Santosh Shah, MD
NPI 1841440021 · Diagnostic Radiology Physician · Mason City, IA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Santosh Shah, MD is a Diagnostic Radiology Physician provider in Mason City, IA (NPI 1841440021).
Provider details
- NPI number
- 1841440021
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD-44162 (IA)
Specialties & taxonomies
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
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
8 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
4,990 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 536 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 524 | $37 |
| X-Ray of Chest, 2 Views71046 | 438 | $10 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 256 | $80 |
| Ct Scan of Upper Spine Without Contrast72125 | 188 | $44 |
| Mri Scan of Brain Before and After Contrast70553 | 162 | $101 |
Practice location
Mailing address
Additional practice locations (7)
- 403 1st St SeBelmond, IA 50421-1201Phone: (844) 474-4321
- 104 S Story StBoone, IA 50036-4737Phone: (844) 474-4321
- 1316 S Main StClarion, IA 50525-2019Phone: (844) 474-4321
- 401 S 17th StClear Lake, IA 50428-2304Phone: (844) 474-4321
- 2700 1st Ave SFort Dodge, IA 50501-4300Phone: (844) 474-4321
- 840 W US Highway 18Garner, IA 50438-1023Phone: (844) 474-4321
- 1924 Superior StWebster City, IA 50595-3146Phone: (844) 474-4321
Registry dates
- Enumerated
- 2008-09-24
- Last updated
- 2026-01-15
- Certified
- 2026-01-15
Frequently asked questions
- What is Santosh Shah's NPI number?
- Santosh Shah's National Provider Identifier (NPI) is 1841440021, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Santosh Shah's specialty?
- Santosh Shah is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Santosh Shah located?
- Santosh Shah's practice location on file with NPPES is 1000 4th St Sw, Mason City, IA 50401-2800.
- What is Santosh Shah's phone number?
- The practice phone number listed in the NPPES registry for Santosh Shah is (641) 428-7000.
- Does Santosh Shah accept Medicare?
- Santosh Shah is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Santosh Shah's NPI active?
- Yes — Santosh Shah's NPI (1841440021) is active in the NPPES registry as of the last update on 2026-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.