Physician Profile
William N. Gonser, M.D. practices diagnostic radiology in Fairfield, CA. William is a 1988 graduate of Saint Louis University School of Medicine. Medicare claims data shows William provided 842 services to 774 patients. The services billed most often include x-ray of chest, 1 view, imaging guidance for procedure, 60 minutes or less, and ct scan head or brain without contrast.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
1200 B GALE WILSON BLVD
Fairfield, CA 94533
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.
Abdomen & Pelvis
Bone & Joint
Brain & Head
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
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
Urinary & kidney
Women's health
X-Ray
842 services · 774 patients · 22 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| X-ray of chest, 1 view | Imaging | 71045 |
269 | As often as other peers in Diagnostic Radiology |
| Imaging guidance for procedure, 60 minutes or less | Imaging | 76000 |
66 | More often than most peers in Diagnostic Radiology |
| Ct scan head or brain without contrast | Imaging | 70450 |
65 | |
| X-ray of chest, 2 views | Imaging | 71046 |
47 | |
| X-ray of knee, 1-2 views | Imaging | 73560 |
43 | As often as other peers in Diagnostic Radiology |
| X-ray of pelvis, 1-2 views | Imaging | 72170 |
43 | As often as other peers in Diagnostic Radiology |
| Mri scan of brain without contrast | Imaging | 70551 |
34 | |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
31 | |
| X-ray of abdomen, 1 view | Imaging | 74018 |
30 | |
| X-ray of hip, 2-3 views | Imaging | 73502 |
28 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
William N. Gonser is a radiologist in Fairfield, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Diagnostic Radiology”.
NPI registry
William N. Gonser is listed at 1200 B Gale Wilson Blvd, Fairfield, CA 94533. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (707) 464-6510. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
William N. Gonser's National Provider Identifier is 1952348617. 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
William N. Gonser attended Saint Louis University School of Medicine, graduating in 1988. This comes from the CMS National Downloadable File.
CMS public data
William N. Gonser has 38 years experience. Calculated from a graduation year of 1988, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, William N. Gonser performs imaging including x-ray of chest, 1 view and imaging guidance for procedure, 60 minutes or less; provides treatments such as ultrasound study of one arm or leg veins with compression and maneuvers. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by William N. Gonser. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.