Siamak Rouzroch, MD
NPI 1730271685 · Internal Medicine Physician · Long Beach, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siamak Rouzroch, MD is a Internal Medicine Physician provider in Long Beach, CA (NPI 1730271685).
Provider details
- NPI number
- 1730271685
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A72525 (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
19 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
513 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 478 | $98 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 19 | $113 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 16 | $62 |
Typical Medicare-allowed amounts for these services range $62–$113 (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 · 92 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 332 | 100 |
| Lisinopril | 328 | 108 |
| Atorvastatin Calcium | 245 | 76 |
| Simvastatin | 243 | 72 |
| Metformin Hcl | 233 | 75 |
| Levothyroxine Sodium | 180 | 52 |
| Losartan Potassium | 159 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-29
- Last updated
- 2007-10-09
Frequently asked questions
- What is Siamak Rouzroch's NPI number?
- Siamak Rouzroch's National Provider Identifier (NPI) is 1730271685, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siamak Rouzroch's specialty?
- Siamak Rouzroch is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Siamak Rouzroch located?
- Siamak Rouzroch's practice location on file with NPPES is 1703 Termino Ave, Long Beach, CA 90804.
- What is Siamak Rouzroch's phone number?
- The practice phone number listed in the NPPES registry for Siamak Rouzroch is (562) 494-8008.
- Does Siamak Rouzroch accept Medicare?
- Siamak Rouzroch is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Siamak Rouzroch's NPI active?
- Yes — Siamak Rouzroch's NPI (1730271685) is active in the NPPES registry as of the last update on 2007-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.