Quick answers
- Does Jaime A. Oviedo accept Medicare assignment?
- Yes. Medicare's clinician data says Jaime A. Oviedo 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 Jaime A. Oviedo see?
- In 2024, CMS data shows 715 Original Medicare patients and 2,940 services for Jaime A. Oviedo. This counts Original Medicare only and measures volume, not quality.
- What is Jaime A. Oviedo's NPI number?
- 1164409421. 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 Jaime A. Oviedo, 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 | 715 |
|---|---|
| Services billed to Medicare | 2,940 |
| Different services or procedures | 54 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)876 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)148 services
- Special stained specimen slides to examine tissue, initial procedure (88342)126 services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)98 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)88 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 pressure70%
- Arthritis42%
- Anxiety27%
- Diabetes25%
- Ischemic heart disease24%
Hospitals where Jaime A. Oviedo works
Medicare's Facility Affiliation Data lists Jaime A. Oviedo 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.
- Brigham and Women's HospitalBoston, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220110
- Metrowest Medical CenterFramingham, MA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 220175
- Milford Regional Medical CenterMilford, MA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 220090
Practice locations
Addresses where Jaime A. Oviedo is enrolled with Medicare (CMS data updated October 2, 2026).
- 475 Franklin St, Suite 110Framingham, MA 01702 (508) 620‑9200
- 75 Francis StBoston, MA 02115 (617) 732‑5500
- 850 Boylston StChestnut Hill, MA 02467 (617) 732‑5500
Group practices
Medicare enrollment lists Jaime A. Oviedo as a member of these groups (CMS data updated October 2, 2026).
- Brigham and Womens Physicians Organization Inc2,994 clinicians in the group
- Gbgastro LLC20 clinicians in the group
- Greater Boston Gastroenterology20 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Framingham
Clinicians with the same Medicare primary specialty in Framingham, MA — not a recommendation.
Other clinicians in Brigham and Womens Physicians Organization Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Boston University School Of Medicine |
| Graduation year | 2002 (24 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1164409421 |
| 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