Ioana Marcu
NPI 1316393473 · Obstetrics & Gynecology Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ioana Marcu is a Obstetrics & Gynecology Physician provider in Saint Louis, MO (NPI 1316393473).
Provider details
- NPI number
- 1316393473
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 2025043275 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
10 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 35 | 31 |
| Oxycodone Hcl | 26 | 26 |
| Estradiol | 24 | 13 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 22 | 18 |
| Cephalexin | 21 | 13 |
| Ciprofloxacin Hcl | 19 | 19 |
| Ibuprofen | 16 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$130 across 2 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
- 2016-05-09
- Last updated
- 2026-03-11
- Certified
- 2026-03-11
Frequently asked questions
- What is Ioana Marcu's NPI number?
- Ioana Marcu's National Provider Identifier (NPI) is 1316393473, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ioana Marcu's specialty?
- Ioana Marcu is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Ioana Marcu located?
- Ioana Marcu's practice location on file with NPPES is 621 S New Ballas Rd Ste 499a, Saint Louis, MO 63141-8260.
- What is Ioana Marcu's phone number?
- The practice phone number listed in the NPPES registry for Ioana Marcu is (314) 251-7650.
- Does Ioana Marcu accept Medicare?
- Ioana Marcu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ioana Marcu's NPI active?
- Yes — Ioana Marcu's NPI (1316393473) is active in the NPPES registry as of the last update on 2026-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.