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About

Radiology at San Mateo County Health in San Mateo, California offers diagnostic imaging services including CT scans, ultrasound, echocardiography, mammography, MRI, and interventional radiology. The department operates Monday through Friday from 8:00 a.m. to 4:30 p.m. and requires patients to follow specific preparation instructions based on their exam type.

Clinic Type

Radiology

Address

22 West 39th Avenue, San Mateo, CA 94403

Phone

650-573-2681

Email

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Opening Hours

Monday – Friday: 8:00 a.m. – 4:30 p.m.

Services Offered

  • Diagnostic Imaging
  • Interventional Radiology
  • CT Scan
  • Ultrasound
  • Echocardiography
  • Mammography
  • MRI – Magnetic Resonance Imaging

Technology & Equipment

  • X-ray
  • CT
  • MRI
  • Ultrasound
  • Mammography
  • Echocardiography
  • Interventional Radiology

Insurance & Payment

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Languages Spoken

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FAQs

What should I do to prepare for my radiology exam?

Here’s how to prepare for your exam. If you have questions, call (650) 573-2681.

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Birdeye (SimonMed - San Mateo): 3.9 star rating (657 reviews)
  • Yelp (SIMONMED IMAGING - San Mateo): 1 review snippet with very negative sentiment (rating not shown in excerpt) (41 reviews)
  • Birdeye (Top Diagnostic Imaging Companies in San Mateo) - SimonMed Imaging - San Mateo: 3.9 star rating (618 reviews)
  • Birdeye (Top Diagnostic Imaging Companies in San Mateo) - Peninsula Diagnostic Imaging: 2.2 star rating (48 reviews)
  • Healthgrades (Dr. Denise Wise): 4.0 star rating (4 reviews)

Patients praise

  • Some staff/procedures described as patient, professional, and efficient (example: front office friendliness; technician helpfulness)
  • At least one physician review emphasizes compassion, clear explanations, and follow-up call after results

Common complaints

  • Long wait times / delayed check-in or staff capacity issues
  • Administrative/customer service problems (rude greeting; difficulty contacting; waste of patient time)
  • Billing and refund/accounting issues, including insurance billing problems and delayed refunds
  • Inconsistent or delayed results communication and privacy concerns regarding sending results to an unauthorized physician
  • Overall low ratings for some facilities (e.g., Peninsula Diagnostic Imaging 2.2/5 on Birdeye)

"“I waited nearly a half hour past my appointment time to be called in.”"

— Birdeye review excerpt for SimonMed - San Mateo

"“ABSOLUTELY HORRIBLE!!!! No way to contact to confirm hours. only be greeted by a rude lady, Poor customer service and complete waste of patient time.”"

— Yelp review excerpt for SIMONMED IMAGING - San Mateo

"“It’s been 2.5 months and to this date have not gotten back my refund of $300+.”"

— LocalityBiz review excerpt about Peninsula Diagnostic Imaging after SimonMed acquisition

Synthesized from public review platforms as of Jul 10, 2026 — sources: [1][2][3][4].

In the News

Information sourced from the clinic's website as of July 10, 2026.

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