Radiology clinicNPI registry, September 2026

Southern Illinois Imaging

Registered legal name: National Imaging of Mount Vernon LLC

4119 S Water Tower Pl # A, Mount Vernon, IL 62864

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Practice-location phone (registry)

(618) 246-9595

As recorded by the organisation in NPPES, last updated 7 July 2023. Not verified by us.

Registry Record

NPI: 1407221419
Type: Radiology clinic/centre
Taxonomy codes: 261QR0200X (Radiology clinic/center)
Practice location: 4119 S Water Tower Pl # A, Mount Vernon, IL 62864
Telephone: (618) 246-9595
NPI issued: 2 December 2015 (10 years ago)
Record updated: 7 July 2023 (3 years ago)
NPI status: NPI active as reported by CMS 2026-09
Metro area: Mount Vernon, IL (micropolitan area, Jefferson County)
State: Illinois (528 records statewide)
Map position: Census address match (rooftop level)
Snapshot: NPPES data dissemination file, 14 September 2026

What the Record Tells You

Southern Illinois Imaging, the trading name of National Imaging of Mount Vernon LLC, is an NPI registry record for a radiology clinic/centre at 4119 S Water Tower Pl # A in Mount Vernon, Illinois 62864. CMS issued NPI 1407221419 on 2 December 2015, and the organisation last updated its own entry on 7 July 2023. That was 3 years ago; the details are probably still current, but confirm the address when you book.

The record carries one imaging taxonomy code: Radiology clinic/center (261QR0200X). It registered as a radiology clinic without the MRI-specific code, so ask which modalities it operates before assuming an MRI is available.

Mount Vernon sits in the Mount Vernon, IL micropolitan area (Jefferson County), which has 8 imaging-centre records on the Illinois side in the September 2026 file, 0 of them with the MRI code, out of 528 across Illinois. The nearest alternatives in the registry are Inmed Diagnostic Services of Il, LLC (0.0 miles, Mt. Vernon), Southern Illinois Imaging (0.0 miles, Mount Vernon) and National Radiology Group at Mt Vernon LLC (0.5 miles, Mount Vernon), with 2 more within 0.6 miles.

For a cash-pay benchmark, our Illinois freestanding-centre estimate is $550 to $1,600 for a typical single-region MRI. At Illinois hospitals the cash price is measured rather than estimated: $254 to $4,532 for a brain MRI, median $1,505, from 47 of the 61 Illinois hospitals whose own price files we have read, out of 114 in the state, files dated to September 2026. This centre's own prices are not in the registry: call (618) 246-9595 with the CPT code for your scan and ask for the self-pay rate, whether the radiologist's report is included, and the scanner's field strength.

Nearest Alternatives

The 5 closest imaging records to 4119 S Water Tower Pl # A, straight-line distance. Rows without a link are name-classified radiology organisations or records outside a metro page.

Centre	City	Distance	Type	Phone (registry)
Inmed Diagnostic Services of Il, LLC	Mt. Vernon, IL	0.0 mi	Radiology org. (name-classified)	(618) 985-8007
Southern Illinois Imaging	Mount Vernon, IL	0.0 mi	Radiology clinic	(618) 246-9595
National Radiology Group at Mt Vernon LLC	Mount Vernon, IL	0.5 mi	Radiology org. (name-classified)	(314) 303-3900
Mid America Radiology Sc	Mount Vernon, IL	0.6 mi	Radiology org. (name-classified)	(618) 242-4600
Ernst Radiology Clinic, INC	Mount Vernon, IL	0.6 mi	Radiology org. (name-classified)	(618) 242-4600

Where it sits

Southern Illinois Imaging in amber, with the 5 nearest registry records in teal. Boundary drawn: Jefferson County outline.

Map data: OpenFreeMap, © OpenMapTiles, data from OpenStreetMap contributors. Boundaries: US Census Bureau cartographic boundary files.

Cash-Price Benchmark

Cash price for a brain MRI in Illinois: 47 hospitals measured

Freestanding imaging centre, estimated

$550 to $1,600

Our own estimate. No imaging operator publishes a per-state cash price.

Hospital outpatient, measured

$254 to $4,532

Median $1,505 cash against a median gross charge of $3,962, from 47 of the 61 Illinois hospitals whose own price files we have read, out of 114 in the state, files dated to September 2026.

Chicago academic medical centres (Northwestern, U of C) at the top end. The hospital figures are CPT 70551, brain MRI without contrast, taken from each hospital's own federal transparency file and attributed to the date that file carries. A further 7 hospitals publish a “cash price” that is its chargemaster restated rather than a discount, reaching $7,151; those are kept out of the band above and counted here instead. 3 more hospitals list this code at prices more than three times apart in the same file, from $121 to $551, so which row is the scan cannot be told from the file; they are excluded from the band and counted here. Hospitals whose file we could not read are named, not filled in (methodology).

What to ask when you call

The self-pay price for your exact CPT code (70551 brain, 72148 lumbar spine, 73221 or 73721 joint, without contrast), and whether the radiologist's report is included.
Scanner field strength (1.5T or 3T) and whether it is closed, wide-bore or open.
ACR or IAC accreditation, and who reads the images. The registry cannot tell you either.
Whether they accept an order from a telehealth referral if you have no local doctor.

Full list: cheap MRI, good MRI checklist.

Browse and compare

All 8 centres in Mount Vernon Illinois imaging centres Questions to ask before booking Cash-pay MRI guide Imaging centre directory

Source: NPI registry records, status as reported by CMS, September 2026 file (NPPES data dissemination file dated 14 September 2026, download.cms.gov; US federal public data, no charge). NPPES is an identifier registry, not a licence register: an NPI does not validate licensure, accreditation or that a scanner is on site. Names, addresses and phones are as self-reported to CMS and many records have not been updated for years; confirm before you travel. Coordinates: US Census Bureau geocoder, ZIP-code centroid where the address did not match (flagged). Metro areas: 2023 Census core-based statistical areas by county. Price ranges: our methodology; hospital cash prices: each hospital's federal transparency file (45 CFR 180), where parsed. No centre pays to be listed and none is endorsed. Listed here in error, or want a correction? Email questions@mriscancost.com. This page describes a registry record, not a review or recommendation of Southern Illinois Imaging.