Quick answers
- Does Merlyn N. D Souza accept Medicare assignment?
- Yes. Medicare's clinician data says Merlyn N. D Souza 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 Merlyn N. D Souza see?
- In 2024, CMS data shows 305 Original Medicare patients and 2,977 services for Merlyn N. D Souza. This counts Original Medicare only and measures volume, not quality.
- What is Merlyn N. D Souza's NPI number?
- 1578501086. 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 Merlyn N. D Souza, 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 | 305 |
|---|---|
| Services billed to Medicare | 2,977 |
| Different services or procedures | 20 |
| Participating Medicare provider | Yes |
| Average age of these patients | 86 |
Most frequent services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)1,316 services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes (99307)1,005 services
- Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes (99348)340 services
- Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)135 services
- Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes (99347)78 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%
- Arthritis70%
- Alzheimer's disease or dementia59%
- Heart failure55%
- Depression54%
Practice locations
Addresses where Merlyn N. D Souza is enrolled with Medicare (CMS data updated October 2, 2026).
- 3445 N Central AveChicago, IL 60634 (773) 205‑0800
- 5600 W Addison St, Lowr 1llChicago, IL 60634 (773) 202‑9622
Group practices
Medicare enrollment lists Merlyn N. D Souza as a member of these groups (CMS data updated October 2, 2026).
- Metropolitan Healthcare Partners PLLC25 clinicians in the group
- Metropolitan Gericare Associates PLLC10 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Other clinicians in Metropolitan Healthcare Partners PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1990 (36 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578501086 |
| 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
- 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