DR. TIMOTHY GEORGE LARSON M.D.
NPI 1326130204
Internal Medicine - Hematology & Oncology in Minneapolis, MN
About Dr. Timothy George Larson M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TIMOTHY GEORGE LARSON M.D. (NPI 1326130204) is an individual hematology & oncology provider in Minneapolis, Minnesota, licensed in Minnesota (38013) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Regions Hospital, and is a graduate of University Of California, San Francisco School Of Medicine (1989).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 7
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
Dr. Timothy George Larson 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 Timothy Larson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Minneapolis, MN 55404
- Reassigned Medicare billing, Minnesota enrollment
- 128 clinicians in this Medicare group
Minneapolis, MN 55454
- Reassigned Medicare billing, Minnesota enrollment
- 2,274 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 7
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.
Regions Hospital
Acute Care Hospitals · Saint Paul, MNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 55404 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
MINNEAPOLIS, MN 55404
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 Timothy Larson's NPI number?
The NPI number for Timothy Larson is 1326130204. It was assigned to this individual provider in the NPPES registry on September 29, 2006.
Where is Timothy Larson located?
Timothy Larson practices at 910 E 26th St Suite 200, Minneapolis, MN 55404. The listed phone number is (612) 884-6300.
What is Timothy Larson's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Timothy Larson enrolled in Medicare?
Yes. Timothy Larson 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 Timothy Larson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Larson reassigns Medicare benefits to 2 organizations: Minnesota Oncology Hematology, PA (Minneapolis, MN) and Group Health, Inc. (Minneapolis, 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 Timothy Larson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Timothy Larson accept?
Health plans from HealthPartners list Timothy Larson 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 Timothy Larson affiliated with any hospitals?
According to CMS data, Timothy Larson is affiliated with Regions Hospital.
When was this NPI record last updated?
The NPPES record for Timothy Larson was last updated on October 27, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Dr. Timothy George Larson, M.D. · NPI 1326130204
Hematology & Oncology physician in Minneapolis, Minnesota. Individual provider, active in the CMS NPPES registry since September 29, 2006.
## Identity
- **NPI:** 1326130204 (Entity type: Individual)
- **Enumerated:** September 29, 2006
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** 38013 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 910 E 26TH ST, SUITE 200, Minneapolis, MN 55404-4526
- **Phone:** (612) 884-6300 · **Fax:** (612) 884-6363
## 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): Minnesota Oncology Hematology, PA (NPI 1518000918, Minneapolis, MN); Group Health, Inc. (NPI 1700932449, Minneapolis, MN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Francisco School Of Medicine, class of 1989
## Record status
- **NPPES last updated:** October 27, 2011
- **Other identifiers:** Medicare ID-Type Unspecified 830000132 (MN); Medicare UPIN F39555 (MN); Medicaid 892718900 (MN); and 4 more
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Source: [NPI Profile](https://npiprofile.com/npi/1326130204) · Data from the CMS NPPES public registry.