Gwynne Holz, M.D.
NPI 1912960857 · Diagnostic Radiology Physician · Ann Arbor, MI
Gwynne Holz, M.D. is a Diagnostic Radiology Physician provider in Ann Arbor, MI (NPI 1912960857).
Provider details
- NPI number
- 1912960857
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 4301051288 (MI)
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
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 9500 Euclid AveCleveland, OH 44195-0001Phone: (800) 223-2273
Registry dates
- Enumerated
- 2006-04-11
- Last updated
- 2018-08-29
Frequently asked questions
- What is Gwynne Holz's NPI number?
- Gwynne Holz's National Provider Identifier (NPI) is 1912960857, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gwynne Holz's specialty?
- Gwynne Holz is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gwynne Holz located?
- Gwynne Holz's practice location on file with NPPES is 1500 East Medical Center Dr, Ann Arbor, MI 48109.
- What is Gwynne Holz's phone number?
- The practice phone number listed in the NPPES registry for Gwynne Holz is (734) 936-4500.
- Is Gwynne Holz's NPI active?
- Yes — Gwynne Holz's NPI (1912960857) is active in the NPPES registry as of the last update on 2018-08-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.