Gregg Olsen, M.D.
NPI 1427078070 · Hematology & Oncology Physician · Burbank, CA
Gregg Olsen, M.D. is a Hematology & Oncology Physician provider in Burbank, CA (NPI 1427078070).
Provider details
- NPI number
- 1427078070
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G57470 (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
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
- 2006-07-19
- Last updated
- 2012-04-11
Frequently asked questions
- What is Gregg Olsen's NPI number?
- Gregg Olsen's National Provider Identifier (NPI) is 1427078070, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregg Olsen's specialty?
- Gregg Olsen is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregg Olsen located?
- Gregg Olsen's practice location on file with NPPES is 181 S Buena Vista St, Burbank, CA 91505-4504.
- What is Gregg Olsen's phone number?
- The practice phone number listed in the NPPES registry for Gregg Olsen is (818) 840-0921.
- Is Gregg Olsen's NPI active?
- Yes — Gregg Olsen's NPI (1427078070) is active in the NPPES registry as of the last update on 2012-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.