Tien-Hsin Chang, D.D.S.
NPI 1558978957 · Periodontics · Philadelphia, PA
Tien-Hsin Chang, D.D.S. is a Periodontics provider in Philadelphia, PA (NPI 1558978957).
Provider details
- NPI number
- 1558978957
- Entity type
- Individual
- Primary specialty
- PeriodonticsDental Providers
- Credential
- D.D.S.
- Sex
- Female
- Sole proprietor
- No
- License
- RFD000066 (PA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
5 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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.
$17 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
Additional practice locations (1)
- One Kneeland Street, 12 Floor, Periodontology ClinicBoston, MA 02111Phone: (617) 636-6646
Registry dates
- Enumerated
- 2020-09-29
- Last updated
- 2023-10-26
- Certified
- 2023-10-26
Frequently asked questions
- What is Tien-Hsin Chang's NPI number?
- Tien-Hsin Chang's National Provider Identifier (NPI) is 1558978957, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tien-Hsin Chang's specialty?
- Tien-Hsin Chang is listed in the NPPES registry with a primary specialty of Periodontics (Dental Providers).
- Where is Tien-Hsin Chang located?
- Tien-Hsin Chang's practice location on file with NPPES is 240 S 40th St, Philadelphia, PA 19104-6030.
- What is Tien-Hsin Chang's phone number?
- The practice phone number listed in the NPPES registry for Tien-Hsin Chang is (215) 898-8964.
- Is Tien-Hsin Chang's NPI active?
- Yes — Tien-Hsin Chang's NPI (1558978957) is active in the NPPES registry as of the last update on 2023-10-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.