UK + US, 2026 prices
MRIScanCost
Radiology clinicNPI registry, August 2026

Gravlith LLC

1717 N St NW Ste 1, Washington, DC 20036

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Practice-location phone (registry)
As recorded by the organisation in NPPES, last updated 29 July 2026. Not verified by us.

Registry Record

NPI
1528980687
Type
Radiology clinic/centre
Taxonomy codes
261QR0200X (Radiology clinic/center)
Practice location
1717 N St NW Ste 1, Washington, DC 20036
Telephone
(406) 309-6462
NPI issued
29 July 2026 (0 years ago)
Record updated
29 July 2026 (0 years ago)
NPI status
NPI active as reported by CMS 2026-08
Metro area
Washington-Arlington-Alexandria, DC-VA-MD-WV (metropolitan area, District of Columbia)
State
District of Columbia (14 records statewide)
Map position
Census address match (rooftop level)
Snapshot
NPPES data dissemination file, 10 August 2026

What the Record Tells You

Gravlith LLC is an NPI registry record for a radiology clinic/centre at 1717 N St NW Ste 1 in Washington, District of Columbia 20036. CMS issued NPI 1528980687 on 29 July 2026, and the organisation last updated its own entry on 29 July 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.

Washington sits in the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area (District of Columbia), which has 14 imaging-centre records on the District of Columbia side in the August 2026 file, 0 of them with the MRI code, out of 14 across District of Columbia. The nearest alternatives in the registry are Physician Imaging of Washington Hospital Center, LLC (0.4 miles, Washington), Madison Diagnostic Group LLC (0.6 miles, Washington) and Millennium Scan International LLC (0.7 miles, Washington), with 2 more within 2.2 miles.

For a cash-pay benchmark, our District of Columbia range is $800 to $2,100 at freestanding imaging centres and $2,800 to $7,800 at hospitals for a typical single-region MRI. 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 1717 N St NW Ste 1, straight-line distance. Rows without a link are name-classified radiology organisations or records outside a metro page.

CentreCityDistanceTypePhone (registry)
Physician Imaging of Washington Hospital Center, LLCWashington, DC0.4 miRadiology clinic(301) 209-5700
Madison Diagnostic Group LLCWashington, DC0.6 miRadiology org. (name-classified)(202) 851-5470
Millennium Scan International LLCWashington, DC0.7 miRadiology org. (name-classified)(202) 775-9710
Center Radiology PCWashington, DC2.2 miRadiology org. (name-classified)(202) 877-6429
Medstar Medical Group Radiology, LLCWashington, DC2.2 miRadiology org. (name-classified)(703) 558-1403
Where it sits
Locator map showing Gravlith LLC at 1717 N St NW Ste 1, Washington, DC 20036 and the 5 nearest imaging centresPhysician Imaging of Washington Hospital Center, LLCMadison Diagnostic Group LLCMillennium Scan International LLCCenter Radiology PCGravlith LLC

Gravlith LLC in amber, with the 5 nearest registry records in teal. Boundary drawn: District of Columbia outline.

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

Cash-Price Benchmark

Typical cash price for a single-region MRI in District of Columbia

Freestanding imaging centre

$800 to $2,100

Hospital outpatient

$2,800 to $7,800

DC metro hospitals among the most expensive in the country. Ranges are our sourced estimates for the state (methodology), not quotes from any listed centre.

What to ask when you call

  1. 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.
  2. Scanner field strength (1.5T or 3T) and whether it is closed, wide-bore or open.
  3. ACR or IAC accreditation, and who reads the images. The registry cannot tell you either.
  4. Whether they accept an order from a telehealth referral if you have no local doctor.

Full list: cheap MRI, good MRI checklist.

Source: NPI registry records, status as reported by CMS, August 2026 file (NPPES data dissemination file dated 10 August 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 Gravlith LLC.

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Updated 2026-06-11