Siamac Vahabzadeh, M.D.
NPI 1568536514 · Family Medicine Physician · Columbia, MO
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siamac Vahabzadeh, M.D. is a Family Medicine Physician provider in Columbia, MO (NPI 1568536514).
Provider details
- NPI number
- 1568536514
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2006022628 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
1,235 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 | 385 | $87 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 338 | $123 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 223 | $128 |
| Hemoglobin A1c Level83036 | 172 | $9 |
| Administration of Pneumococcal VaccineG0009 | 47 | $30 |
| Administration of Influenza Virus VaccineG0008 | 32 | $30 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 119 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 325 | 87 |
| Lisinopril | 313 | 83 |
| Omeprazole | 309 | 83 |
| Losartan Potassium | 286 | 71 |
| Amlodipine Besylate | 256 | 72 |
| Hydrochlorothiazide | 229 | 59 |
| Levothyroxine Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$64 across 3 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
- 2006-11-20
- Last updated
- 2022-12-20
- Certified
- 2022-12-20
Frequently asked questions
- What is Siamac Vahabzadeh's NPI number?
- Siamac Vahabzadeh's National Provider Identifier (NPI) is 1568536514, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siamac Vahabzadeh's specialty?
- Siamac Vahabzadeh is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Siamac Vahabzadeh located?
- Siamac Vahabzadeh's practice location on file with NPPES is 1605 E Broadway Ste 110, Columbia, MO 65201-8023.
- What is Siamac Vahabzadeh's phone number?
- The practice phone number listed in the NPPES registry for Siamac Vahabzadeh is (573) 815-8130.
- Does Siamac Vahabzadeh accept Medicare?
- Siamac Vahabzadeh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Siamac Vahabzadeh's NPI active?
- Yes — Siamac Vahabzadeh's NPI (1568536514) is active in the NPPES registry as of the last update on 2022-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.