Tengis Riznis, MD
NPI 1821155326 · Family Medicine Physician · Irvine, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tengis Riznis, MD is a Family Medicine Physician provider in Irvine, CA (NPI 1821155326).
Provider details
- NPI number
- 1821155326
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A86212 (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
19 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methylprednisolone | 30 | 30 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 22 | 22 |
| Pantoprazole Sodium | 22 | 22 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 20 | 20 |
| Levofloxacin | 19 | 15 |
| Metoprolol Tartrate | 18 | 17 |
| Doxycycline Hyclate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-03
- Last updated
- 2025-11-25
- Certified
- 2025-11-25
Frequently asked questions
- What is Tengis Riznis's NPI number?
- Tengis Riznis's National Provider Identifier (NPI) is 1821155326, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tengis Riznis's specialty?
- Tengis Riznis is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tengis Riznis located?
- Tengis Riznis's practice location on file with NPPES is 11 Technology Dr, Irvine, CA 92618-2302.
- What is Tengis Riznis's phone number?
- The practice phone number listed in the NPPES registry for Tengis Riznis is (949) 923-3200.
- Does Tengis Riznis accept Medicare?
- Tengis Riznis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tengis Riznis's NPI active?
- Yes — Tengis Riznis's NPI (1821155326) is active in the NPPES registry as of the last update on 2025-11-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.