Calvin Chang, DDS
NPI 1285289215 · Dentist · Ashton, MD
Calvin Chang, DDS is a Dentist provider in Ashton, MD (NPI 1285289215).
Provider details
- NPI number
- 1285289215
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Dental Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
83% 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.
$18 across 1 record (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
- 2019-08-06
- Last updated
- 2021-03-02
- Certified
- 2021-03-02
Frequently asked questions
- What is Calvin Chang's NPI number?
- Calvin Chang's National Provider Identifier (NPI) is 1285289215, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Calvin Chang's specialty?
- Calvin Chang is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Calvin Chang located?
- Calvin Chang's practice location on file with NPPES is 16610 Harbour Town Dr, Ashton, MD 20861-4084.
- What is Calvin Chang's phone number?
- The practice phone number listed in the NPPES registry for Calvin Chang is (301) 633-4640.
- Is Calvin Chang's NPI active?
- Yes — Calvin Chang's NPI (1285289215) is active in the NPPES registry as of the last update on 2021-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.