Stephan Simonian, M.D.
NPI 1104924208 · Mental Health Counselor · Glendale, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephan Simonian, M.D. is a Mental Health Counselor provider in Glendale, CA (NPI 1104924208).
Provider details
- NPI number
- 1104924208
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- C50787 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,636 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,635 | $92 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 998 | $129 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 928 | $70 |
| Psychotherapy With Evaluation and Management Visit, 45 Minutes90836 | 54 | $89 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 21 | $189 |
Typical Medicare-allowed amounts for these services range $70–$189 (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 · 68 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 792 | 103 |
| Lorazepam | 524 | 64 |
| Citalopram Hydrobromidebrand: Citalopram Hbr | 509 | 65 |
| Buspirone Hcl | 405 | 62 |
| Quetiapine Fumarate | 346 | 32 |
| Risperidone | 328 | 36 |
| Mirtazapine | 274 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,234 across 88 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-20
- Last updated
- 2025-09-11
Frequently asked questions
- What is Stephan Simonian's NPI number?
- Stephan Simonian's National Provider Identifier (NPI) is 1104924208, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephan Simonian's specialty?
- Stephan Simonian is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Stephan Simonian located?
- Stephan Simonian's practice location on file with NPPES is 1141 N Brand Blvd, Glendale, CA 91202.
- What is Stephan Simonian's phone number?
- The practice phone number listed in the NPPES registry for Stephan Simonian is (818) 551-1118.
- Does Stephan Simonian accept Medicare?
- Stephan Simonian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephan Simonian's NPI active?
- Yes — Stephan Simonian's NPI (1104924208) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.