Zainab Mabizari, MD
NPI 1114554540 · Internal Medicine Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zainab Mabizari, MD is a Internal Medicine Physician provider in Stanford, CA (NPI 1114554540).
Provider details
- NPI number
- 1114554540
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A198853 (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
6 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
14 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 14 | $119 |
Typical Medicare-allowed amounts for these services range $119–$119 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 40 | 12 |
| Levothyroxine Sodium | 30 | — |
| Losartan Potassium | 30 | — |
| Metformin Hcl | 28 | — |
| Amlodipine Besylate | 27 | — |
| Diclofenac Sodium | 22 | — |
| Fluticasone Propionate | 22 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-03-25
- Last updated
- 2025-01-09
- Certified
- 2025-01-09
Frequently asked questions
- What is Zainab Mabizari's NPI number?
- Zainab Mabizari's National Provider Identifier (NPI) is 1114554540, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zainab Mabizari's specialty?
- Zainab Mabizari is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Zainab Mabizari located?
- Zainab Mabizari's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Zainab Mabizari's phone number?
- The practice phone number listed in the NPPES registry for Zainab Mabizari is (650) 723-4000.
- Does Zainab Mabizari accept Medicare?
- Zainab Mabizari is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zainab Mabizari's NPI active?
- Yes — Zainab Mabizari's NPI (1114554540) is active in the NPPES registry as of the last update on 2025-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.