MRI centreNPI registry, October 2026

Centrelake Imaging & Oncology

Registered legal name: Centrelake Medical Group, INC.

3115 E Guasti Rd, Ontario, CA 91761

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Practice-location phone (registry)

(909) 635-0411

As recorded by the organisation in NPPES, last updated 24 May 2021. Not verified by us.

Registry Record

NPI: 1639137938
Type: MRI centre
Taxonomy codes: 261QM1200X (Magnetic Resonance Imaging (MRI) clinic/center); 2085R0202X (Diagnostic radiology (physician specialty code carried by an organisation)); also 261QX0203X
Practice location: 3115 E Guasti Rd, Ontario, CA 91761
Telephone: (909) 635-0411
NPI issued: 3 May 2006 (20 years ago)
Record updated: 24 May 2021 (5 years ago)
NPI status: NPI active as reported by CMS 2026-10
Metro area: Riverside-San Bernardino-Ontario, CA (metropolitan area, San Bernardino County)
State: California (1,517 records statewide)
Map position: Census address match (rooftop level)
Snapshot: NPPES data dissemination file, 12 October 2026

What the Record Tells You

Centrelake Imaging & Oncology, the trading name of Centrelake Medical Group, INC., is an NPI registry record for an MRI centre at 3115 E Guasti Rd in Ontario, California 91761. CMS issued NPI 1639137938 on 3 May 2006, and the organisation last updated its own entry on 24 May 2021. That was 5 years ago, so treat the phone number and suite as unverified until you have spoken to someone there.

The record carries 2 imaging taxonomy codes: Magnetic Resonance Imaging (MRI) clinic/center (261QM1200X) and Diagnostic radiology (physician specialty code carried by an organisation) (2085R0202X). The MRI-specific code means the organisation registered itself as a magnetic resonance imaging centre, the strongest signal the registry gives that a scanner is on site. It also holds one other taxonomy code (261QX0203X).

Ontario sits in the Riverside-San Bernardino-Ontario, CA metropolitan area (San Bernardino County), which has 178 imaging-centre records on the California side in the October 2026 file, 21 of them with the MRI code, out of 1,517 across California. The nearest alternatives in the registry are Ultrasound Institute Medical Group (0.8 miles, Ontario), Rancho Open MRI (1.3 miles, Rancho Cucamonga) and Renaissance Radiology Medical Group, INC. (2.2 miles, Rancho Cucamonga), with 2 more within 2.8 miles.

For a cash-pay benchmark, our California freestanding-centre estimate is $600 to $1,800 for a typical single-region MRI. At California hospitals the cash price is measured rather than estimated: $153 to $8,216 for a brain MRI, median $2,307, from 122 of the 169 California hospitals whose own price files we have read, out of 276 in the state, files dated to September 2026. This centre's own prices are not in the registry: call (909) 635-0411 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.

What Medicare Paid This Centre (2024)

From CMS's public Medicare claims data for Centrelake Imaging & Oncology (NPI 1639137938). Each row is a scan the centre billed to Medicare for at least 11 patients in 2024.

Scan	Medicare-approved amount	Centre's billed charge	National median approved
Head CT without contrast CPT 70450 · 31 Medicare scans	$113	$606	$98 (401 centres)
Brain MRI without contrast CPT 70551 · 25 Medicare scans	$209	$1,252	$186 (633 centres)
Brain MRI without and with contrast CPT 70553 · 14 Medicare scans	$336	$2,564	$291 (588 centres)
Chest X-ray, 2 views CPT 71046 · 59 Medicare scans	$36	$171	$31 (743 centres)
Chest CT without contrast CPT 71250 · 46 Medicare scans	$140	$785	$124 (492 centres)
Cervical spine MRI without contrast CPT 72141 · 12 Medicare scans	$206	$1,251	$165 (719 centres)
Lumbar spine MRI without contrast CPT 72148 · 27 Medicare scans	$202	$1,316	$180 (810 centres)
Knee or other leg joint MRI without contrast CPT 73721 · 20 Medicare scans	$214	$1,249	$187 (733 centres)
Abdominal ultrasound, complete CPT 76700 · 19 Medicare scans	$120	$623	$109 (647 centres)
Screening mammogram, both breasts CPT 77067 · 69 Medicare scans	$134	$674	$118 (320 centres)

The Medicare-approved amount is the full amount Medicare accepts for the scan: its own payment plus the patient's share (usually the 20% coinsurance). The billed charge is the centre's own list price on those claims, which Medicare does not pay. Both are averages over the year, and the national column is the median approved amount across every centre that billed Medicare for that scan outside a hospital.

Neither figure is a self-pay quote. If you are paying cash, ask the centre for its self-pay rate for your CPT code and whether the radiologist's report is included.

Source: Centers for Medicare & Medicaid Services, Medicare Physician & Other Practitioners - by Provider and Service, 2024 data, read 15 October 2026. CMS does not publish a centre and scan with fewer than 11 Medicare patients, so a scan missing here may still be offered.

Nearest Alternatives

The 5 closest imaging records to 3115 E Guasti Rd, straight-line distance. Rows without a link are name-classified radiology organisations or records outside a metro page.

Centre	City	Distance	Type	Phone (registry)
Ultrasound Institute Medical Group	Ontario, CA	0.8 mi	Radiology clinic	(909) 483-5550
Rancho Open MRI	Rancho Cucamonga, CA	1.3 mi	Radiology clinic	(909) 476-4474
Renaissance Radiology Medical Group, INC.	Rancho Cucamonga, CA	2.2 mi	Radiology org. (name-classified)	(909) 620-8180
Grove Diagnostic Imaging	Rancho Cucamonga, CA	2.4 mi	Radiology org. (name-classified)	(909) 982-8638
Millennium Medical Imaging Center, A Medical Corporation	Rancho Cucamonga, CA	2.8 mi	Radiology org. (name-classified)	(909) 625-2000

Where it sits

Centrelake Imaging & Oncology in amber, with the 5 nearest registry records in teal. Boundary drawn: San Bernardino 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 California: 122 hospitals measured

Freestanding imaging centre, estimated

$600 to $1,800

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

Hospital outpatient, measured

$153 to $8,216

Median $2,307 cash against a median gross charge of $5,150, from 122 of the 169 California hospitals whose own price files we have read, out of 276 in the state, files dated to September 2026.

Bay Area and LA imaging centres are competitive; UCSF and Cedars hospitals 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 24 hospitals publish a “cash price” that is its chargemaster restated rather than a discount, reaching $20,680; those are kept out of the band above and counted here instead. 12 more hospitals list this code at prices more than three times apart in the same file, from $19 to $1,825, 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 178 centres in Riverside-San Bernardino-Ontario California imaging centres Questions to ask before booking Cash-pay MRI guide Imaging centre directory

Source: NPI registry records, status as reported by CMS, October 2026 file (NPPES data dissemination file dated 12 October 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 [email protected]. This page describes a registry record, not a review or recommendation of Centrelake Imaging & Oncology.