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Physician

CLAY NAPPER, M.D.

Radiology

SAN MATEO, CA, 94401
NPI: 1053352815

Hospital Affiliations

Search procedure prices at these hospitals onlyAll code types (Imaging & Radiology & related)

Common Procedures for Radiology

CT ScanMRIX-Ray InterpretationUltrasoundMammographyFluoroscopyPET ScanInterventional Radiology ProcedureImage-Guided BiopsyAngiography

Based on specialty. Actual services may vary — contact the provider's office to confirm.

Procedure Pricing (Medicare Data)

Based on CMS Medicare Provider Utilization data for 2023. These represent what this physician charged Medicare, not necessarily what you would pay. Compare with other physicians

ProcedureAvg ChargeMedicare AllowedMedicare PaidServices
74178
Ct scan of abdomen and pelvis before and after contrast
$520$107$8226
74177
Ct scan of abdomen and pelvis with contrast
$463$97$74124
74176
Ct scan of abdomen and pelvis without contrast
$434$93$7358
74174
Ct scan of blood vessels of abdomen and pelvis with contrast
$295$116$9314
71275
Ct scan of blood vessels of chest with contrast
$274$96$7449
70496
Ct scan of blood vessels of head with contrast
$272$93$7350
70498
Ct scan of blood vessels of neck with contrast
$272$89$7050
71260
Ct scan of chest with contrast
$266$61$4657
70551
Mri scan of brain without contrast
$253$77$6213
78815
Nuclear medicine study from skull base to mid-thigh with ct scan
$253$127$9890
71250
Ct scan of chest without contrast
$252$57$4476
72125
Ct scan of upper spine without contrast
$249$53$3940
76770
Complete ultrasound scan behind abdominal cavity
$214$40$3216
70450
Ct scan head or brain without contrast
$185$45$34256
71271
Low dose ct scan of chest for lung cancer screening
$149$58$5819
76830
Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina
$147$37$2734
76856
Complete ultrasound scan of pelvis
$133$37$2737
76700
Complete ultrasound scan of abdomen
$123$43$3129
77067
Screening mammography
$119$41$4126
76536
Ultrasound scan of head and neck soft tissue
$113$30$2253
76870
Ultrasound scan of scrotum
$113$34$2512
76705
Limited ultrasound scan of abdomen
$112$31$23108
72100
X-ray of lower and sacral spine, 2-3 views
$56$12$821
71046
X-ray of chest, 2 views
$55$12$833
73502
X-ray of hip, 2-3 views
$55$12$816
73562
X-ray of knee, 3 views
$54$11$820
73030
X-ray of shoulder, minimum of 2 views
$53$10$511
77080
Dxa bone density measurement of hip, pelvis, spine
$49$11$11151
73110
X-ray of wrist, minimum of 3 views
$49$10$711
73560
X-ray of knee, 1-2 views
$44$9$716
77081
Dxa bone density measurement of forearm, finger, hand, or foot
$38$11$1137
71045
X-ray of chest, 1 view
$26$10$8353
74018
X-ray of abdomen, 1 view
$26$10$818

Compare prices for procedures performed by Radiology physicians

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Physician identity data from the NPPES NPI Registry. Last synced 3/28/2026.