Glenn Allison, M.D.
NPI 1245386051 · Surgical Oncology Physician · Orange, CA
Glenn Allison, M.D. is a Surgical Oncology Physician provider in Orange, CA (NPI 1245386051).
Provider details
- NPI number
- 1245386051
- Entity type
- Individual
- Primary specialty
- Surgical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G25063 (CA)
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
- 2007-01-26
- Last updated
- 2025-09-11
Frequently asked questions
- What is Glenn Allison's NPI number?
- Glenn Allison's National Provider Identifier (NPI) is 1245386051, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Glenn Allison's specialty?
- Glenn Allison is listed in the NPPES registry with a primary specialty of Surgical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Glenn Allison located?
- Glenn Allison's practice location on file with NPPES is 212 E Chapman Ave, Orange, CA 92866-1506.
- What is Glenn Allison's phone number?
- The practice phone number listed in the NPPES registry for Glenn Allison is (714) 633-9761.
- Is Glenn Allison's NPI active?
- Yes — Glenn Allison's NPI (1245386051) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.