Siamak Marzbani, M.D.
NPI 1528169307 · Obstetrics & Gynecology Physician · Smithfield, NC
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siamak Marzbani, M.D. is a Obstetrics & Gynecology Physician provider in Smithfield, NC (NPI 1528169307).
Provider details
- NPI number
- 1528169307
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 38172 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
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
283 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 | 83 | $83 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 56 | $120 |
| Urinalysis, Manual Test81002 | 42 | $3 |
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 37 | $36 |
| Screening Papanicolaou Smear; Obtaining, Preparing and Conveyance of Cervical Or Vaginal Smear to LaboratoryQ0091 | 23 | $41 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 50 | 24 |
| Oxybutynin Chloride | 29 | — |
| Medroxyprogesterone Acetate | 21 | — |
| Clobetasol Propionate | 19 | 12 |
| Levothyroxine Sodium | 18 | — |
| Oxybutynin Chloridebrand: Oxybutynin Chloride Er | 18 | — |
| Norethindrone Acetate | 16 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,694 across 48 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
- 2006-09-26
- Last updated
- 2021-04-05
- Certified
- 2021-04-05
Frequently asked questions
- What is Siamak Marzbani's NPI number?
- Siamak Marzbani's National Provider Identifier (NPI) is 1528169307, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siamak Marzbani's specialty?
- Siamak Marzbani is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Siamak Marzbani located?
- Siamak Marzbani's practice location on file with NPPES is 520 North St, Smithfield, NC 27577-4016.
- What is Siamak Marzbani's phone number?
- The practice phone number listed in the NPPES registry for Siamak Marzbani is (919) 934-3015.
- Does Siamak Marzbani accept Medicare?
- Siamak Marzbani is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Siamak Marzbani's NPI active?
- Yes — Siamak Marzbani's NPI (1528169307) is active in the NPPES registry as of the last update on 2021-04-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.