Physician Profile
John B. Holden, MD
Unclaimed ProfileAbout Dr. Holden
Based in Pasadena, CA, John B. Holden, MD is listed in the NPI registry under diagnostic ultrasound. John graduated from University of Minnesota Medical School in 1983. John is also listed as specializing in radiology, neuroradiology, and diagnostic radiology. According to Medicare claims data, John cared for 3,209 Medicare patients across 8,612 services. The services billed most often include low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml, injection, gadobutrol, 0.1 ml, and screening mammography.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
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
- (626) 397-2139
- Email not available
Practice Locations
100 W CALIFORNIA BLVD
Pasadena, CA 91105
Procedures Most Often Billed to Medicare
8,612 services · 3,209 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Screening mammography | Imaging | 77067 |
469 | More often than most peers in Diagnostic Ultrasound |
| Screening 3d breast mammography | Imaging | 77063 |
469 | More often than most peers in Diagnostic Ultrasound |
| Ct scan head or brain without contrast | Imaging | 70450 |
398 | More often than most peers in Diagnostic Ultrasound |
| Dxa bone density measurement of hip, pelvis, spine | Imaging | 77080 |
273 | More often than most peers in Diagnostic Ultrasound |
| X-ray of chest, 1 view | Imaging | 71045 |
187 | As often as other peers in Diagnostic Ultrasound |
| Mri scan of brain without contrast | Imaging | 70551 |
111 | Too few peers to compare |
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
105 | Too few peers to compare |
| Screening mammography | Imaging | 77067 |
95 | More often than most peers in Diagnostic Ultrasound |
| Screening 3d breast mammography | Imaging | 77063 |
95 | More often than most peers in Diagnostic Ultrasound |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
88 | As often as other peers in Diagnostic Ultrasound |
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.
Class of 1983 at University of Minnesota Medical School 8
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Screening mammography 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Holden's specialty?
Dr. Holden is a diagnostic ultrasound in Pasadena, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Holden?
Dr. Holden is listed at 100 W California Blvd, Pasadena, CA 91105. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Holden?
The number on file is (626) 397-2139. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Holden's NPI number?
Dr. Holden's National Provider Identifier is 1033125414. 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 Dr. Holden's medical education?
Dr. Holden attended University of Minnesota Medical School, graduating in 1983. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Holden been practicing?
Dr. Holden has 43 years experience. Calculated from a graduation year of 1983, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Holden known for?
According to Medicare billing data, Dr. Holden performs imaging including screening mammography and screening 3d breast mammography; provides treatments such as ultrasound study of one arm or leg veins with compression and maneuvers and ultrasound of both sides of head and neck blood flow. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Holden confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Holden. 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.