Siamak Mehdizadehseraj, M.D.
NPI 1720460942 · Internal Medicine Physician · French Camp, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siamak Mehdizadehseraj, M.D. is a Internal Medicine Physician provider in French Camp, CA (NPI 1720460942).
Provider details
- NPI number
- 1720460942
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,033 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 1,354 | $89 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 786 | $129 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 315 | $89 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 211 | $128 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 198 | $82 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 100 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 352 | 70 |
| Amlodipine Besylate | 263 | 57 |
| Apixabanbrand: Eliquis | 256 | 35 |
| Tamsulosin Hcl | 187 | 37 |
| Losartan Potassium | 170 | 51 |
| Furosemide | 165 | 34 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-06-24
- Last updated
- 2018-09-05
Frequently asked questions
- What is Siamak Mehdizadehseraj's NPI number?
- Siamak Mehdizadehseraj's National Provider Identifier (NPI) is 1720460942, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siamak Mehdizadehseraj's specialty?
- Siamak Mehdizadehseraj is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Siamak Mehdizadehseraj located?
- Siamak Mehdizadehseraj's practice location on file with NPPES is 500 W Hospital Rd, French Camp, CA 95231.
- What is Siamak Mehdizadehseraj's phone number?
- The practice phone number listed in the NPPES registry for Siamak Mehdizadehseraj is (209) 468-6000.
- Does Siamak Mehdizadehseraj accept Medicare?
- Siamak Mehdizadehseraj is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Siamak Mehdizadehseraj's NPI active?
- Yes — Siamak Mehdizadehseraj's NPI (1720460942) is active in the NPPES registry as of the last update on 2018-09-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.