Arshia Shirzadi, D.O.
NPI 1689786550 · Psychiatry Physician · Santa Ana, CA
Enrolled with Medicare as Practitioner - Osteopathic Manipulative Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arshia Shirzadi, D.O. is a Psychiatry Physician provider in Santa Ana, CA (NPI 1689786550).
Provider details
- NPI number
- 1689786550
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 20A9293 (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 · 4 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Perphenazine | 13 |
| Aripiprazole Lauroxilbrand: Aristada | 13 |
| Mirtazapine | 11 |
| Hydroxyzine Pamoate | 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
Registry dates
- Enumerated
- 2006-08-31
- Last updated
- 2021-06-23
- Certified
- 2021-06-23
Frequently asked questions
- What is Arshia Shirzadi's NPI number?
- Arshia Shirzadi's National Provider Identifier (NPI) is 1689786550, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arshia Shirzadi's specialty?
- Arshia Shirzadi is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Arshia Shirzadi located?
- Arshia Shirzadi's practice location on file with NPPES is 401 W Civic Center Dr Ste 800, Santa Ana, CA 92701-4515.
- What is Arshia Shirzadi's phone number?
- The practice phone number listed in the NPPES registry for Arshia Shirzadi is (714) 480-6767.
- Does Arshia Shirzadi accept Medicare?
- Arshia Shirzadi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arshia Shirzadi's NPI active?
- Yes — Arshia Shirzadi's NPI (1689786550) is active in the NPPES registry as of the last update on 2021-06-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.