Samuel Grigoryan, NP
NPI 1881189892 · Psychiatric/Mental Health Registered Nurse · Laguna Niguel, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Samuel Grigoryan, NP is a Psychiatric/Mental Health Registered Nurse provider in Laguna Niguel, CA (NPI 1881189892).
Provider details
- NPI number
- 1881189892
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Registered NurseNursing Service Providers
- Credential
- NP
- Sex
- Male
- Sole proprietor
- Yes
- License
- 95165516 (CA)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 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
753 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 322 | $118 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 280 | $64 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 132 | $84 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 19 | $172 |
Typical Medicare-allowed amounts for these services range $64–$172 (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 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lamotrigine | 135 | 22 |
| Alprazolam | 87 | 18 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 84 | 18 |
| Escitalopram Oxalate | 70 | 15 |
| Duloxetine Hcl | 60 | — |
| Quetiapine Fumarate | 59 | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-06-22
- Last updated
- 2023-05-15
- Certified
- 2023-05-15
Frequently asked questions
- What is Samuel Grigoryan's NPI number?
- Samuel Grigoryan's National Provider Identifier (NPI) is 1881189892, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Samuel Grigoryan's specialty?
- Samuel Grigoryan is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Registered Nurse (Nursing Service Providers).
- Where is Samuel Grigoryan located?
- Samuel Grigoryan's practice location on file with NPPES is 29982 Ivy Glenn Dr Ste 203, Laguna Niguel, CA 92677-2097.
- What is Samuel Grigoryan's phone number?
- The practice phone number listed in the NPPES registry for Samuel Grigoryan is (949) 309-7903.
- Does Samuel Grigoryan accept Medicare?
- Samuel Grigoryan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Samuel Grigoryan's NPI active?
- Yes — Samuel Grigoryan's NPI (1881189892) is active in the NPPES registry as of the last update on 2023-05-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.