Paul A. Chang, MD, Inc.
NPI 1952466476 · Internal Medicine Physician · Ontario, OH
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Paul A. Chang, MD, Inc. is a Internal Medicine Physician organization in Ontario, OH (NPI 1952466476).
Provider details
- NPI number
- 1952466476
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Paul Chang, Owner(419) 529-4100
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Pediatrics Physician208000000X
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
Mailing address
Registry dates
- Enumerated
- 2006-12-26
- Last updated
- 2018-12-19
Frequently asked questions
- What is Paul A. Chang, MD, Inc.'s NPI number?
- Paul A. Chang, MD, Inc.'s National Provider Identifier (NPI) is 1952466476, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Paul A. Chang, MD, Inc.?
- Paul A. Chang, MD, Inc. is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Paul A. Chang, MD, Inc. located?
- Paul A. Chang, MD, Inc.'s practice location on file with NPPES is 2558 W 4th St, Ontario, OH 44906-1209.
- What is Paul A. Chang, MD, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Paul A. Chang, MD, Inc. is (419) 529-4100.
- Does Paul A. Chang, MD, Inc. accept Medicare?
- Paul A. Chang, MD, Inc. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Paul A. Chang, MD, Inc.?
- The authorized official listed on Paul A. Chang, MD, Inc.'s NPPES record is Paul Chang, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Paul A. Chang, MD, Inc.'s NPI active?
- Yes — Paul A. Chang, MD, Inc.'s NPI (1952466476) is active in the NPPES registry as of the last update on 2018-12-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.