Leo W Kwan MD a Medical Corp
NPI 1437355500 · Pain Medicine (Anesthesiology) Physician · Fullerton, CA
Leo W Kwan MD a Medical Corp is a Pain Medicine (Anesthesiology) Physician organization in Fullerton, CA (NPI 1437355500).
Provider details
- NPI number
- 1437355500
- Entity type
- Organization
- Primary specialty
- Pain Medicine (Anesthesiology) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Deborah Sigman, Manager(949) 588-2190
- License
- A23356 (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
- 2007-06-25
- Last updated
- 2007-10-17
Frequently asked questions
- What is Leo W Kwan MD a Medical Corp's NPI number?
- Leo W Kwan MD a Medical Corp's National Provider Identifier (NPI) is 1437355500, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Leo W Kwan MD a Medical Corp?
- Leo W Kwan MD a Medical Corp is classified in the NPPES registry as Pain Medicine (Anesthesiology) Physician (Allopathic & Osteopathic Physicians).
- Where is Leo W Kwan MD a Medical Corp located?
- Leo W Kwan MD a Medical Corp's practice location on file with NPPES is 101 East Valencia, Fullerton, CA 92835-2568.
- What is Leo W Kwan MD a Medical Corp's phone number?
- The practice phone number listed in the NPPES registry for Leo W Kwan MD a Medical Corp is (949) 588-2190.
- Who is the authorized official for Leo W Kwan MD a Medical Corp?
- The authorized official listed on Leo W Kwan MD a Medical Corp's NPPES record is Deborah Sigman, Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Leo W Kwan MD a Medical Corp's NPI active?
- Yes — Leo W Kwan MD a Medical Corp's NPI (1437355500) is active in the NPPES registry as of the last update on 2007-10-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.