Quick answers
- Does Mary R. Parker accept Medicare assignment?
- Yes. Medicare's clinician data says Mary R. Parker 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 Mary R. Parker see?
- In 2024, CMS data shows 272 Original Medicare patients and 924 services for Mary R. Parker. This counts Original Medicare only and measures volume, not quality.
- What is Mary R. Parker's NPI number?
- 1861506032. 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 Mary R. Parker, 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 | 272 |
|---|---|
| Services billed to Medicare | 924 |
| Different services or procedures | 13 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Injection of chemical agent into single incompetent vein of leg using ultrasound guidance (36465)244 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)230 services
- Destruction of first incompetent vein of arm or leg using radiofrequency and imaging guidance (36475)209 services
- Injection of chemical agent into multiple incompetent veins of same leg using ultrasound guidance (36466)83 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)79 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 cholesterol75%
- Arthritis62%
- Diabetes36%
- Ischemic heart disease31%
- Chronic kidney disease31%
Practice locations
Addresses where Mary R. Parker is enrolled with Medicare (CMS data updated October 2, 2026).
- 19016 Stone Oak Pkwy, Suite 180San Antonio, TX 78258 (866) 552‑4866
Group practices
Medicare enrollment lists Mary R. Parker as a member of this group (CMS data updated October 2, 2026).
- Interventional Partners PLLC95 clinicians in the group
Specialties
- Vascular Surgeryprimary
Other vascular surgeons in San Antonio
Clinicians with the same Medicare primary specialty in San Antonio, TX — not a recommendation.
Other clinicians in Interventional Partners PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical School At Houston |
| Graduation year | 1989 (37 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1861506032 |
| 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