Quick answers
- Does Melissa Sifuentes accept Medicare assignment?
- Yes. Medicare's clinician data says Melissa Sifuentes 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 Melissa Sifuentes see?
- In 2024, CMS data shows 41 Original Medicare patients and 275 services for Melissa Sifuentes. This counts Original Medicare only and measures volume, not quality.
- What is Melissa Sifuentes's NPI number?
- 1396194569. 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 Melissa Sifuentes, 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 | 41 |
|---|---|
| Services billed to Medicare | 275 |
| Different services or procedures | 23 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)56 services
- Insertion of needle into vein for collection of blood sample (36415)48 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)48 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%
- Diabetes75%
- Chronic kidney disease73%
- Heart failure68%
- Arthritis66%
Practice locations
Addresses where Melissa Sifuentes is enrolled with Medicare (CMS data updated October 2, 2026).
- 14555 W National Ave, Suite 140New Berlin, WI 53151 (414) 649‑1280
- 2210 W 95th StChicago, IL 60643 (773) 341‑3500
Group practices
Medicare enrollment lists Melissa Sifuentes as a member of these groups (CMS data updated October 2, 2026).
- Aurora Medical Group, Inc.3,813 clinicians in the group
- Advocate Health and Hospitals Corporation3,118 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in New Berlin
Clinicians with the same Medicare primary specialty in New Berlin, WI — not a recommendation.
Other clinicians in Aurora Medical Group, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rush Medical College Of Rush University |
| Graduation year | 2016 (10 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) | 1396194569 |
| 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