Michael Chang, DDS
NPI 1639304280 · Orthodontics and Dentofacial Orthopedics Dentistry · San Carlos, CA
Enrolled with Medicare as Order and Referring Only - Oral Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Chang, DDS is a Orthodontics and Dentofacial Orthopedics Dentistry provider in San Carlos, CA (NPI 1639304280).
Provider details
- NPI number
- 1639304280
- Entity type
- Individual
- Primary specialty
- Orthodontics and Dentofacial Orthopedics DentistryDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- No
- License
- 54976 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
17 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$57 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-05-27
- Last updated
- 2024-03-07
- Certified
- 2024-02-28
Frequently asked questions
- What is Michael Chang's NPI number?
- Michael Chang's National Provider Identifier (NPI) is 1639304280, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Chang's specialty?
- Michael Chang is listed in the NPPES registry with a primary specialty of Orthodontics and Dentofacial Orthopedics Dentistry (Dental Providers).
- Where is Michael Chang located?
- Michael Chang's practice location on file with NPPES is 10 El Camino Real Ste 201, San Carlos, CA 94070-2451.
- What is Michael Chang's phone number?
- The practice phone number listed in the NPPES registry for Michael Chang is (650) 598-0888.
- Does Michael Chang accept Medicare?
- Michael Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Chang's NPI active?
- Yes — Michael Chang's NPI (1639304280) is active in the NPPES registry as of the last update on 2024-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.