Physician Profile
Pedro J. Diaz-Marchan, M.D.
Unclaimed ProfileAbout Dr. Diaz-Marchan
Based in Pasadena, TX, Pedro J. Diaz-Marchan, M.D. is listed in the NPI registry under diagnostic radiology. Pedro graduated from University of Puerto Rico School of Medicine in 1985. Medicare claims data shows Pedro provided 195 services to 183 patients. The services billed most often include ct scan head or brain without contrast, ct scan of upper spine without contrast, and ct scan of face without contrast. NPI 1225070311 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
- (713) 481-3533
- Email not available
Practice Locations
4600 E SAM HOUSTON PKWY S
Pasadena, TX 77505
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
195 services · 183 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ct scan head or brain without contrast | Imaging | 70450 |
107 | As often as other peers in Diagnostic Radiology |
| Ct scan of upper spine without contrast | Imaging | 72125 |
30 | Less often than most peers in Diagnostic Radiology |
| Ct scan of face without contrast | Imaging | 70486 |
20 | Less often than most peers in Diagnostic Radiology |
| Mri scan of brain before and after contrast | Imaging | 70553 |
13 | Less often than most peers in Diagnostic Radiology |
| Ct scan head or brain without contrast | Imaging | 70450 |
13 | As often as other peers in Diagnostic Radiology |
| Ct scan of blood vessels of neck with contrast | Imaging | 70498 |
12 | Less often 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.
Other radiologists at this location 6
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 Pasadena 3
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Puerto Rico School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1985 at University of Puerto Rico School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Ct scan head or brain without contrast 8
Providers in TX who bill this service to Medicare most often.
Common questions
What does Pedro J. Diaz-Marchan specialize in?
Pedro J. Diaz-Marchan is a radiologist in Pasadena, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Diagnostic Radiology”.
NPI registry
Where is Pedro J. Diaz-Marchan located?
Pedro J. Diaz-Marchan is listed at 4600 E Sam Houston Pkwy S, Pasadena, TX 77505. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Pedro J. Diaz-Marchan's phone number?
The number on file is (713) 481-3533. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Pedro J. Diaz-Marchan?
Pedro J. Diaz-Marchan's National Provider Identifier is 1225070311. 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 Pedro J. Diaz-Marchan train?
Pedro J. Diaz-Marchan attended University of Puerto Rico School of Medicine, graduating in 1985. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Pedro J. Diaz-Marchan have?
Pedro J. Diaz-Marchan has 41 years experience. Calculated from a graduation year of 1985, reported in the CMS National Downloadable File.
CMS public data
What does Pedro J. Diaz-Marchan do most often?
According to Medicare billing data, Pedro J. Diaz-Marchan performs imaging including ct scan head or brain without contrast and ct scan of upper spine without contrast. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Pedro J. Diaz-Marchan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Pedro J. Diaz-Marchan. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.