Gregory Thier, MD
NPI 1922088558 · Family Medicine Physician · Anaheim, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Thier, MD is a Family Medicine Physician provider in Anaheim, CA (NPI 1922088558).
Provider details
- NPI number
- 1922088558
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A65305 (CA)
Specialties & taxonomies
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
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
- 2006-01-19
- Last updated
- 2025-10-23
- Certified
- 2025-10-23
Frequently asked questions
- What is Gregory Thier's NPI number?
- Gregory Thier's National Provider Identifier (NPI) is 1922088558, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Thier's specialty?
- Gregory Thier is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Thier located?
- Gregory Thier's practice location on file with NPPES is 1038 S Sunstream Ln, Anaheim, CA 92808-2517.
- What is Gregory Thier's phone number?
- The practice phone number listed in the NPPES registry for Gregory Thier is (843) 540-3114.
- Does Gregory Thier accept Medicare?
- Gregory Thier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Thier's NPI active?
- Yes — Gregory Thier's NPI (1922088558) is active in the NPPES registry as of the last update on 2025-10-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.