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Export Provider Record NPI 1396857181
Alvin ChangM.D.
Active
NPI Number1396857181
NPI TypeNPI-1 Individual
SpecialtyInternal Medicine, Geriatric Medicine
Provider Details
NPI1396857181
NPI TypeNPI-1 Individual
StatusActive
Enumeration Date2006-08-31
Last Updated2016-09-19
Mailing Address1101 Bryan Ave, Suite E
Tustin, CA 92780-4401
United States
Phone: (714) 352-5800 | Fax: (714) 352-5801
📍 View Map
Primary Practice Address1101 Bryan Ave, Suite E
Tustin, CA 92780-4401
United States
Phone: (714) 352-5800 | Fax: (714) 352-5801
📍 View Map
Other Identifiers
IssuerStateNumberOther Issuer
MEDICAIDCA00A553300-
Other (non-Medicare)CA1699040170OCSC group NPI
Other (non-Medicare)CADT9847OCSC Group PTAN
Other (non-Medicare)-W18492MEDICARE GRP NUMBER
Taxonomy / Specialty
PrimaryTaxonomy Code & DescriptionStateLicense Number
Yes207RG0300X – Internal Medicine, Geriatric MedicineCAA55330
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About NPI 1396857181

Alvin Chang M.D. is a healthcare provider registered in the CMS NPPES NPI Registry with NPI number 1396857181. The primary specialty listed is Internal Medicine, Geriatric Medicine. The provider is located in Tustin, CA. This NPI is classified as a Type 1 (Individual) NPI and is currently active. The NPI was first enumerated (assigned) on 2006-08-31. All data is sourced directly from the official CMS NPPES public API and is updated daily.

Frequently Asked Questions

What is NPI 1396857181?

NPI 1396857181 belongs to Alvin Chang M.D., a Internal Medicine, Geriatric Medicine in Tustin, CA. It is a Type 1 Individual NPI registered in the CMS NPPES NPI Registry.

Is NPI 1396857181 active?

The current status of NPI 1396857181 in the NPPES registry is Active. The record was last updated on 2016-09-19.

What specialty is NPI 1396857181?

NPI 1396857181 is classified under the taxonomy Internal Medicine, Geriatric Medicine. Taxonomy codes in NPPES are maintained by the National Uniform Claim Committee (NUCC) and identify the provider's type, classification, and specialization.

How do I verify NPI 1396857181?

You can verify NPI 1396857181 at the official CMS NPPES website at npiregistry.cms.hhs.gov or using our free NPI Lookup tool above. All data shown on this page is sourced directly from the official NPPES public API and is updated daily by CMS.

What address is on file for NPI 1396857181?

The primary practice address on file for NPI 1396857181 is 1101 Bryan Ave, Tustin, CA 92780-4401. This address is registered in the NPPES system and providers are required to update it within 30 days of any change.

When was NPI 1396857181 issued?

NPI 1396857181 was first issued (enumerated) on 2006-08-31. The NPPES record was last updated on 2016-09-19.

Practice Location Map

Alvin Chang is located at 1101 Bryan Ave, Tustin, CA. Use the map below to find directions or verify the practice location.

📍 1101 Bryan Ave, Tustin, CA 92780-4401  ·  Open in Google Maps ↗

Related Healthcare Providers

The following providers share the same practice location, specialty, or state as Alvin Chang. All records sourced from the CMS NPPES registry.

License Information

The following state license numbers are on file in the NPPES registry for NPI 1396857181. For license status verification, contact the relevant state licensing board directly.

Specialty / TaxonomyLicense NumberState
Internal Medicine, Geriatric MedicineA55330CA
Data Verified from CMS NPPES Last synced: 2026-08-25 · Source: npiregistry.cms.hhs.gov · 45 CFR Part 162