Thomas Azeizat, MD
NPI 1558894907 · Family Medicine Physician · Tustin, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Azeizat, MD is a Family Medicine Physician provider in Tustin, CA (NPI 1558894907).
Provider details
- NPI number
- 1558894907
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A159431 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,001 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 298 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 239 | $103 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 170 | $142 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 111 | $80 |
| Admn Sarscov2 Vacc 1 Dose90480 | 41 | $47 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 71 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 193 | 63 |
| Amlodipine Besylate | 104 | 36 |
| Losartan Potassium | 102 | 32 |
| Levothyroxine Sodium | 72 | 20 |
| Rosuvastatin Calcium | 70 | 25 |
| Omeprazole | 57 | 21 |
| Pantoprazole Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-04-04
- Last updated
- 2022-10-31
- Certified
- 2022-10-31
Frequently asked questions
- What is Thomas Azeizat's NPI number?
- Thomas Azeizat's National Provider Identifier (NPI) is 1558894907, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Azeizat's specialty?
- Thomas Azeizat is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Azeizat located?
- Thomas Azeizat's practice location on file with NPPES is 1451 Irvine Blvd, Tustin, CA 92780-3804.
- What is Thomas Azeizat's phone number?
- The practice phone number listed in the NPPES registry for Thomas Azeizat is (714) 838-8878.
- Does Thomas Azeizat accept Medicare?
- Thomas Azeizat is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Azeizat's NPI active?
- Yes — Thomas Azeizat's NPI (1558894907) is active in the NPPES registry as of the last update on 2022-10-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.