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ELMER CHANG M.D.
NPI 1710065578
Internal Medicine in Union City, CA

Active since November 01, 2006PECOS EnrolledAccepts Medicare Assignment
3553 WHIPPLE RD, UNION CITY, CA 94587(510) 454-1000 Get Directions Write a Review

NPPES record last updated: December 6, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Elmer Chang M.d. NPPES

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

ELMER CHANG M.D. (NPI 1710065578) is an individual internal medicine provider in Union City, California, licensed in California (A68792) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1996).

NPPES Registry Identity

NPI1710065578
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameELMER CHANGCredential: M.D.
Location Address3553 WHIPPLE RDUnion City, CA 94587-1507
Mailing Address3553 Whipple RdUnion City, CA 94587-1507 · (510) 454-1000
Phone(510) 454-1000
Sole ProprietorNo
Medical School CMSOtherGraduated 1996
Enumeration DateNovember 1, 2006
Last NPPES UpdateDecember 6, 2021
✔ NPI 1710065578 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A68792
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
3553 WHIPPLE RD, Union City, CA 94587
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Other Identifiers 1

Medicaid00A687920CA

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

Elmer Chang 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 ID7618157207
PECOS Enrollment IDI20110215000346
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 94587 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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.

JAYASUDHA S PALAVALLI M.D.
Internal Medicine
3553 WHIPPLE RD
UNION CITY, CA 94587
Alameda County (510) 454-1000
CATHERINE MICHELE KNOX M.D.
Ophthalmology
3553 WHIPPLE RD
UNION CITY, CA 94587
Alameda County (510) 454-1000
PATRICIA PUI YEE LEE M.D.
Obstetrics & Gynecology
3553 WHIPPLE RD
UNION CITY, CA 94587
Alameda County (510) 454-1000
TANIA CHOPRA
Pharmacist
3553 WHIPPLE RD, 3RD FLOOR, MED STATION #4
UNION CITY, CA 94587
Alameda County (510) 675-2215
TRIXY SYU D.O.
Physical Medicine & Rehabilitation (Neuromuscular Medicine)
3553 WHIPPLE RD
UNION CITY, CA 94587
Alameda County (510) 675-4807
ANJANA VINAYAK HARNOOR MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
3553 WHIPPLE RD
UNION CITY, CA 94587
Alameda County (510) 675-4013
MS. NATALYA NICOLOFF N.P.
Nurse Practitioner (Adult Health)
3553 WHIPPLE RD
UNION CITY, CA 94587
Alameda County (510) 454-1000
NEDDA SHAKIB MISHERGHI O.D.
Optometrist
3553 WHIPPLE RD
UNION CITY, CA 94587
Alameda County (510) 454-1000

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 Elmer Chang's NPI number?

The NPI number for Elmer Chang is 1710065578. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Where is Elmer Chang located?

Elmer Chang practices at 3553 Whipple Rd, Union City, CA 94587. The listed phone number is (510) 454-1000.

What is Elmer Chang's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Elmer Chang enrolled in Medicare?

Yes. Elmer 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 Elmer Chang was last updated on December 6, 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.