$26 in research paymentsPancreatic NeoplasmsPancreatic DiseasesFOLFOXPegilodecakin
Dr. Timothy George Larson, MD
NPI1326130204PAC ID0446214985
- Medicare services, 2024
- 335
- Medicare patients, 2024
- 69
- Part D claims, 2024
- 350
- Clinical trials
- 4
- MIPS score, 2024
- 89
- Practice address
- 640 Jackson Street, Saint Paul, MN 55101
- Practice phone
- Call (651) 254-1616
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Larson's professional email, personal email and mobile number
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Dr. Timothy George Larson is a hematologist and oncologist in Saint Paul, Minnesota
Dr. Larson practices at Regions Hospital in Saint Paul, Minnesota, part of HealthPartners.
Dr. Larson's NPI, 1326130204, was assigned on September 29, 2006. Dr. Larson graduated from University of California, San Francisco School of Medicine in 1989. Dr. Larson holds Minnesota license 38013.
NPI and contact details
- NPI
- 1326130204NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446214985
- NPI enumeration date
- September 29, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (651) 254-1616
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Timothy George Larson practices at Regions Hospital in Saint Paul, Minnesota
Dr. Larson's primary practice is Regions Hospital, at 640 Jackson Street, Saint Paul, MN 55101 in Ramsey County. The practice phone is (651) 254-1616.
- Regions Hospital640 Jackson Street, Saint Paul, MN 55101 · Ramsey CountyPhone(651) 254-1616
Source: Dmand AI Affiliation Data
Dr. Timothy George Larson is affiliated with 3 sites of care and 2 medical groups
Dr. Larson's primary practice is Regions Hospital in Saint Paul, Minnesota, part of HealthPartners. The medical group on file is HealthPartners. Dmand AI also links Dr. Larson to 2 more group practices and clinics and 1 medical group, each named with a free account.
HealthPartners2 group practices and clinicsNames with a free account1 medical groupName with a free account
See all 5 affiliations for Dr. LarsonSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Timothy George Larson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Larson practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Regions Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Timothy George Larson is one of 213 hematologists and oncologists in Minnesota
Hematology and oncology is Dr. Larson's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Larson is licensed in Minnesota.
Specialties and state licenses
- Hematology and oncology, MinnesotaPrimary
Hematologists and oncologists near Dr. Larson
Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.
213hematologists and oncologists in Minnesota23hematologists and oncologists in Saint Paul8hematologists and oncologists at Regions Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Timothy George Larson billed Medicare for 335 services in 2024
CMS data shows 335 Medicare services from Dr. Larson across 8 procedure codes in 2024, for 69 Medicare patients. Medicare paid $15,853 for them.
Medicare services, 2024335
Medicare patients69
Paid by Medicare$15,853
Procedure codes8
Dr. Larson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3272024: 12861%
- Other services
- 2023: 352024: 92163%
- Lab and pathology
- 2023: 5932024: 7188%
- Surgery
- 2023: 2252024: 3286%
- Tests and treatments
- 2023: 8842024: 1299%
- Drugs given in the office
- 2023: 9,5542024: 0100%
Where Dr. Larson's Medicare services took place, 2024
- In an office11534%
- In a facility22066%
Dr. Larson compared with the Minnesota median for hematologists and oncologists, 2024
- Dr. Larson
- Minnesota median
- Medicare services
- 335vs 38413% below
- Medicare patients
- 69vs 15054% below
- Part D claims
- 154vs 32853% below
Medians across 209 hematologists and oncologists in Minnesota with Dmand AI profiles that report each measure.
Dr. Larson's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Timothy George Larson treated 69 Medicare patients in 2024, average age 72
CMS counts 69 Medicare patients who saw Dr. Larson in 2024. The largest group is 65 to 74, with 38 patients. 59% of them have high blood pressure, and 57% have cancer. Their average risk score is 2.29, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Larson's median patient age at 69, with 44% women.
Medicare patients, 202469
Average age72
Average risk score2.29
Dr. Larson's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Larson's Medicare patients by sex, 2024
- Women3449%
- Men3551%
Chronic conditions among Dr. Larson's Medicare patients, 2024
- High blood pressure59%
- Cancer57%
- High cholesterol57%
- Anxiety33%
- Diabetes33%
- Arthritis28%
- Mood disorders25%
- Chronic kidney disease22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Larson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women44%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Timothy George Larson wrote 350 Medicare Part D claims in 2024
In 2024, Dr. Larson wrote 350 Medicare Part D claims for 73 patients. 75% of them were for generic drugs. CMS names the drug for 154 of them, across 9 drugs with 11 or more claims each, at $228,574 in total drug cost. In 2023, CMS named 358 claims across 16 drugs.
Part D claims, 2024350
Drugs named by CMS9
Total drug cost$228,574
Part D patients73
Dr. Larson's Part D claims by kind of drug, 2024
- Generic263 claims75%
- Brand-name and other87 claims25%
Dr. Larson's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Larson's Part D claims, 2024
- Opioids4%13 of 350 claims
- Antipsychotics, patients 65 and over6%20 of 350 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3582024: 15457%
Drugs named by CMS: 9 in 2024, 16 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Timothy George Larson scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Larson for performance year 2024, reported through an alternative payment model (APM). Dr. Larson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Larson as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Larson's MIPS scores, performance year 2024
- 89of 100Final score
- 72.3of 100Quality
- 98of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Timothy George Larson has worked on 4 clinical trials
Dmand AI links Dr. Larson to 4 clinical trials. 2 are still active or recruiting. Conditions studied include Breast Neoplasms, Endometrial Neoplasms and Neoplasm Metastasis. Eli Lilly and Company sponsors the most, 4. Open Payments lists research payments to Dr. Larson that name 4 trials.
Conditions in Dr. Larson's trials
- Breast Neoplasms
- Endometrial Neoplasms
- Neoplasm Metastasis
- Pancreatic Neoplasms
- Breast Diseases
Investigators on the most trials with Dr. Larson
- Shakeela Wazeen Bahadur, MD3 shared trials
- Elgene Lim, MD3 shared trials
- Lida A. Mina, MD3 shared trials
Recent clinical trials with Dr. Larson
A Study of LY3484356 in Participants With Advanced or Metastatic Breast Cancer or Endometrial Cancer (opens in a new tab)
Active, not recruiting
$150 in research paymentsEndometrial NeoplasmsUterine NeoplasmsLY3484356AbemaciclibAlpelisib
A Study of Imlunestrant, Investigator's Choice of Endocrine Therapy, and Imlunestrant Plus Abemaciclib in Participants With ER+, HER2- Advanced Breast Cancer (opens in a new tab)
Active, not recruiting
$57 in research paymentsNeoplasm MetastasisNeoplastic ProcessesAbemaciclibImlunestrantExemestane
$1,229 in research paymentsBreast NeoplasmsBreast DiseasesAbemaciclibStandard Adjuvant ET
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
Dr. Timothy George Larson received $14,171 in industry payments from 2016 to 2025
CMS Open Payments shows 18 general payments to Dr. Larson from 10 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 88% of the total. Genentech, Inc. paid the most, $8,850. It also lists 11 research payments totaling $6,963 from 2019 to 2022, naming 4 clinical trials.
General payments to Dr. Larson by program year, 2016 to 2025
General payments to Dr. Larson by kind, 2016 to 2025
$14.2Kin total
- Consulting fees$12,50488%
- Travel and lodging$9277%
- Food and beverage$5974%
- Grants$1201%
- Education$230%
Companies that paid Dr. Larson the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Timothy George Larson graduated from University of California, San Francisco School of Medicine
Dr. Larson graduated from University of California, San Francisco School of Medicine in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Timothy George Larson's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Clinical trials and co-investigators | ClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Timothy George Larson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Timothy George Larson's NPI number?
Dr. Timothy George Larson's NPI number is 1326130204. It was assigned on September 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Timothy George Larson?
Dr. Timothy George Larson is a hematologist and oncologist in Saint Paul, Minnesota. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Timothy George Larson practice?
Dr. Larson practices at 640 Jackson Street, Saint Paul, MN 55101. Dr. Larson's primary practice is Regions Hospital in Saint Paul, Minnesota, part of HealthPartners. Dmand AI also links Dr. Larson to 2 group practices and clinics and 1 medical group.
What is Dr. Timothy George Larson's office phone number?
The practice phone on file for Dr. Larson is (651) 254-1616.
What is Dr. Timothy George Larson's medical license number?
Dr. Larson holds Minnesota license 38013.
Which hospitals is Dr. Timothy George Larson affiliated with?
Dr. Larson practices at Regions Hospital in Saint Paul, Minnesota.
What medical group is Dr. Timothy George Larson part of?
Dr. Larson is linked to HealthPartners. Dmand AI links Dr. Larson to 1 more medical group.
Does Dr. Timothy George Larson accept Medicare?
Yes. CMS data shows Dr. Larson billed Medicare for 335 services in 2024, and Dr. Larson accepts Medicare assignment.
Does Dr. Timothy George Larson offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Larson as offering telehealth services.
What is Dr. Timothy George Larson's MIPS score?
Dr. Larson's MIPS final score for performance year 2024 is 89 out of 100, reported through an alternative payment model (APM).
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. Timothy George Larson see?
CMS counts 69 Medicare patients who saw Dr. Larson in 2024, with an average age of 72.
What services does Dr. Timothy George Larson bill to Medicare?
In 2024, Dr. Larson's most billed Medicare services were medicare service (G2211), office visit, established patient (99215) and office visit, established patient (99214).
Where did Dr. Timothy George Larson go to medical school?
Dr. Larson graduated from University of California, San Francisco School of Medicine in 1989.
What drugs does Dr. Timothy George Larson prescribe most?
In 2024 Medicare Part D data, Dr. Larson's most prescribed drugs by claims were Dexamethasone, Ondansetron HCl and Lorazepam.
Has Dr. Timothy George Larson received payments from drug or device companies?
CMS Open Payments shows $14,171 in general payments to Dr. Larson from 10 companies from 2016 to 2025. The largest total came from Genentech, Inc.
How long has Dr. Timothy George Larson been practicing?
Dr. Larson graduated from medical school in 1989, 37 years ago.
Does Dr. Timothy George Larson do research?
Dr. Larson has worked on 4 clinical trials.
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