GORDON J RUAN MD
NPI 1982109369
Internal Medicine - Hematology & Oncology in Rochester, MN
About Gordon J Ruan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GORDON J RUAN MD (NPI 1982109369) is an individual hematology & oncology provider in Rochester, Minnesota, licensed in Minnesota (65920) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS, is affiliated with Park Nicollet Methodist Hospital, and is a graduate of Southern Illinois University School Of Medicine (2018).
NPPES Registry Identity
Specialties & Licenses 2
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
Gordon J Ruan 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
4Medicare enrollment records show Gordon Ruan reassigns Medicare billing to 4 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
Red Wing, MN 55066
- Reassigned Medicare billing, Minnesota enrollment
- Also billed through NPI 1063435410 (Minnesota)
- 1,571 clinicians in this Medicare group
Apple Valley, MN 55124
- Reassigned Medicare billing, Minnesota enrollment
- 2,274 clinicians in this Medicare group
St Louis Park, MN 55416
- Reassigned Medicare billing, Minnesota enrollment
- Medicare enrollment name: Park Nicollet Clinic
- 2,527 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 3
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Park Nicollet Methodist Hospital
Acute Care Hospitals · Saint Louis Park, MNRegions Hospital
Acute Care Hospitals · Saint Paul, 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 Gordon Ruan's NPI number?
The NPI number for Gordon Ruan is 1982109369. It was assigned to this individual provider in the NPPES registry on March 27, 2018.
Where is Gordon Ruan located?
Gordon Ruan practices at 200 1st St SW, Rochester, MN 55905. The listed phone number is (507) 284-2511.
What is Gordon Ruan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Gordon Ruan enrolled in Medicare?
Yes. Gordon Ruan 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 Gordon Ruan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gordon Ruan reassigns Medicare benefits to 4 organizations: Mayo Clinic (Rochester, MN), Mayo Clinic Health System-Southeast Minnesota Region (Red Wing, MN), Group Health, Inc. (Apple Valley, MN) and Park Nicollet Methodist Hospital (St Louis Park, MN). 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 Gordon Ruan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gordon Ruan accept?
Health plans from HealthPartners list Gordon Ruan 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 Gordon Ruan affiliated with any hospitals?
According to CMS data, Gordon Ruan is affiliated with Park Nicollet Methodist Hospital and Regions Hospital.
When was this NPI record last updated?
The NPPES record for Gordon Ruan was last updated on January 7, 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.
# Gordon J Ruan, MD · NPI 1982109369
Hematology & Oncology physician in Rochester, Minnesota. Individual provider, active in the CMS NPPES registry since March 27, 2018.
## Identity
- **NPI:** 1982109369 (Entity type: Individual)
- **Enumerated:** March 27, 2018
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** 65920 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 1ST ST SW, Rochester, MN 55905
- **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:** 4 organizations under Medicare reassignment (form CMS-855R): Mayo Clinic (NPI 1114343860, Rochester, MN); Mayo Clinic Health System-Southeast Minnesota Region (NPI 1114453883, Red Wing, MN); Group Health, Inc. (NPI 1073668877, Apple Valley, MN); Park Nicollet Methodist Hospital (NPI 1194113217, St Louis Park, MN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Southern Illinois University School Of Medicine, class of 2018
## Record status
- **NPPES last updated:** January 7, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1982109369) · Data from the CMS NPPES public registry.