Are you Clay H. Napper, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileWhere to find Clay H. Napper, M.D.
- San Mateo location main office
100 S San Mateo Dr, San Mateo, CA 94401 - South San Francisco location
935 El Camino Real, South San Francisco, CA 94080 - Burlingame location
1720 El Camino Real Ste 118, Burlingame, CA 94010 - Burlingame location
1501 Trousdale Dr, Burlingame, CA 94010 - San Mateo location
222 W 39th Ave, San Mateo, CA 94403
About Dr. Napper
Clay H. Napper, M.D. practices diagnostic radiology in San Mateo, CA. Clay is a 1992 graduate of Wake Forest University School of Medicine. Medicare claims data shows Clay provided 2,174 services to 2,088 patients. The services billed most often include x-ray of chest, 1 view, ct scan head or brain without contrast, and x-ray of chest, 2 views. The provider's National Provider Identifier (NPI) is 1053352815.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (650) 696-4515
- Email not available
Practice Locations
100 S SAN MATEO DR
San Mateo, CA 94401
935 El Camino Real
South San Francisco, CA 94080
1720 El Camino Real Ste 118
Burlingame, CA 94010
1501 Trousdale Dr
Burlingame, CA 94010
222 W 39th Ave
San Mateo, CA 94403
Conditions Evaluated or Diagnosed
Within Diagnostic Radiology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Abdomen & Pelvis
- Abdominal Pain
- Appendicitis
- Diverticulitis
- Enlarged prostate
- Gallstones
- Kidney stones
- Liver Lesions
- Ovarian cysts
Bone & Joint
- Ankle Sprain or Fracture
- Bone fractures
- Heel pain
- Hip osteoarthritis
- Osteoporosis
- Rotator cuff tear
- Torn meniscus
Brain & Head
- Brain aneurysm
- Brain tumor
- Concussion in Children
- Migraines
- Sinus infection
- Transient ischemic attack
Brain & nerves
Breast
Chest & Heart
General
Heart & blood vessels
Joint & bone
Liver & digestion
Lungs & breathing
Men's health
Neck & Thyroid
Nerve pain
Pelvic health
Spine
Spine & back
Vascular
Women's health
Procedures & services
Abdominal imaging
Biopsies
Bone Density
Breast Imaging
CT Scan
Digestive & liver
Fluoroscopy
General imaging
Heart & blood vessels
Joint & bone
MRI
Nuclear Medicine
Pelvic imaging
Screening & Prevention
Spine & back
Ultrasound
- Abdominal Ultrasound
- Carotid Ultrasound
- Leg Vein Ultrasound
- Pelvic ultrasound
- Scrotal Ultrasound
- Thyroid ultrasound
- Ultrasound
Urinary & kidney
Women's health
X-Ray
Procedures Most Often Billed to Medicare
2,174 services · 2,088 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| X-ray of chest, 1 view | Imaging | 71045 |
473 | More often than most peers in Diagnostic Radiology |
| Ct scan head or brain without contrast | Imaging | 70450 |
202 | As often as other peers in Diagnostic Radiology |
| X-ray of chest, 2 views | Imaging | 71046 |
191 | More often than most peers in Diagnostic Radiology |
| Dxa bone density measurement of hip, pelvis, spine | Imaging | 77080 |
179 | As often as other peers in Diagnostic Radiology |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
110 | As often as other peers in Diagnostic Radiology |
| Nuclear medicine study from skull base to mid-thigh with ct scan | Imaging | 78815 |
96 | As often as other peers in Diagnostic Radiology |
| Limited ultrasound scan of abdomen | Imaging | 76705 |
88 | More often than most peers in Diagnostic Radiology |
| Complete ultrasound scan behind abdominal cavity | Imaging | 76770 |
73 | More often than most peers in Diagnostic Radiology |
| Screening mammography | Imaging | 77067 |
62 | Less often than most peers in Diagnostic Radiology |
| Screening 3d breast mammography | Imaging | 77063 |
62 | Less often than most peers in Diagnostic Radiology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other radiologists in San Mateo 8
Same specialty, same city.
Trained at Wake Forest University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1992 at Wake Forest University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs X-ray of chest, 1 view 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Clay H. Napper's specialty?
Clay H. Napper is a radiologist in San Mateo, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Diagnostic Radiology”.
NPI registry
Where can I find Clay H. Napper?
Clay H. Napper is listed at 100 S San Mateo Dr, San Mateo, CA 94401. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Clay H. Napper?
The number on file is (650) 696-4515. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Clay H. Napper?
Clay H. Napper's National Provider Identifier is 1053352815. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Clay H. Napper's education?
Clay H. Napper attended Wake Forest University School of Medicine, graduating in 1992. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Clay H. Napper have?
Clay H. Napper has 34 years experience. Calculated from a graduation year of 1992, reported in the CMS National Downloadable File.
CMS public data
What is Clay H. Napper known for?
According to Medicare billing data, Clay H. Napper performs imaging including x-ray of chest, 1 view and ct scan head or brain without contrast. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Clay H. Napper's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Clay H. Napper. If this is you, claiming it is free.
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