Quick answers
- Does Maria B. Abuawad Oropeza accept Medicare assignment?
- Yes. Medicare's clinician data says Maria B. Abuawad Oropeza 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 Maria B. Abuawad Oropeza see?
- In 2024, CMS data shows 429 Original Medicare patients and 1,643 services for Maria B. Abuawad Oropeza. This counts Original Medicare only and measures volume, not quality.
- What is Maria B. Abuawad Oropeza's NPI number?
- 1346849569. 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 Maria B. Abuawad Oropeza, 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 | 429 |
|---|---|
| Services billed to Medicare | 1,643 |
| Different services or procedures | 33 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Destruction of precancer skin growth, 2-14 growths (17003)442 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)343 services
- Destruction of precancer skin growth, 1 growth (17000)194 services
- Destruction of skin growth, 1-14 growths (17110)146 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)126 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 cholesterol74%
- High blood pressure52%
- Arthritis50%
- Osteoporosis25%
- Ischemic heart disease18%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)18%
Practice locations
Addresses where Maria B. Abuawad Oropeza is enrolled with Medicare (CMS data updated October 2, 2026).
- 2 Wisconsin Cir, Suite 1000Bethesda, MD 20815 (301) 652‑4828
- 8100 Boone Blvd, Suite 300Vienna, VA 22182 (301) 652‑4828
Group practices
Medicare enrollment lists Maria B. Abuawad Oropeza as a member of this group (CMS data updated October 2, 2026).
- Pantea Tamjidi MD PC9 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Bethesda
Clinicians with the same Medicare primary specialty in Bethesda, MD — not a recommendation.
Other clinicians in Pantea Tamjidi MD PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346849569 |
| 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