Radiology clinicNPI registry, October 2026

Simonmed Imaging

Registered legal name: Health Diagnostics of California A Professional Corporation

105 South Dr Ste 110, Mountain View, CA 94040

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Practice-location phone (registry)

(650) 259-3165

As recorded by the organisation in NPPES, last updated 22 September 2026. Not verified by us.

Registry Record

NPI: 1104321959
Type: Radiology clinic/centre
Taxonomy codes: 2085R0202X (Diagnostic radiology (physician specialty code carried by an organisation)); 261QR0200X (Radiology clinic/center)
Practice location: 105 South Dr Ste 110, Mountain View, CA 94040
Telephone: (650) 259-3165
NPI issued: 26 March 2018 (8 years ago)
Record updated: 22 September 2026 (0 years ago)
NPI status: NPI active as reported by CMS 2026-10
Metro area: San Jose-Sunnyvale-Santa Clara, CA (metropolitan area, Santa Clara County)
State: California (1,517 records statewide)
Sibling NPIs: Health Diagnostics of California - Mt. View (1215361951, (650) 254-1355)
Map position: Census address match (rooftop level)
Snapshot: NPPES data dissemination file, 12 October 2026

What the Record Tells You

Simonmed Imaging, the trading name of Health Diagnostics of California A Professional Corporation, is an NPI registry record for a radiology clinic/centre at 105 South Dr Ste 110 in Mountain View, California 94040. CMS issued NPI 1104321959 on 26 March 2018, and the organisation last updated its own entry on 22 September 2026. That is recent, so the contact details are likely current.

The record carries 2 imaging taxonomy codes: Diagnostic radiology (physician specialty code carried by an organisation) (2085R0202X) and 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. The same business holds a sibling registration at this address under the name Health Diagnostics of California - Mt. View (NPI 1215361951); they are covered by this page rather than given their own.

Mountain View sits in the San Jose-Sunnyvale-Santa Clara, CA metropolitan area (Santa Clara County), which has 51 imaging-centre records on the California side in the October 2026 file, 3 of them with the MRI code, out of 1,517 across California. The nearest alternatives in the registry are El Camino Radiologists Medical Group (0.1 miles, Mountain View), Silicon Valley Diagnostic Imaging, INC. (0.1 miles, Mountain View) and California Radiology Specialists INC (0.1 miles, Mountain View), with 1 more within 1.0 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 (650) 259-3165 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 4 closest imaging records to 105 South Dr Ste 110, straight-line distance. Rows without a link are name-classified radiology organisations or records outside a metro page.

Centre	City	Distance	Type	Phone (registry)
El Camino Radiologists Medical Group	Mountain View, CA	0.1 mi	Radiology org. (name-classified)	(650) 940-7044
Silicon Valley Diagnostic Imaging, INC.	Mountain View, CA	0.1 mi	Radiology clinic	(650) 940-7000
California Radiology Specialists INC	Mountain View, CA	0.1 mi	Radiology org. (name-classified)	(469) 401-2386
Reveal Diagnostics, LLC	Mountain View, CA	1.0 mi	Radiology clinic	(415) 837-5990

Where it sits

Simonmed Imaging in amber, with the 4 nearest registry records in teal. Boundary drawn: Santa Clara 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 51 centres in San Jose-Sunnyvale-Santa Clara 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 Simonmed Imaging.