Sameer Hassamal, MD
NPI 1538459011 · Psychiatry Physician · La Verne, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sameer Hassamal, MD is a Psychiatry Physician provider in La Verne, CA (NPI 1538459011).
Provider details
- NPI number
- 1538459011
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A133740 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
199 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 | 74 | $135 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 60 | $186 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 39 | $73 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 26 | $189 |
Typical Medicare-allowed amounts for these services range $73–$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 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Quetiapine Fumarate | 96 | 12 |
| Bupropion Hclbrand: Bupropion Xl | 91 | 18 |
| Divalproex Sodium | 44 | — |
| Clozapine | 40 | — |
| Escitalopram Oxalate | 38 | — |
| Trazodone Hcl | 36 | — |
| Aripiprazole | 35 |
Practice location
Mailing address
Additional practice locations (2)
- 1500 E. Duarte RoadDuarte, CA 91010Phone: (626) 256-4673
- 1500 E. Duarte RoadDuarte, CA 91010Phone: (626) 256-4673
Registry dates
- Enumerated
- 2011-04-18
- Last updated
- 2019-04-19
Frequently asked questions
- What is Sameer Hassamal's NPI number?
- Sameer Hassamal's National Provider Identifier (NPI) is 1538459011, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sameer Hassamal's specialty?
- Sameer Hassamal is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Sameer Hassamal located?
- Sameer Hassamal's practice location on file with NPPES is 4201 Hartshorn Ranch Pl, La Verne, CA 91750.
- What is Sameer Hassamal's phone number?
- The practice phone number listed in the NPPES registry for Sameer Hassamal is (626) 399-1005.
- Does Sameer Hassamal accept Medicare?
- Sameer Hassamal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sameer Hassamal's NPI active?
- Yes — Sameer Hassamal's NPI (1538459011) is active in the NPPES registry as of the last update on 2019-04-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.