Gregory Louie, MD
NPI 1033307640 · Diagnostic Radiology Physician · Palo Alto, CA
Gregory Louie, MD is a Diagnostic Radiology Physician provider in Palo Alto, CA (NPI 1033307640).
Provider details
- NPI number
- 1033307640
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A90956 (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
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
- 2007-10-09
- Last updated
- 2007-10-09
Frequently asked questions
- What is Gregory Louie's NPI number?
- Gregory Louie's National Provider Identifier (NPI) is 1033307640, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Louie's specialty?
- Gregory Louie is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Louie located?
- Gregory Louie's practice location on file with NPPES is 300 Pasteur Dr # H1307, Palo Alto, CA 94305-2200.
- What is Gregory Louie's phone number?
- The practice phone number listed in the NPPES registry for Gregory Louie is (650) 723-6661.
- Is Gregory Louie's NPI active?
- Yes — Gregory Louie's NPI (1033307640) is active in the NPPES registry as of the last update on 2007-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.