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Edit this profileAt a glance
- Dept la 21555, Pasadena, CA 91185
About Dr. Lopez
Based in Pasadena, CA, January K. Lopez, MD is listed in the NPI registry under diagnostic radiology. January graduated from University of California, Geffen School of Medicine in 2004. According to Medicare claims data, January cared for 3,642 Medicare patients across 3,672 services. The services billed most often include screening mammography, screening 3d breast mammography, and dxa bone density measurement of hip, pelvis, spine. NPI 1225138936 identifies this record in the national registry.
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
- (949) 236-8620
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
DEPT LA 21555
Pasadena, CA 91185
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
Breast Imaging
Abdominal imaging
Biopsies
Bone Density
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
3,672 services · 3,642 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Biopsy of breast and placement of locating device using ultrasound, first growth | Procedure | 19083 |
20 | As often as other peers in Diagnostic Radiology |
| Screening mammography | Imaging | 77067 |
782 | More often than most peers in Diagnostic Radiology |
| Screening 3d breast mammography | Imaging | 77063 |
759 | More often than most peers in Diagnostic Radiology |
| Dxa bone density measurement of hip, pelvis, spine | Imaging | 77080 |
446 | More often than most peers in Diagnostic Radiology |
| X-ray of chest, 1 view | Imaging | 71045 |
228 | As often as other peers in Diagnostic Radiology |
| Diagnostic mammography of both breasts | Imaging | 77066 |
227 | More than most peers in Diagnostic Radiology |
| Limited ultrasound scan of 1 breast | Imaging | 76642 |
127 | More often than most peers in Diagnostic Radiology |
| Complete ultrasound scan of 1 breast | Imaging | 76641 |
127 | More often than most peers in Diagnostic Radiology |
| Diagnostic mammography of 1 breast | Imaging | 77065 |
93 | More often than most peers in Diagnostic Radiology |
| Mri scan of both breasts | Imaging | 77049 |
86 | More 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 Pasadena 8
Same specialty, same city.
Trained at University of California, Geffen School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 2004 at University of California, Geffen School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of breast and placement of locating device using ultrasound, first growth 7
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Lopez specialize in?
Dr. Lopez is a radiologist in Pasadena, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Diagnostic Radiology”.
NPI registry
Where is Dr. Lopez located?
Dr. Lopez is listed at Dept la 21555, Pasadena, CA 91185. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Lopez's phone number?
The number on file is (949) 236-8620. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Lopez's NPI number?
Dr. Lopez's National Provider Identifier is 1225138936. 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
Where did Dr. Lopez go to medical school?
Dr. Lopez attended University of California, Geffen School of Medicine, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Lopez been practicing?
Dr. Lopez has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Lopez do most often?
According to Medicare billing data, Dr. Lopez performs procedures including biopsy of breast and placement of locating device using ultrasound, first growth; reads or performs imaging such as screening mammography and screening 3d breast mammography. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Lopez confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Lopez. If this is you, claiming it is free.
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