David Okun, M.D.
NPI 1306839287 · Hematology & Oncology Physician · Laguna Hills, CA
David Okun, M.D. is a Hematology & Oncology Physician provider in Laguna Hills, CA (NPI 1306839287).
Provider details
- NPI number
- 1306839287
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- G29859 (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
- 2005-08-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is David Okun's NPI number?
- David Okun's National Provider Identifier (NPI) is 1306839287, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Okun's specialty?
- David Okun is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is David Okun located?
- David Okun's practice location on file with NPPES is 24953 Paseo De Valencia, Laguna Hills, CA 92653-4342.
- What is David Okun's phone number?
- The practice phone number listed in the NPPES registry for David Okun is (949) 770-8168.
- Is David Okun's NPI active?
- Yes — David Okun's NPI (1306839287) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.