Quick answers
- Does Tatiana Ramirez Dominguez accept Medicare assignment?
- Yes. Medicare's clinician data says Tatiana Ramirez Dominguez 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 Tatiana Ramirez Dominguez see?
- In 2024, CMS data shows 101 Original Medicare patients and 250 services for Tatiana Ramirez Dominguez. This counts Original Medicare only and measures volume, not quality.
- What is Tatiana Ramirez Dominguez's NPI number?
- 1043443377. 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 Tatiana Ramirez Dominguez, 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 | 101 |
|---|---|
| Services billed to Medicare | 250 |
| Different services or procedures | 51 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Diagnostic exam of anus using an endoscope (46600)47 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)44 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)17 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)15 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)14 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 cholesterol75%
- High blood pressure66%
- Arthritis50%
- Anxiety33%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)31%
- Depression30%
Hospitals where Tatiana Ramirez Dominguez works
Medicare's Facility Affiliation Data lists Tatiana Ramirez Dominguez at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Mercy Hospital JeffersonCrystal City, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260023
- Mercy Hospital SouthSaint Louis, MO · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 260077
- Mercy Hospital St LouisSaint Louis, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260020
- Mercy Hospital WashingtonWashington, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260052
Practice locations
Addresses where Tatiana Ramirez Dominguez is enrolled with Medicare (CMS data updated October 2, 2026).
- 10012 Kennerly Rd, Suite 102Saint Louis, MO 63128 (314) 543‑5240
- 621 S New Ballas Rd, Suite 7011bSaint Louis, MO 63141 (314) 251‑6840
Group practices
Medicare enrollment lists Tatiana Ramirez Dominguez as a member of these groups (CMS data updated October 2, 2026).
- Mercy Clinic Surgical Specialists LLC182 clinicians in the group
- Mercy Clinic Gastroenterology LLC67 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Other clinicians in Mercy Clinic Surgical Specialists LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2008 (18 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1043443377 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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