Quick answers
- Does Sara Aguinaga accept Medicare assignment?
- Yes. Medicare's clinician data says Sara Aguinaga 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 Sara Aguinaga see?
- In 2024, CMS data shows 146 Original Medicare patients and 448 services for Sara Aguinaga. This counts Original Medicare only and measures volume, not quality.
- What is Sara Aguinaga's NPI number?
- 1669963526. 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 Sara Aguinaga, 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 | 146 |
|---|---|
| Services billed to Medicare | 448 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)82 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)80 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)49 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)48 services
- Insertion of needle into vein for collection of blood sample (36415)32 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 pressure70%
- High cholesterol68%
- Arthritis31%
- Diabetes26%
- Anxiety26%
- Ischemic heart disease24%
Hospitals where Sara Aguinaga works
Medicare's Facility Affiliation Data lists Sara Aguinaga 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.
- Beaumont Hospital - DearbornDearborn, MI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 230020
- Beaumont Hospital - Farmington HillsFarmington Hills, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230151
- Beaumont Hospital Royal OakRoyal Oak, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230130
- Beaumont Hospital, TroyTroy, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230269
Practice locations
Addresses where Sara Aguinaga is enrolled with Medicare (CMS data updated October 2, 2026).
- 201 3rd St, Suite 200Belleville, MI 48111 (734) 697‑9065
- 29355 Northwestern Hwy, Corewell Health Internal MedicineSouthfield, MI 48034 (248) 356‑7726
- 29355 Northwestern Hwy 210, Corewell Health Internal MedicineSouthfield, MI 48034 (248) 356‑7726
- 3535 W 13 Mile RdRoyal Oak, MI 48073 (248) 551‑3000
Group practices
Medicare enrollment lists Sara Aguinaga as a member of this group (CMS data updated October 2, 2026).
- Oakwood Ambulatory LLC274 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Belleville
Clinicians with the same Medicare primary specialty in Belleville, MI — not a recommendation.
Other clinicians in Oakwood Ambulatory LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Central Michigan College Of Medicine |
| Graduation year | 2018 (8 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) | 1669963526 |
| 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