Youn S. Toh, M.D.
NPI 1518990134 · Anesthesiology Physician · Fountain Valley, CA
Youn S. Toh, M.D. is a Anesthesiology Physician organization in Fountain Valley, CA (NPI 1518990134).
Provider details
- NPI number
- 1518990134
- Entity type
- Organization
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Youn Toh, President(714) 698-1270
- License
- A30670 (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
- 2006-07-08
- Last updated
- 2020-08-22
Frequently asked questions
- What is Youn S. Toh, M.D.'s NPI number?
- Youn S. Toh, M.D.'s National Provider Identifier (NPI) is 1518990134, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Youn S. Toh, M.D.?
- Youn S. Toh, M.D. is classified in the NPPES registry as Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Youn S. Toh, M.D. located?
- Youn S. Toh, M.D.'s practice location on file with NPPES is 10900 Warner Ave, Fountain Valley, CA 92708-3846.
- What is Youn S. Toh, M.D.'s phone number?
- The practice phone number listed in the NPPES registry for Youn S. Toh, M.D. is (714) 698-1270.
- Who is the authorized official for Youn S. Toh, M.D.?
- The authorized official listed on Youn S. Toh, M.D.'s NPPES record is Youn Toh, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Youn S. Toh, M.D.'s NPI active?
- Yes — Youn S. Toh, M.D.'s NPI (1518990134) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.