Quick answers
- Does Pedro Diaz Marchan accept Medicare assignment?
- Yes. Medicare's clinician data says Pedro Diaz Marchan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Pedro Diaz Marchan see?
- In 2024, CMS data shows 178 Original Medicare patients and 282 services for Pedro Diaz Marchan. This counts Original Medicare only and measures volume, not quality.
- What is Pedro Diaz Marchan's NPI number?
- 1225070311. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Pedro Diaz Marchan, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 178 |
|---|---|
| Services billed to Medicare | 282 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 65 |
Most frequent services
- Ct scan head or brain without contrast (70450)120 services
- Ct scan of upper spine without contrast (72125)30 services
- Ct scan of face without contrast (70486)20 services
- Mri scan of brain before and after contrast (70553)13 services
- Ct scan of blood vessels of neck with contrast (70498)12 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol63%
- Diabetes42%
- Arthritis39%
- Anxiety39%
- Depression37%
Practice locations
Addresses where Pedro Diaz Marchan is enrolled with Medicare (CMS data updated October 2, 2026).
- 1504 Taub LoopHouston, TX 77030 (713) 873‑2000
Group practices
Medicare enrollment lists Pedro Diaz Marchan as a member of this group (CMS data updated October 2, 2026).
- Baylor College of Medicine809 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Other clinicians in Baylor College of Medicine
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Puerto Rico School Of Medicine |
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225070311 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians