Armin Nassiri, M.D.
NPI 1841451143 · Child & Adolescent Psychiatry Physician · Mountain View, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Armin Nassiri, M.D. is a Child & Adolescent Psychiatry Physician provider in Mountain View, CA (NPI 1841451143).
Provider details
- NPI number
- 1841451143
- Entity type
- Individual
- Primary specialty
- Child & Adolescent Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4301092293 (MI)
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 tenure28% of score
18 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
185 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) |
|---|---|---|
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 88 | $82 |
| Psychotherapy, 1 Hour90837 | 60 | $173 |
| Psychiatric Diagnostic Evaluation90791 | 37 | $197 |
Typical Medicare-allowed amounts for these services range $82–$197 (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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Trazodone Hcl | 47 |
| Quetiapine Fumarate | 27 |
| Mirtazapine | 23 |
| Aripiprazole | 22 |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 21 |
| Clonazepam | 20 |
| Lithium Carbonatebrand: Lithium Carbonate Er | 17 |
| Sertraline Hcl | 15 |
| Lamotrigine |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-19
- Last updated
- 2017-03-09
Frequently asked questions
- What is Armin Nassiri's NPI number?
- Armin Nassiri's National Provider Identifier (NPI) is 1841451143, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Armin Nassiri's specialty?
- Armin Nassiri is listed in the NPPES registry with a primary specialty of Child & Adolescent Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Armin Nassiri located?
- Armin Nassiri's practice location on file with NPPES is 701 E El Camino Real, Mountain View, CA 94040-2833.
- What is Armin Nassiri's phone number?
- The practice phone number listed in the NPPES registry for Armin Nassiri is (650) 934-7450.
- Does Armin Nassiri accept Medicare?
- Armin Nassiri is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Armin Nassiri's NPI active?
- Yes — Armin Nassiri's NPI (1841451143) is active in the NPPES registry as of the last update on 2017-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.