Luis Alvarez Nidea, MD
Gastroenterology (CMS) · South Bend, IN
At a glance
621 Memorial Dr Ste 511, South Bend, IN 46601-1075
Published activity: Colonoscopy · Upper gastrointestinal (GI) endoscopy for acid reflux. View counts and coverage
NPPES record updated Mar 7, 2025. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
621 Memorial Dr Ste 511South Bend, IN 46601-1075
Additional reported practice locations
1020 High RdBremen, IN 465061093
Phone: 5743099967
Fax: 5743099968 100 Navarre Pl Ste 4400
South Bend, IN 466011100
Phone: 5745445580
Fax: 5745445579
Education & affiliations
- Medical / professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb)
- Graduation year
- 1985
- CMS specialties
- Gastroenterology
Practice groups
Reported hospital affiliations
- Elkhart General Hospital Elkhart, IN
- Memorial Hospital Of South Bend South Bend, IN
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Colonoscopy | 84 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 59 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $496.13 |
Reporting companies
| Company | Amount |
|---|---|
| ABBVIE INC. | $75.39 |
| MADRIGAL PHARMACEUTICALS | $73.86 |
| TAKEDA PHARMACEUTICALS U.S.A., INC. | $71.87 |
| GENZYME CORPORATION | $53.14 |
| JANSSEN BIOTECH, INC. | $51.50 |
| REGENERON HEALTHCARE SOLUTIONS, INC. | $37.39 |
| ARDELYX, INC. | $34.15 |
| QOL MEDICAL, LLC | $33.03 |
| Other reporting companies | $65.80 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Gastroenterology (CMS)
- Taxonomy code
- 207RG0100X
- Enumeration date
- Oct 25, 2005
- Record updated
- Mar 7, 2025
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD
Reported taxonomies and licenses
207RG0100X · Primary
License reported: 01058943A IN
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
621 Memorial Dr Ste 511South Bend, IN 46601-1075
- Phone
- (574) 544-5580
- Fax
- (574) 544-5579
Mailing address
3245 HEALTH DR STE 100GRANGER, IN 465301380
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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