Gionis Emergency Medical Group, Inc
NPI 1710939749 · Emergency Medicine Physician · Norwalk, CA
Gionis Emergency Medical Group, Inc is a Emergency Medicine Physician organization in Norwalk, CA (NPI 1710939749).
Provider details
- NPI number
- 1710939749
- Entity type
- Organization
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Thomas Gionis, President(562) 864-6377
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Internal Medicine Physician207R00000X
Allopathic & Osteopathic Physicians
- Ophthalmology Physician207W00000X
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
- 2006-05-17
- Last updated
- 2008-11-19
Frequently asked questions
- What is Gionis Emergency Medical Group, Inc's NPI number?
- Gionis Emergency Medical Group, Inc's National Provider Identifier (NPI) is 1710939749, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Gionis Emergency Medical Group, Inc?
- Gionis Emergency Medical Group, Inc is classified in the NPPES registry as Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gionis Emergency Medical Group, Inc located?
- Gionis Emergency Medical Group, Inc's practice location on file with NPPES is 13100 Studebaker Rd, Norwalk, CA 90650-2531.
- What is Gionis Emergency Medical Group, Inc's phone number?
- The practice phone number listed in the NPPES registry for Gionis Emergency Medical Group, Inc is (562) 864-6377.
- Who is the authorized official for Gionis Emergency Medical Group, Inc?
- The authorized official listed on Gionis Emergency Medical Group, Inc's NPPES record is Thomas Gionis, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Gionis Emergency Medical Group, Inc's NPI active?
- Yes — Gionis Emergency Medical Group, Inc's NPI (1710939749) is active in the NPPES registry as of the last update on 2008-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.