IndividualActive
Charles Chang, M.D.
NPI 1649380650 · Family Medicine Physician · Chillicothe, OH
Charles Chang, M.D. is a Family Medicine Physician provider in Chillicothe, OH (NPI 1649380650).
Provider details
- NPI number
- 1649380650
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 35-100239 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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
17273 State Route 104
Chillicothe, OH 45601-8608
Phone: (740) 773-1141
Street-level locationGet directions
Mailing address
677 Havenwood Dr
Wheelersburg, OH 45694-1905
Registry dates
- Enumerated
- 2006-08-30
- Last updated
- 2007-07-08
Frequently asked questions
- What is Charles Chang's NPI number?
- Charles Chang's National Provider Identifier (NPI) is 1649380650, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Chang's specialty?
- Charles Chang is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Chang located?
- Charles Chang's practice location on file with NPPES is 17273 State Route 104, Chillicothe, OH 45601-8608.
- What is Charles Chang's phone number?
- The practice phone number listed in the NPPES registry for Charles Chang is (740) 773-1141.
- Is Charles Chang's NPI active?
- Yes — Charles Chang's NPI (1649380650) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.