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Clayton Chang, M.D
NPI 1346204328 · Internal Medicine Physician · Pottstown, PA
Clayton Chang, M.D is a Internal Medicine Physician provider in Pottstown, PA (NPI 1346204328).
Provider details
- NPI number
- 1346204328
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD024824E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
933 N Charlotte St
Suite 101
Pottstown, PA 19464-3974
Phone: (610) 323-6566
Fax: (610) 323-9267
Street-level locationGet directions
Mailing address
933 N Charlotte St
Pottstown, PA 19464-3974
Registry dates
- Enumerated
- 2006-04-14
- Last updated
- 2011-09-13
Frequently asked questions
- What is Clayton Chang's NPI number?
- Clayton Chang's National Provider Identifier (NPI) is 1346204328, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clayton Chang's specialty?
- Clayton Chang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Clayton Chang located?
- Clayton Chang's practice location on file with NPPES is 933 N Charlotte St, Pottstown, PA 19464-3974.
- What is Clayton Chang's phone number?
- The practice phone number listed in the NPPES registry for Clayton Chang is (610) 323-6566.
- Is Clayton Chang's NPI active?
- Yes — Clayton Chang's NPI (1346204328) is active in the NPPES registry as of the last update on 2011-09-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.