assigned to this individual provider in the NPPES registry on October 1, 2015.

Where is Walter Chang located?

Walter Chang practices at 15446 S Western Ave, Gardena, CA 90249. The listed phone number is (833) 574-2273.

What is Walter Chang's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Walter Chang enrolled in Medicare?

Yes. Walter Chang 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 Walter Chang was last updated on February 20, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.