Quick answers
- Does Jill A. Melendez Young accept Medicare assignment?
- Yes. Medicare's clinician data says Jill A. Melendez Young 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 Jill A. Melendez Young see?
- In 2024, CMS data shows 212 Original Medicare patients and 984 services for Jill A. Melendez Young. This counts Original Medicare only and measures volume, not quality.
- What is Jill A. Melendez Young's NPI number?
- 1184628158. 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 Jill A. Melendez Young, 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 | 212 |
|---|---|
| Services billed to Medicare | 984 |
| Different services or procedures | 24 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)252 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)195 services
- Dialysis services, 4 or more physician visits per month (20 years or older) (90960)162 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)102 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)85 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%
- Chronic kidney disease75%
- Arthritis48%
- Ischemic heart disease46%
- Diabetes45%
Hospitals where Jill A. Melendez Young works
Medicare's Facility Affiliation Data lists Jill A. Melendez Young 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.
- Beth Israel Deaconess Medical CenterBoston, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220086
- Cambridge Health AllianceCambridge, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220011
- Mount Auburn HospitalCambridge, MA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 220002
- Winchester HospitalWinchester, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220105
Practice locations
Addresses where Jill A. Melendez Young is enrolled with Medicare (CMS data updated October 2, 2026).
- 1493 Cambridge StCambridge, MA 02139 (617) 665‑1000
- 300 Mount Auburn StCambridge, MA 02138
- 330 Mount Auburn StCambridge, MA 02138
- 57 Bedford St, Suite 130Lexington, MA 02420 (781) 862‑7500
Group practices
Medicare enrollment lists Jill A. Melendez Young as a member of these groups (CMS data updated October 2, 2026).
- Cambridge Public Health Commission656 clinicians in the group
- Mount Auburn Professional Services Inc231 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Cambridge
Clinicians with the same Medicare primary specialty in Cambridge, MA — not a recommendation.
Other clinicians in Cambridge Public Health Commission
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Southern Illinois University School Of Medicine |
| Graduation year | 2001 (25 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) | 1184628158 |
| 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