Matthew Ryan Knouse, MD
NPI 1477045284ActiveIndividual· Radiology, Diagnostic Radiology· San Juan, PR
Radiology, Diagnostic Radiology (MD) with Smi Imaging LLC and 21 other groups, practicing in San Juan, Puerto Rico. Medicare paid $236,503 for services to 3,037 patients in 2024. Isono Health, Inc. reported $2,079 in payments in 2025, mostly travel and lodging. Lists Carolina Pines Regional Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1477045284 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 6, 2018 |
| Last updated in NPPES | Jul 28, 2026 |
| Certified by provider | Jul 28, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Diagnostic Radiology Primary | 2085R0202X | MD479088 | PA |
| Radiology, Diagnostic Radiology | 2085R0202X | TPME5446 | FL |
| Radiology, Diagnostic Radiology | 2085R0202X | T8248 | TX |
| Surgery | 208600000X | MT215706 | PA |
| Radiology, Diagnostic Radiology | 2085R0202X | MTL-2026-010 | GU |
| Radiology, Diagnostic Radiology | 2085R0202X | M-2527 | GU |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Diagnostic Radiology (FL); Practitioner - Diagnostic Radiology (GA); Practitioner - Diagnostic Radiology (GU); Practitioner - Diagnostic Radiology (IL); Practitioner - Diagnostic Radiology (LA); Practitioner - Diagnostic Radiology (MD); Practitioner - Diagnostic Radiology (NC); Practitioner - Diagnostic Radiology (NJ); Practitioner - Diagnostic Radiology (NM); Practitioner - Diagnostic Radiology (NY); Practitioner - Diagnostic Radiology (OH); Practitioner - Diagnostic Radiology (PA); Practitioner - Diagnostic Radiology (PR); Practitioner - Diagnostic Radiology (SC); Practitioner - Diagnostic Radiology (SD); Practitioner - Diagnostic Radiology (TN); Practitioner - Diagnostic Radiology (TX); Practitioner - Diagnostic Radiology (VT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 3,037 |
|---|---|
| Services billed | 26,706 across 164 procedure codes |
| Paid by Medicare | $236,503 |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Diagnostic Radiology |
Medical groups
- Smi Imaging LLCBeverly Hills, CA · 384 clinicians
- Simonmed Imaging Florida LLCTeaneck, NJ · 317 clinicians
- Union Hospital of Cecil CountyElkton, MD · 288 clinicians
- Guam Healthcare Development IncorporatedDededo, GU · 207 clinicians
- Knd Development 59 LLCFort Lauderdale, FL · 177 clinicians
- Christiana Care Pennsylvania IncGlen Mills, PA · 177 clinicians
- The West Clinic P.C.Southaven, MS · 118 clinicians
- Radiology Associates of South Carolina LLCNorth Ridgeville, OH · 110 clinicians
- Hartsville Medical Group LLCHartsville, SC · 80 clinicians
- Florida Radiology Associates LLCPalm Beach Gardens, FL · 79 clinicians
- Coastal Imaging LLCManahawkin, NJ · 68 clinicians
- Three Crosses Regional Hospital LLCLas Cruces, NM · 60 clinicians
- Gifford Medical Center IncRandolph, VT · 56 clinicians
- Huron Regional Medical Center IncHuron, SD · 46 clinicians
- Pennsylvania Radiology Associates PCMooresville, NC · 46 clinicians
- Wythe County Physician Practices LLCCantonment, FL · 45 clinicians
- Roosevelt County Special Hospital DistrictPortales, NM · 40 clinicians
- Advanced Radiology SolutionsSomers Point, NJ · 36 clinicians
- Rfc Radiology Associates LLCCantonment, FL · 36 clinicians
- Radiology Associates of North Carolina PCBow, NH · 36 clinicians
- Guadalupe CountySanta Rosa, NM · 18 clinicians
- Cal Devon Urgent Care IncMorton Grove, IL · 3 clinicians
Hospital affiliations
- Carolina Pines Regional Medical CenterHartsville, SC
- Gifford Medical CenterRandolph, VT
- Roosevelt General HospitalPortales, NM
- Three Crosses Regional Hospital LLCLas Cruces, NM
- Wythe County Community HospitalWytheville, VA
Industry payments (Open Payments)
- 2025$2,079 · 4 payments from 1 company
- 2024$97.23 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Isono Health, Inc. | $2,079 | 4 |
What the 2025 payments were for
- Travel and Lodging$2,052 · 3 payments
- Food and Beverage$27.51 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Radiology, Diagnostic Radiology providers in Puerto Rico →