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Edit this profileAt a glance
- 2125 Oak Grove Rd, #200, Walnut Creek, CA 94598
About Dr. Chafen
Less T. Chafen, M.D. is a healthcare provider in Walnut Creek, CA specializing in diagnostic radiology. Medicare claims data shows Less provided 1,421 services to 1,418 patients. The services billed most often include screening mammography, dxa bone density measurement of hip, pelvis, spine, and screening 3d breast mammography. This provider record is associated with NPI 1336131689.
Factual summary compiled by Guide.md from public records; not written by this provider.
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
- (925) 296-7150
- Email not available
Practice Locations
2125 OAK GROVE RD #200
Walnut Creek, CA 94598
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
1,421 services · 1,418 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Biopsy of breast and placement of locating device using ultrasound, first growth | Procedure | 19083 |
11 | Less often than most peers in Diagnostic Radiology |
| Screening mammography | Imaging | 77067 |
270 | As often as other peers in Diagnostic Radiology |
| Dxa bone density measurement of hip, pelvis, spine | Imaging | 77080 |
262 | More often than most peers in Diagnostic Radiology |
| Screening 3d breast mammography | Imaging | 77063 |
250 | As often as other peers in Diagnostic Radiology |
| Screening mammography | Imaging | 77067 |
217 | As often as other peers in Diagnostic Radiology |
| Screening 3d breast mammography | Imaging | 77063 |
133 | As often as other peers in Diagnostic Radiology |
| Limited ultrasound scan of 1 breast | Imaging | 76642 |
66 | As often as other peers in Diagnostic Radiology |
| Diagnostic mammography of both breasts | Imaging | 77066 |
61 | As often as other peers in Diagnostic Radiology |
| Diagnostic mammography of 1 breast | Imaging | 77065 |
58 | As often as other peers in Diagnostic Radiology |
| Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) | Billing code | G0279 |
93 | As often as other 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.
Other radiologists at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 7
Clinically related specialties at the same address — the people this provider most likely works alongside.
Other radiologists in Walnut Creek 4
Same specialty, same city.
More connections — 8 related providers in 1 group
Also performs Biopsy of breast and placement of locating device using ultrasound, first growth 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Less T. Chafen?
Less T. Chafen is a radiologist in Walnut Creek, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Diagnostic Radiology”.
NPI registry
What is Less T. Chafen's address?
Less T. Chafen is listed at 2125 Oak Grove Rd #200, Walnut Creek, CA 94598. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Less T. Chafen?
The number on file is (925) 296-7150. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Less T. Chafen?
Less T. Chafen's National Provider Identifier is 1336131689. 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
How much experience does Less T. Chafen have?
Less T. Chafen has 21+ years experience. Registered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What procedures does Less T. Chafen perform?
According to Medicare billing data, Less T. Chafen performs procedures including biopsy of breast and placement of locating device using ultrasound, first growth; reads or performs imaging such as screening mammography and dxa bone density measurement of hip, pelvis, spine. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Less T. Chafen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Less T. Chafen. If this is you, claiming it is free.
Guide.md
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