Quick answers
- Does Ariel N. Gaines accept Medicare assignment?
- Yes. Medicare's clinician data says Ariel N. Gaines 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 Ariel N. Gaines see?
- In 2024, CMS data shows 29 Original Medicare patients and 75 services for Ariel N. Gaines. This counts Original Medicare only and measures volume, not quality.
- What is Ariel N. Gaines's NPI number?
- 1538722830. 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 Ariel N. Gaines, 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 | 29 |
|---|---|
| Services billed to Medicare | 75 |
| Different services or procedures | 7 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Critical care, first 30-74 minutes (99291)43 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%
- Ischemic heart disease62%
- Chronic kidney disease55%
- Atrial fibrillation45%
- Diabetes41%
Practice locations
Addresses where Ariel N. Gaines is enrolled with Medicare (CMS data updated October 2, 2026).
- 22 S Green StBaltimore, MD 21201 (410) 328‑6704
Group practices
Medicare enrollment lists Ariel N. Gaines as a member of this group (CMS data updated October 2, 2026).
- Shock Trauma Associates PA261 clinicians in the group
Specialties
Find other Critical Care (Intensivists) doctors in Maryland →
Other critical care doctors in Baltimore
Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.
Other clinicians in Shock Trauma Associates PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Chicago, Pritzker School Of Medicine |
| Graduation year | 2019 (7 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538722830 |
| 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