Radiology clinicNPI registry, September 2026

Gravphyr LLC

1500 N Grant St # 1441, Denver, CO 80203

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Practice-location phone (registry)

(406) 309-6462

As recorded by the organisation in NPPES, last updated 14 August 2026. Not verified by us.

Registry Record

NPI: 1295640365
Type: Radiology clinic/centre
Taxonomy codes: 261QR0200X (Radiology clinic/center)
Practice location: 1500 N Grant St # 1441, Denver, CO 80203
Telephone: (406) 309-6462
NPI issued: 14 August 2026 (0 years ago)
Record updated: 14 August 2026 (0 years ago)
NPI status: NPI active as reported by CMS 2026-09
Metro area: Denver-Aurora-Centennial, CO (metropolitan area, Denver County)
State: Colorado (223 records statewide)
Map position: Census address match (rooftop level)
Snapshot: NPPES data dissemination file, 14 September 2026

What the Record Tells You

Gravphyr LLC is an NPI registry record for a radiology clinic/centre at 1500 N Grant St # 1441 in Denver, Colorado 80203. CMS issued NPI 1295640365 on 14 August 2026, and the organisation last updated its own entry on 14 August 2026. That is recent, so the contact details are likely current.

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.

Denver sits in the Denver-Aurora-Centennial, CO metropolitan area (Denver County), which has 101 imaging-centre records on the Colorado side in the September 2026 file, 10 of them with the MRI code, out of 223 across Colorado. The nearest alternatives in the registry are White Diamonds LLC (0.0 miles, Denver), Quibblewick LLC (0.0 miles, Denver) and Warblefoot LLC (0.0 miles, Denver), with 2 more within 0.7 miles.

For a cash-pay benchmark, our Colorado freestanding-centre estimate is $550 to $1,500 for a typical single-region MRI. At Colorado hospitals the cash price is measured rather than estimated: $438 to $2,927 for a brain MRI, median $2,710, from 15 of the 22 Colorado hospitals whose own price files we have read, out of 51 in the state, files dated to September 2026. This centre's own prices are not in the registry: call (406) 309-6462 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 1500 N Grant St # 1441, straight-line distance. Rows without a link are name-classified radiology organisations or records outside a metro page.

Centre	City	Distance	Type	Phone (registry)
White Diamonds LLC	Denver, CO	0.0 mi	Radiology clinic	(303) 747-5176
Quibblewick LLC	Denver, CO	0.0 mi	Radiology clinic	(303) 747-6045
Warblefoot LLC	Denver, CO	0.0 mi	Radiology clinic	(303) 747-6053
Trivoxa LLC	Denver, CO	0.0 mi	Radiology clinic	(406) 309-6462
Denver Integrated Imaging	Denver, CO	0.7 mi	MRI centre	(720) 932-0930

Where it sits

Gravphyr LLC in amber, with the 5 nearest registry records in teal. Boundary drawn: Denver 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 Colorado: 15 hospitals measured

Freestanding imaging centre, estimated

$550 to $1,500

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

Hospital outpatient, measured

$438 to $2,927

Median $2,710 cash against a median gross charge of $3,427, from 15 of the 22 Colorado hospitals whose own price files we have read, out of 51 in the state, files dated to September 2026.

Denver-Boulder competitive; mountain towns priced higher. 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 6 hospitals publish a “cash price” that is its chargemaster restated rather than a discount, reaching $3,454; those are kept out of the band above and counted here instead. 1 more hospital lists this code at prices more than three times apart in the same file, from $1,250 to $1,250, 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 101 centres in Denver-Aurora-Centennial Colorado 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 [email protected]. This page describes a registry record, not a review or recommendation of Gravphyr LLC.