Physician Profile
Alexander R. Guimaraes, MD PHD
Unclaimed ProfileAbout Dr. Guimaraes
Alexander R. Guimaraes, MD PHD is a healthcare provider in Portland, OR specializing in diagnostic radiology. Alexander trained at Harvard Medical School, graduating in 1999. According to Medicare claims data, Alexander cared for 559 Medicare patients across 573 services. The services billed most often include ct scan of abdomen and pelvis with contrast, ct scan of chest with contrast, and limited ultrasound scan of abdomen.
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
- (503) 418-0990
- Email not available
Practice Locations
3181 SW SAM JACKSON PARK RD
Portland, OR 97239
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
573 services · 559 patients · 19 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Needle biopsy of liver through skin | Procedure | 47000 |
13 | Less often than most peers in Diagnostic Radiology |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
136 | As often as other peers in Diagnostic Radiology |
| Ct scan of chest with contrast | Imaging | 71260 |
61 | As often as other peers in Diagnostic Radiology |
| Limited ultrasound scan of abdomen | Imaging | 76705 |
50 | As often as other peers in Diagnostic Radiology |
| Complete ultrasound scan behind abdominal cavity | Imaging | 76770 |
42 | As often as other peers in Diagnostic Radiology |
| X-ray of abdomen, 1 view | Imaging | 74018 |
41 | As often as other peers in Diagnostic Radiology |
| Ultrasound scan of head and neck soft tissue | Imaging | 76536 |
38 | As often as other peers in Diagnostic Radiology |
| Ct scan of abdomen and pelvis before and after contrast | Imaging | 74178 |
30 | As often as other peers in Diagnostic Radiology |
| Complete ultrasound scan of abdomen | Imaging | 76700 |
23 | Less often than most peers in Diagnostic Radiology |
| Ultrasonic guidance for needle placement | Imaging | 76942 |
21 | 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 2
Same specialty, same street address — most likely the same department or group.
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 Portland 6
Same specialty, same city.
More connections — 19 related providers in 3 groups
Trained at Harvard Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 1999 at Harvard Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Needle biopsy of liver through skin 3
Providers in OR who bill this service to Medicare most often.
Common questions
What does Dr. Guimaraes specialize in?
Dr. Guimaraes is a radiologist in Portland, OR. That is the designation recorded for this NPI in the federal registry, where it is listed as “Diagnostic Radiology”.
NPI registry
Where is Dr. Guimaraes located?
Dr. Guimaraes is listed at 3181 Sw Sam Jackson Park Rd, Portland, OR 97239. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Guimaraes's phone number?
The number on file is (503) 418-0990. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Guimaraes's NPI number?
Dr. Guimaraes's National Provider Identifier is 1194791764. 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. Guimaraes go to medical school?
Dr. Guimaraes attended Harvard Medical School, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Guimaraes been practicing?
Dr. Guimaraes has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Guimaraes do most often?
According to Medicare billing data, Dr. Guimaraes performs procedures including needle biopsy of liver through skin; reads or performs imaging such as ct scan of abdomen and pelvis with contrast and ct scan of chest with contrast; provides treatments such as complete ultrasound of abdomen and pelvis artery and vein blood flow and use of a drug to induce depression of consciousness by physician performing a procedure , initial 15 minutes. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Guimaraes confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Guimaraes. 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.