Shamseldeen Mahmoud, M.D
NPI 1023438835 · Neuroradiology Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shamseldeen Mahmoud, M.D is a Neuroradiology Physician provider in Saint Louis, MO (NPI 1023438835).
Provider details
- NPI number
- 1023438835
- Entity type
- Individual
- Primary specialty
- Neuroradiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- Yes
- License
- 125.071554 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
2,661 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) |
|---|---|---|
| Ct Scan Head Or Brain Without Contrast70450 | 724 | $38 |
| Ct Scan of Upper Spine Without Contrast72125 | 298 | $45 |
| Mri Scan of Brain Before and After Contrast70553 | 266 | $105 |
| Ct Scan of Lower Spine Without Contrast72131 | 214 | $45 |
| Ct Scan of Middle Spine Without Contrast72128 | 206 | $45 |
| Ct Scan of Blood Vessels of Neck With Contrast70498 | 146 | $77 |
| Mri Scan of Brain Without Contrast |
Practice location
Mailing address
Additional practice locations (2)
- 3600 Minnesota Dr Ste 800Edina, MN 55435-7915Phone: (952) 595-1301Fax: (612) 294-4903
- 395 W 12th AveColumbus, OH 43210-1267Phone: (614) 293-8315Fax: (614) 293-6935
Registry dates
- Enumerated
- 2014-04-18
- Last updated
- 2025-11-20
- Certified
- 2025-11-20
Frequently asked questions
- What is Shamseldeen Mahmoud's NPI number?
- Shamseldeen Mahmoud's National Provider Identifier (NPI) is 1023438835, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shamseldeen Mahmoud's specialty?
- Shamseldeen Mahmoud is listed in the NPPES registry with a primary specialty of Neuroradiology Physician (Allopathic & Osteopathic Physicians).
- Where is Shamseldeen Mahmoud located?
- Shamseldeen Mahmoud's practice location on file with NPPES is 1201 S Grand Blvd, Saint Louis, MO 63104-1016.
- What is Shamseldeen Mahmoud's phone number?
- The practice phone number listed in the NPPES registry for Shamseldeen Mahmoud is (314) 257-8000.
- Does Shamseldeen Mahmoud accept Medicare?
- Shamseldeen Mahmoud is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shamseldeen Mahmoud's NPI active?
- Yes — Shamseldeen Mahmoud's NPI (1023438835) is active in the NPPES registry as of the last update on 2025-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.