Ian Marshall, M. D.
NPI 1255384053 · Urology Physician · Charleston, SC
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ian Marshall, M. D. is a Urology Physician provider in Charleston, SC (NPI 1255384053).
Provider details
- NPI number
- 1255384053
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M. D.
- Sex
- Male
- Sole proprietor
- No
- License
- 14936 (SC)
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
20 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
4,675 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) |
|---|---|---|
| Manual Urinalysis Test With Examination Using Microscope, Automated81001 | 1,147 | $3 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 836 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 562 | $119 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 551 | $85 |
| Ultrasound Measurement of Bladder Capacity After Voiding51798 | 348 | $10 |
| Insertion of Needle Into Vein for Collection of Blood Sample |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 640 | 195 |
| Mirabegronbrand: Myrbetriq | 395 | 106 |
| Finasteride | 291 | 81 |
| Solifenacin Succinate | 135 | 41 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 126 | 105 |
| Relugolixbrand: Orgovyx | 113 | 17 |
| Vibegronbrand: Gemtesa | 102 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$10,781 across 115 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
- 2006-05-19
- Last updated
- 2013-03-14
Frequently asked questions
- What is Ian Marshall's NPI number?
- Ian Marshall's National Provider Identifier (NPI) is 1255384053, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ian Marshall's specialty?
- Ian Marshall is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Ian Marshall located?
- Ian Marshall's practice location on file with NPPES is 641 Saint Andrews Blvd, Charleston, SC 29407-7165.
- What is Ian Marshall's phone number?
- The practice phone number listed in the NPPES registry for Ian Marshall is (843) 766-9747.
- Does Ian Marshall accept Medicare?
- Ian Marshall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ian Marshall's NPI active?
- Yes — Ian Marshall's NPI (1255384053) is active in the NPPES registry as of the last update on 2013-03-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.