LOUIS M WONG KEE SONG M.D.
NPI 1861471765
Internal Medicine - Gastroenterology in Rochester, MN
About Louis M Wong Kee Song M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LOUIS M WONG KEE SONG M.D. (NPI 1861471765) is an individual gastroenterology provider in Rochester, Minnesota, licensed in Minnesota (36425) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Mayo Clinic Hospital Rochester, and maintains a secondary practice location in Jacksonville.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Louis M Wong Kee Song M.d. 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 Louis Wong Kee Song reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rochester, MN 55905
- Reassigned Medicare billing, Minnesota enrollment
- 6,534 clinicians in this Medicare group
Jacksonville, FL 32224
- Reassigned Medicare billing, Florida enrollment
- 1,828 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 9
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mayo Clinic Hospital Rochester
Acute Care Hospitals · Rochester, MNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 55905 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.
ROCHESTER, MN 55905
ROCHESTER, MN 55905
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 Louis Wong Kee Song's NPI number?
The NPI number for Louis Wong Kee Song is 1861471765. It was assigned to this individual provider in the NPPES registry on January 10, 2006.
Where is Louis Wong Kee Song located?
Louis Wong Kee Song practices at 200 1st St SW, Rochester, MN 55905. The listed phone number is (507) 284-2511.
What is Louis Wong Kee Song's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Louis Wong Kee Song enrolled in Medicare?
Yes. Louis Wong Kee Song 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 Louis Wong Kee Song's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Louis Wong Kee Song reassigns Medicare benefits to 2 organizations: Mayo Clinic (Rochester, MN) and Mayo Clinic Jacksonville (Jacksonville, FL). 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 Louis Wong Kee Song's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Louis Wong Kee Song accept?
Health plans from Blue Cross Blue Shield of North Dakota list Louis Wong Kee Song 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 Louis Wong Kee Song affiliated with any hospitals?
According to CMS data, Louis Wong Kee Song is affiliated with Mayo Clinic Hospital Rochester.
When was this NPI record last updated?
The NPPES record for Louis Wong Kee Song was last updated on August 21, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Louis M Wong Kee Song, M.D. · NPI 1861471765
Gastroenterology physician in Rochester, Minnesota. Individual provider, active in the CMS NPPES registry since January 10, 2006.
## Identity
- **NPI:** 1861471765 (Entity type: Individual)
- **Enumerated:** January 10, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 36425 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 1ST ST SW, Rochester, MN 55905-0001
- **Phone:** (507) 284-2511
## 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): Mayo Clinic (NPI 1114343860, Rochester, MN); Mayo Clinic Jacksonville (NPI 1174143986, Jacksonville, FL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1992
## Record status
- **NPPES last updated:** August 21, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1861471765) · Data from the CMS NPPES public registry.