Stephen Earl Lazarus, M.D., Inc.
NPI 1851662464 · Undersea and Hyperbaric Medicine (Emergency Medicine) Physician · Placentia, CA
Stephen Earl Lazarus, M.D., Inc. is a Undersea and Hyperbaric Medicine (Emergency Medicine) Physician organization in Placentia, CA (NPI 1851662464).
Provider details
- NPI number
- 1851662464
- Entity type
- Organization
- Primary specialty
- Undersea and Hyperbaric Medicine (Emergency Medicine) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Stephen Lazarus, President(949) 361-4726
- License
- G23575 (CA)
Specialties & taxonomies
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
14 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
- 2012-01-13
- Last updated
- 2012-01-13
Frequently asked questions
- What is Stephen Earl Lazarus, M.D., Inc.'s NPI number?
- Stephen Earl Lazarus, M.D., Inc.'s National Provider Identifier (NPI) is 1851662464, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Stephen Earl Lazarus, M.D., Inc.?
- Stephen Earl Lazarus, M.D., Inc. is classified in the NPPES registry as Undersea and Hyperbaric Medicine (Emergency Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Earl Lazarus, M.D., Inc. located?
- Stephen Earl Lazarus, M.D., Inc.'s practice location on file with NPPES is 1041 E. Yorba Linda Bl. #203, Placentia, CA 92870-3728.
- What is Stephen Earl Lazarus, M.D., Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Stephen Earl Lazarus, M.D., Inc. is (714) 524-4833.
- Who is the authorized official for Stephen Earl Lazarus, M.D., Inc.?
- The authorized official listed on Stephen Earl Lazarus, M.D., Inc.'s NPPES record is Stephen Lazarus, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Stephen Earl Lazarus, M.D., Inc.'s NPI active?
- Yes — Stephen Earl Lazarus, M.D., Inc.'s NPI (1851662464) is active in the NPPES registry as of the last update on 2012-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.