Christos Kalatzis, MD
NPI 1154319754 · Anesthesiology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christos Kalatzis, MD is a Anesthesiology Physician provider in Orange, CA (NPI 1154319754).
Provider details
- NPI number
- 1154319754
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A40074 (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
- 2005-10-10
- Last updated
- 2009-06-26
Frequently asked questions
- What is Christos Kalatzis's NPI number?
- Christos Kalatzis's National Provider Identifier (NPI) is 1154319754, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christos Kalatzis's specialty?
- Christos Kalatzis is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Christos Kalatzis located?
- Christos Kalatzis's practice location on file with NPPES is 2601 E Chapman Ave, Orange, CA 92869-3206.
- What is Christos Kalatzis's phone number?
- The practice phone number listed in the NPPES registry for Christos Kalatzis is (714) 633-0011.
- Does Christos Kalatzis accept Medicare?
- Christos Kalatzis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christos Kalatzis's NPI active?
- Yes — Christos Kalatzis's NPI (1154319754) is active in the NPPES registry as of the last update on 2009-06-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.