Siva Yoganathan, M.D.
NPI 1063465664 · Psychiatry Physician · Napa, CA
Enrolled with Medicare as Order and Referring Only - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siva Yoganathan, M.D. is a Psychiatry Physician provider in Napa, CA (NPI 1063465664).
Provider details
- NPI number
- 1063465664
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- License
- A26466 (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
- 2006-05-18
- Last updated
- 2007-07-08
Frequently asked questions
- What is Siva Yoganathan's NPI number?
- Siva Yoganathan's National Provider Identifier (NPI) is 1063465664, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siva Yoganathan's specialty?
- Siva Yoganathan is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Siva Yoganathan located?
- Siva Yoganathan's practice location on file with NPPES is 2100 Napa Vallejo Hwy, Napa, CA 94558-6234.
- What is Siva Yoganathan's phone number?
- The practice phone number listed in the NPPES registry for Siva Yoganathan is (707) 253-5000.
- Does Siva Yoganathan accept Medicare?
- Siva Yoganathan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Siva Yoganathan's NPI active?
- Yes — Siva Yoganathan's NPI (1063465664) 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.