AN NGUYEN MD
NPI 1720608193
Internal Medicine - Critical Care Medicine in Kalamazoo, MI
About An Nguyen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AN NGUYEN MD (NPI 1720608193) is an individual critical care medicine provider in Kalamazoo, Michigan, licensed in Michigan (4301514930) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, is affiliated with Bronson Methodist Hospital, and is a graduate of Other (2020).
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
An Nguyen Md 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 An Nguyen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Kalamazoo, MI 49007
- Reassigned Medicare billing, Michigan enrollment
- 1,133 clinicians in this Medicare group
Battle Creek, MI 49017
- Reassigned Medicare billing, Michigan enrollment
- 557 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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Bronson Methodist Hospital
Acute Care Hospitals · Kalamazoo, MIBronson Battle Creek Hospital
Acute Care Hospitals · Battle Creek, MIBronson South Haven Hospital
Acute Care Hospitals · South Haven, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49007 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 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
KALAMAZOO, MI 49007
KALAMAZOO, MI 49007
KALAMAZOO, MI 49007
KALAMAZOO, MI 49007
KALAMAZOO, MI 49007
KALAMAZOO, MI 49007
KALAMAZOO, MI 49007
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 An Nguyen's NPI number?
The NPI number for An Nguyen is 1720608193. It was assigned to this individual provider in the NPPES registry on April 25, 2020.
Where is An Nguyen located?
An Nguyen practices at 601 John St Ste M-510, Kalamazoo, MI 49007. The listed phone number is (269) 341-7762.
What is An Nguyen's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is An Nguyen enrolled in Medicare?
Yes. An Nguyen 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 An Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), An Nguyen reassigns Medicare benefits to 2 organizations: Bronson Methodist Hospital (Kalamazoo, MI) and Bronson Battle Creek Hospital (Battle Creek, 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 An Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does An Nguyen accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list An Nguyen 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 An Nguyen affiliated with any hospitals?
According to CMS data, An Nguyen is affiliated with Bronson Methodist Hospital, Bronson Battle Creek Hospital and Bronson South Haven Hospital.
When was this NPI record last updated?
The NPPES record for An Nguyen was last updated on July 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# An Nguyen, MD · NPI 1720608193
Critical Care Medicine physician in Kalamazoo, Michigan. Individual provider, active in the CMS NPPES registry since April 25, 2020.
## Identity
- **NPI:** 1720608193 (Entity type: Individual)
- **Enumerated:** April 25, 2020
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 4301514930 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 601 JOHN ST STE M-510, Kalamazoo, MI 49007-5341
- **Phone:** (269) 341-7762
## 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): Bronson Methodist Hospital (NPI 1417961137, Kalamazoo, MI); Bronson Battle Creek Hospital (NPI 1093119638, Battle Creek, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** July 9, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1720608193) · Data from the CMS NPPES public registry.