CARLOS ORVAL WEISS MD
NPI 1609880616
Internal Medicine - Geriatric Medicine in Byron Center, MI
About Carlos Orval Weiss Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CARLOS ORVAL WEISS MD (NPI 1609880616) is an individual geriatric medicine provider in Byron Center, Michigan, licensed in Michigan (4301074215) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Carlos Orval Weiss Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Carlos Weiss reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Byron Center, MI 49315
- Reassigned Medicare billing, Michigan enrollment
- 737 clinicians in this Medicare group
Grand Rapids, MI 49548
- Reassigned Medicare billing, Michigan enrollment
- 2,446 clinicians in this Medicare group
Grand Rapids, MI 49503
- Reassigned Medicare billing, Michigan enrollment
- 42 clinicians in this Medicare group
Greenville, MI 48838
- Reassigned Medicare billing, Michigan enrollment
- 242 clinicians in this Medicare group
Reed City, MI 49677
- Reassigned Medicare billing, Michigan enrollment
- 132 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49315 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BYRON CENTER, MI 49315
BYRON CENTER, MI 49315
BYRON CENTER, MI 49315
BYRON CENTER, MI 49315
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Carlos Weiss's NPI number?
The NPI number for Carlos Weiss is 1609880616. It was assigned to this individual provider in the NPPES registry on July 27, 2006.
Where is Carlos Weiss located?
Carlos Weiss practices at 7751 Byron Center Ave SW Ste C, Byron Center, MI 49315. The listed phone number is (616) 267-7668.
What is Carlos Weiss's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.
Is Carlos Weiss enrolled in Medicare?
Yes. Carlos Weiss is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Carlos Weiss's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Carlos Weiss reassigns Medicare benefits to 5 organizations: Advantage Health Saint Mary's Medical Group (Byron Center, MI), Spectrum Health Primary Care Partners (Grand Rapids, MI), Saint Mary's Health Services (Grand Rapids, MI), Spectrum Health United (Greenville, MI) and Reed City Hospital Corporation (Reed City, MI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Carlos Weiss's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Carlos Weiss accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 1 other insurer list Carlos Weiss as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Carlos Weiss was last updated on February 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Carlos Orval Weiss, MD · NPI 1609880616
Geriatric Medicine physician in Byron Center, Michigan. Individual provider, active in the CMS NPPES registry since July 27, 2006.
## Identity
- **NPI:** 1609880616 (Entity type: Individual)
- **Enumerated:** July 27, 2006
- **Primary specialty:** Internal Medicine - Geriatric Medicine · taxonomy 207RG0300X
- **State license:** 4301074215 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 7751 BYRON CENTER AVE SW STE C, Byron Center, MI 49315-8001
- **Phone:** (616) 267-7668
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Advantage Health Saint Mary's Medical Group (NPI 1003515008, Byron Center, MI); Spectrum Health Primary Care Partners (NPI 1821422007, Grand Rapids, MI); Saint Mary's Health Services (NPI 1063917425, Grand Rapids, MI); Spectrum Health United (NPI 1538436852, Greenville, MI); Reed City Hospital Corporation (NPI 1538239892, Reed City, MI) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 22, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1609880616) · Data from the CMS NPPES public registry.