Sivaranjani Ayyanar, MD
NPI 1922620301 · Psychiatry Physician · Santa Clara, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sivaranjani Ayyanar, MD is a Psychiatry Physician provider in Santa Clara, CA (NPI 1922620301).
Provider details
- NPI number
- 1922620301
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 199510 (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
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 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 · 14 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Benztropine Mesylate | 51 |
| Lamotrigine | 42 |
| Risperidone | 36 |
| Clozapine | 26 |
| Olanzapine | 25 |
| Divalproex Sodiumbrand: Divalproex Sodium Er | 23 |
| Trazodone Hcl | 19 |
| Aripiprazole | 16 |
| Paliperidone Palmitatebrand: Invega Sustenna | 16 |
| Mirtazapine | 14 |
Practice location
Mailing address
Additional practice locations (1)
- 1721 Technology DrSan Jose, CA 95110-1305Phone: (408) 436-3300
Registry dates
- Enumerated
- 2020-05-08
- Last updated
- 2025-03-06
- Certified
- 2025-03-06
Frequently asked questions
- What is Sivaranjani Ayyanar's NPI number?
- Sivaranjani Ayyanar's National Provider Identifier (NPI) is 1922620301, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sivaranjani Ayyanar's specialty?
- Sivaranjani Ayyanar is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Sivaranjani Ayyanar located?
- Sivaranjani Ayyanar's practice location on file with NPPES is 710 Lawrence Expy, Santa Clara, CA 95051-5173.
- What is Sivaranjani Ayyanar's phone number?
- The practice phone number listed in the NPPES registry for Sivaranjani Ayyanar is (408) 851-1000.
- Does Sivaranjani Ayyanar accept Medicare?
- Sivaranjani Ayyanar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sivaranjani Ayyanar's NPI active?
- Yes — Sivaranjani Ayyanar's NPI (1922620301) is active in the NPPES registry as of the last update on 2025-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.