ALEXANDER WAYNE COBB DO
NPI 1427543990
Internal Medicine in Grand Rapids, MI
About Alexander Wayne Cobb Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER WAYNE COBB DO (NPI 1427543990) is an individual internal medicine provider in Grand Rapids, Michigan, licensed in Michigan (5101024900) and active in the NPI registry since June 2018. He is enrolled in Medicare PECOS, is affiliated with Mclaren Bay Region, and is a graduate of Other (2018).
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 and accepts Medicare assignment
Alexander Wayne Cobb Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Alexander Cobb reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Flint, MI 48532
- Reassigned Medicare billing, Michigan enrollment
- 444 clinicians in this Medicare group
Bay City, MI 48708
- Reassigned Medicare billing, Michigan enrollment
- 250 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mclaren Bay Region
Acute Care Hospitals · Bay City, MIMclaren Central Michigan
Acute Care Hospitals · Mount Pleasant, MIMymichigan Medical Center Midland
Acute Care Hospitals · Midland, MIMclaren Thumb Region
Critical Access Hospitals · Bad Axe, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49503 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.
GRAND RAPIDS, MI 49503
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 Alexander Cobb's NPI number?
The NPI number for Alexander Cobb is 1427543990. It was assigned to this individual provider in the NPPES registry on June 27, 2018.
Where is Alexander Cobb located?
Alexander Cobb practices at 100 Michigan St NE, Grand Rapids, MI 49503. The listed phone number is (616) 391-3139.
What is Alexander Cobb's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Alexander Cobb enrolled in Medicare?
Yes. Alexander Cobb is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Alexander Cobb's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Cobb reassigns Medicare benefits to 2 organizations: Mclaren Hospital Group (Flint, MI) and Mclaren Bay Region (Bay 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 Alexander Cobb's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alexander Cobb accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan and Ambetter from Meridian list Alexander Cobb 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.
Is Alexander Cobb affiliated with any hospitals?
According to CMS data, Alexander Cobb is affiliated with Mclaren Bay Region, Mclaren Central Michigan, Mymichigan Medical Center Midland and Mclaren Thumb Region.
When was this NPI record last updated?
The NPPES record for Alexander Cobb was last updated on January 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 months 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.
# Alexander Wayne Cobb, DO · NPI 1427543990
Internal Medicine physician in Grand Rapids, Michigan. Individual provider, active in the CMS NPPES registry since June 27, 2018.
## Identity
- **NPI:** 1427543990 (Entity type: Individual)
- **Enumerated:** June 27, 2018
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 5101024900 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 100 MICHIGAN ST NE, Grand Rapids, MI 49503-2560
- **Phone:** (616) 391-3139
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Mclaren Hospital Group (NPI 1942026174, Flint, MI); Mclaren Bay Region (NPI 1508131087, Bay City, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** January 14, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1427543990) · Data from the CMS NPPES public registry.