Theodore Sung, M.D.
NPI 1093974644 · Emergency Medicine Physician · Downey, CA
Enrolled with Medicare as Practitioner - Preventive Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Theodore Sung, M.D. is a Emergency Medicine Physician provider in Downey, CA (NPI 1093974644).
Provider details
- NPI number
- 1093974644
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 250543 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
18 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
- 2008-06-07
- Last updated
- 2021-12-21
- Certified
- 2021-12-21
Frequently asked questions
- What is Theodore Sung's NPI number?
- Theodore Sung's National Provider Identifier (NPI) is 1093974644, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Theodore Sung's specialty?
- Theodore Sung is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Theodore Sung located?
- Theodore Sung's practice location on file with NPPES is 9333 Imperial Hwy, Downey, CA 90242-2812.
- What is Theodore Sung's phone number?
- The practice phone number listed in the NPPES registry for Theodore Sung is (800) 823-4040.
- Does Theodore Sung accept Medicare?
- Theodore Sung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Theodore Sung's NPI active?
- Yes — Theodore Sung's NPI (1093974644) is active in the NPPES registry as of the last update on 2021-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.