Zarah Antongiorgi, M.D.
NPI 1073704300 · Anesthesiology Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zarah Antongiorgi, M.D. is a Anesthesiology Physician provider in Los Angeles, CA (NPI 1073704300).
Provider details
- NPI number
- 1073704300
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
120 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 40 | $231 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 39 | $87 |
| Anesthesia for Electroshock Therapy00104 | 26 | $130 |
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 15 | $90 |
Typical Medicare-allowed amounts for these services range $87–$231 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 14445 Olive View Dr Rm 6b119-HSylmar, CA 91342-1437Phone: (818) 364-3031
Registry dates
- Enumerated
- 2007-08-01
- Last updated
- 2019-07-15
Frequently asked questions
- What is Zarah Antongiorgi's NPI number?
- Zarah Antongiorgi's National Provider Identifier (NPI) is 1073704300, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zarah Antongiorgi's specialty?
- Zarah Antongiorgi is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Zarah Antongiorgi located?
- Zarah Antongiorgi's practice location on file with NPPES is 757 Westwood Plz Ste 3325, Los Angeles, CA 90095.
- What is Zarah Antongiorgi's phone number?
- The practice phone number listed in the NPPES registry for Zarah Antongiorgi is (310) 267-3899.
- Does Zarah Antongiorgi accept Medicare?
- Zarah Antongiorgi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zarah Antongiorgi's NPI active?
- Yes — Zarah Antongiorgi's NPI (1073704300) is active in the NPPES registry as of the last update on 2019-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.