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DR. YAOJEN CHANG DDS
NPI 1891893152
Dentist in West Covina, CA

Active since September 20, 2006PECOS Enrolled
1129 SOUTH GLENDORA AVENUE, WEST COVINA, CA 91790(626) 919-7707(626) 851-0985 Get Directions Write a Review

NPPES record last updated: February 13, 2016. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Yaojen Chang Dds NPPES

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

DR. YAOJEN CHANG DDS (NPI 1891893152) is an individual dentist in West Covina, California, licensed in California (52589) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1891893152
Entity TypeIndividualMale
Primary Taxonomy122300000X
Provider Legal NameDR. YAOJEN CHANGCredential: DDS
Location Address1129 SOUTH GLENDORA AVENUEWest Covina, CA 91790
Mailing Address9804 Central AveMontclair, CA 91763-2817 · (909) 625-9100
Phone(626) 919-7707
Fax(626) 851-0985
Sole ProprietorNo
Enumeration DateSeptember 20, 2006
Last NPPES UpdateFebruary 13, 2016
✔ NPI 1891893152 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentistDental Providers
Taxonomy Code122300000X
License✔ Licensed in CA · 52589
Definition
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
1129 SOUTH GLENDORA AVENUE, West Covina, CA 91790
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BEST Life, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Yaojen Chang Dds is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 91790 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.

Other Providers at the Same Location NPPES 2

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

KOUZ AND BATO DENTAL PARTNERSHIP
Dentist (General Practice)
1129 SOUTH GLENDORA AVENUE
WEST COVINA, CA 91790
Los Angeles County (626) 919-7707
DR. RAMI MOUZAYEK KOUZ DDS
Dentist
1129 SOUTH GLENDORA AVENUE
WEST COVINA, CA 91790
Los Angeles County (626) 919-7707

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 Yaojen Chang's NPI number?

The NPI number for Yaojen Chang is 1891893152. It was assigned to this individual provider in the NPPES registry on September 20, 2006.

Where is Yaojen Chang located?

Yaojen Chang practices at 1129 South Glendora Avenue, West Covina, CA 91790. The listed phone number is (626) 919-7707.

What is Yaojen Chang's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

Is Yaojen Chang enrolled in Medicare?

Yes. Yaojen Chang is registered in the Medicare PECOS enrollment system.

What insurance does Yaojen Chang accept?

Health plans from BEST Life, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and HRI Dental & Vision and 3 other insurers list Yaojen Chang as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Yaojen Chang was last updated on February 13, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.