Physician Profile
Geoffrey A. Sigmund, M.D.
Unclaimed ProfileAbout Dr. Sigmund
Geoffrey A. Sigmund, M.D. is a healthcare provider in Orange, CA specializing in nuclear medicine. Geoffrey trained at Loma Linda University School of Medicine, graduating in 2007. Geoffrey is also listed as specializing in diagnostic radiology. According to Medicare claims data, Geoffrey cared for 2,409 Medicare patients across 21,749 services. The services billed most often include injection, gadobutrol, 0.1 ml, low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml, and mri scan of lower spinal canal 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 — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
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.
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
- (714) 456-7890
- Email not available
Practice Locations
101 THE CITY DR S UCI MEDICAL CENTER, DEPARTMENT OF RADIOLOGY
Orange, CA 92868
1510 E Herndon Ave Ste 110
Fresno, CA 93720
Procedures Most Often Billed to Medicare
21,749 services · 2,409 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of contrast for imaging of shoulder joint | Procedure | 23350 |
29 | Too few peers to compare |
| Mri scan of lower spinal canal without contrast | Imaging | 72148 |
412 | More than most peers in Nuclear Medicine |
| Mri scan of leg joint without contrast | Imaging | 73721 |
333 | Too few peers to compare |
| Mri scan of arm joint without contrast | Imaging | 73221 |
245 | Too few peers to compare |
| Mri scan of upper spinal canal without contrast | Imaging | 72141 |
189 | More than most peers in Nuclear Medicine |
| Mri scan of brain before and after contrast | Imaging | 70553 |
138 | As often as other peers in Nuclear Medicine |
| Mri scan of middle spinal canal without contrast | Imaging | 72146 |
122 | More than most peers in Nuclear Medicine |
| Ct scan of leg without contrast | Imaging | 73700 |
90 | More than most peers in Nuclear Medicine |
| Mri scan of brain without contrast | Imaging | 70551 |
61 | As often as other peers in Nuclear Medicine |
| Complete ultrasound scan of abdomen | Imaging | 76700 |
57 | As often as other peers in Nuclear Medicine |
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.
Other nuclear medicines at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 31 related providers in 4 groups
Other nuclear medicines in Orange 7
Same specialty, same city.
Trained at Loma Linda University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2007 at Loma Linda University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of contrast for imaging of shoulder joint 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Geoffrey A. Sigmund's specialty?
Geoffrey A. Sigmund is a nuclear medicine in Orange, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Geoffrey A. Sigmund?
Geoffrey A. Sigmund is listed at 101 the City Dr S Uci Medical Center, Department of Radiology, Orange, CA 92868. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Geoffrey A. Sigmund?
The number on file is (714) 456-7890. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Geoffrey A. Sigmund's NPI number?
Geoffrey A. Sigmund's National Provider Identifier is 1710152988. 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 Geoffrey A. Sigmund's education?
Geoffrey A. Sigmund attended Loma Linda University School of Medicine, graduating in 2007. This comes from the CMS National Downloadable File.
CMS public data
How long has Geoffrey A. Sigmund been practicing?
Geoffrey A. Sigmund has 19 years experience. Calculated from a graduation year of 2007, reported in the CMS National Downloadable File.
CMS public data
What is Geoffrey A. Sigmund known for?
According to Medicare billing data, Geoffrey A. Sigmund performs procedures including injection of contrast for imaging of shoulder joint; reads or performs imaging such as mri scan of lower spinal canal without contrast and mri scan of leg joint without contrast; provides treatments such as ultrasound of abdomen and pelvis artery and vein blood flow. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Geoffrey A. Sigmund confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Geoffrey A. Sigmund. 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.