Siva V. Natarajan, M.D., Inc. a Medical Corporation
NPI 1376924928 · Anesthesiology Physician · Newport Beach, CA
Siva V. Natarajan, M.D., Inc. a Medical Corporation is a Anesthesiology Physician organization in Newport Beach, CA (NPI 1376924928).
Provider details
- NPI number
- 1376924928
- Entity type
- Organization
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Siva Natarajan, President(562) 407-2080
- License
- A107471 (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
11 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
- 2015-06-09
- Last updated
- 2019-07-25
Frequently asked questions
- What is Siva V. Natarajan, M.D., Inc. a Medical Corporation's NPI number?
- Siva V. Natarajan, M.D., Inc. a Medical Corporation's National Provider Identifier (NPI) is 1376924928, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Siva V. Natarajan, M.D., Inc. a Medical Corporation?
- Siva V. Natarajan, M.D., Inc. a Medical Corporation is classified in the NPPES registry as Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Siva V. Natarajan, M.D., Inc. a Medical Corporation located?
- Siva V. Natarajan, M.D., Inc. a Medical Corporation's practice location on file with NPPES is 20360 Sw Birch St Ste 110, Newport Beach, CA 92660-1532.
- What is Siva V. Natarajan, M.D., Inc. a Medical Corporation's phone number?
- The practice phone number listed in the NPPES registry for Siva V. Natarajan, M.D., Inc. a Medical Corporation is (909) 833-1432.
- Who is the authorized official for Siva V. Natarajan, M.D., Inc. a Medical Corporation?
- The authorized official listed on Siva V. Natarajan, M.D., Inc. a Medical Corporation's NPPES record is Siva Natarajan, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Siva V. Natarajan, M.D., Inc. a Medical Corporation's NPI active?
- Yes — Siva V. Natarajan, M.D., Inc. a Medical Corporation's NPI (1376924928) is active in the NPPES registry as of the last update on 2019-07-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.