Tammy Chang, M.D.
NPI 1801094966 · Family Medicine Physician · Ypsilanti, MI
Tammy Chang, M.D. is a Family Medicine Physician provider in Ypsilanti, MI (NPI 1801094966).
Provider details
- NPI number
- 1801094966
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD60170872 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
- 2007-07-10
- Last updated
- 2013-10-14
Frequently asked questions
- What is Tammy Chang's NPI number?
- Tammy Chang's National Provider Identifier (NPI) is 1801094966, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Chang's specialty?
- Tammy Chang is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tammy Chang located?
- Tammy Chang's practice location on file with NPPES is 200 Arnet St, Ypsilanti, MI 48198-5753.
- What is Tammy Chang's phone number?
- The practice phone number listed in the NPPES registry for Tammy Chang is (734) 482-6221.
- Is Tammy Chang's NPI active?
- Yes — Tammy Chang's NPI (1801094966) is active in the NPPES registry as of the last update on 2013-10-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.