WILLIAM Y. CHANG MD – NPI #1003236688
Internal Medicine

An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Health Care Provider Taxonomy Code for Internal Medicine

WILLIAM CHANG is a physician located in MONTEREY PARK, CA. NPPES has assigned the NPI number 1003236688 to WILLIAM CHANG on April 22, 2014. It is a Type-1 NPI, indicating this NPI number is associated with an individual. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207RC0200X from the Health Care Provider Taxonomy code set, which is classified as Internal Medicine, specializing in Critical Care Medicine

The NPI profile was previously updated about 5 years ago on Aug 18, 2021. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for WILLIAM CHANG below.

NPI Profile for
WILLIAM Y. CHANG

NPI Number
1003236688
Enumeration Date

(more than 12 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
WILLIAM Y. CHANG
Credentials
MD
Primary location
500 N GARFIELD AVE STE 204
MONTEREY PARK, CA 91754-1242
Phone: (626) 280-4393 Fax:
1 Other location(s):
8700 Beverly Blvd
West Hollywood, CA 90048-1804
Phone: (310) 423-3277
Mailing address
Same as primary location
Sole Proprietor
No
Updated
Certification Date
Aug 18, 2021

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207RC0200X
- Internal Medicine / Critical Care Medicine (Primary)		 CA A140305
207RP1001X
- Internal Medicine / Pulmonary Disease		 CA A140305

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Additional Information

Education
ALBANY MEDICAL COLLEGE OF UNION UNIVERSITY - Graduated 2014
Offers Telehealth Services
Yes - Telehealth services allows you to talk to your health care provider using audio/video communications, such as Zoom, without actually going in to the doctor's office
Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
WILLIAM CHANG is affiliated with the following medical group(s):
  • HOSPITAL
    • ALHAMBRA HOSPITAL MEDICAL CENTER
      100 S RAYMOND AVE
      ALHAMBRA, CA 91801
    • BEVERLY HOSPITAL
      309 W BEVERLY BLVD
      MONTEBELLO, CA 90640
    • GARFIELD MEDICAL CENTER
      525 N GARFIELD AVE
      MONTEREY PARK, CA 91754
    • MONTEREY PARK HOSPITAL
      900 S ATLANTIC BLVD
      MONTEREY PARK, CA 91754
    • SAN GABRIEL VALLEY MEDICAL CENTER
      438 W LAS TUNAS DRIVE
      SAN GABRIEL, CA 91776
  • HOSPICE
    • PREMIUM HOSPICE, INC.
      12241 FIRESTONE BLVD., SUITE A & B
      NORWALK, CA 90650

Why is my NPI data (personal information) being displayed publicly?
If you have an active NPI profile, your profile is required to be disclosed according to the FOIA and eFOIA. HIPAA also requires covered providers to share their NPI with other providers, health plans, clearinghouses and any entity that may need it for billing purposes.

How do I correct or change the NPI data displayed here?
At any time, providers can make changes to their NPI profile at NPPES. Login to NPPES to make changes online or call (800) 465-3203 for assistance. Changes made at NPPES will be reflected on this web site within a few days.

Can I hide my NPI profile from the public?
Unfortunately, No. The NPPES discloses health care provider data under the Freedom of Information Act to the public, which means anyone may request such information directly from the National Plan & Provider Enumeration System. See the complete CMS Data Dissemination Notice here.