Grace Su, MD
NPI 1366527970 · Gastroenterology Physician · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grace Su, MD is a Gastroenterology Physician provider in Ann Arbor, MI (NPI 1366527970).
Provider details
- NPI number
- 1366527970
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301066826 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
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
- 2006-10-25
- Last updated
- 2019-05-23
Frequently asked questions
- What is Grace Su's NPI number?
- Grace Su's National Provider Identifier (NPI) is 1366527970, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Su's specialty?
- Grace Su is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Grace Su located?
- Grace Su's practice location on file with NPPES is 1500 E Medical Center Dr, Ann Arbor, MI 48109-5000.
- What is Grace Su's phone number?
- The practice phone number listed in the NPPES registry for Grace Su is (734) 936-4000.
- Does Grace Su accept Medicare?
- Grace Su is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grace Su's NPI active?
- Yes — Grace Su's NPI (1366527970) is active in the NPPES registry as of the last update on 2019-05-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.