Quick answers
- Does Ruben J. Mylvaganam accept Medicare assignment?
- Yes. Medicare's clinician data says Ruben J. Mylvaganam 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 Ruben J. Mylvaganam see?
- In 2024, CMS data shows 295 Original Medicare patients and 1,252 services for Ruben J. Mylvaganam. This counts Original Medicare only and measures volume, not quality.
- What is Ruben J. Mylvaganam's NPI number?
- 1629462676. 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 Ruben J. Mylvaganam, 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 | 295 |
|---|---|
| Services billed to Medicare | 1,252 |
| Different services or procedures | 37 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)173 services
- Critical care, first 30-74 minutes (99291)168 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)148 services
- Test for exercise-induced lung stress (94618)124 services
- Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th (G0316)116 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%
- Heart failure61%
- Ischemic heart disease55%
- Arthritis49%
- COPD43%
Hospitals where Ruben J. Mylvaganam works
Medicare's Facility Affiliation Data lists Ruben J. Mylvaganam 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.
- Northwestern Lake Forest HospitalLake Forest, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140130
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140242
- Northwestern Medicine Delnor Community HospitalGeneva, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140211
- Northwestern Medicine Kishwaukee HospitalDekalb, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140286
- Northwestern Memorial HospitalChicago, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140281
Practice locations
Addresses where Ruben J. Mylvaganam is enrolled with Medicare (CMS data updated October 2, 2026).
- 12251 S 80th AvePalos Heights, IL 60463 (708) 923‑5869
- 675 N St Clair, 250 Dept EndocrinologyChicago, IL 60611 (312) 695‑7970
Group practices
Medicare enrollment lists Ruben J. Mylvaganam as a member of these groups (CMS data updated October 2, 2026).
- Northwestern Medical Faculty Foundation4,503 clinicians in the group
- Central Dupage Physician Group1,080 clinicians in the group
Specialties
- Pulmonary Diseaseprimary
- Internal Medicinealso
Other pulmonologists in Palos Heights
Clinicians with the same Medicare primary specialty in Palos Heights, IL — not a recommendation.
Other clinicians in Northwestern Medical Faculty Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York University School Of Medicine |
| Graduation year | 2015 (11 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1629462676 |
| 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