Shirin Majdizadeh, M.D.
NPI 1700135126 · Internal Medicine Physician · Orange, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shirin Majdizadeh, M.D. is a Internal Medicine Physician provider in Orange, CA (NPI 1700135126).
Provider details
- NPI number
- 1700135126
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036137067 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 20 | 18 |
| Apixabanbrand: Eliquis | 15 | 14 |
| Metoprolol Succinate | 13 | 13 |
| Atorvastatin Calcium | 11 | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (2)
- 11 Technology DrIrvine, CA 92618-2302Phone: (949) 923-3200
- 611 W Park StCarle Forum, LlUrbana, IL 61801-2500Phone: (217) 383-3129Fax: (217) 326-1550
Registry dates
- Enumerated
- 2012-08-30
- Last updated
- 2025-08-01
- Certified
- 2025-08-01
Frequently asked questions
- What is Shirin Majdizadeh's NPI number?
- Shirin Majdizadeh's National Provider Identifier (NPI) is 1700135126, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shirin Majdizadeh's specialty?
- Shirin Majdizadeh is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Shirin Majdizadeh located?
- Shirin Majdizadeh's practice location on file with NPPES is 2501 E Chapman Ave Ste 207, Orange, CA 92869-3204.
- What is Shirin Majdizadeh's phone number?
- The practice phone number listed in the NPPES registry for Shirin Majdizadeh is (714) 771-8177.
- Does Shirin Majdizadeh accept Medicare?
- Shirin Majdizadeh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shirin Majdizadeh's NPI active?
- Yes — Shirin Majdizadeh's NPI (1700135126) is active in the NPPES registry as of the last update on 2025-08-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.