Dr. Lance C. Larson, MD
- Medicare services, 2024
- 2,203
- Medicare patients, 2024
- 631
- Part D claims, 2024
- 6,331
- Hospital affiliations
- 2
- Industry payments
- $81
- Practice address
- 1100 9th Ave, Seattle, WA 98101
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Virginia Mason Medical Center - HOPD
Acute Care Hospital outpatient department · Seattle, Washington
Find Dr. Larson's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Lance C. Larson is an internist in Seattle, Washington
Dr. Larson practices at Virginia Mason Medical Center - HOPD in Seattle, Washington.
Dr. Larson's NPI, 1851310510, was assigned on July 19, 2006. Dr. Larson graduated from Loyola University of Chicago, Stritch School of Medicine in 1990. Dr. Larson holds Washington license MD00030152.
- NPI
- 1851310510NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789733791
- NPI enumeration date
- July 19, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lance C. Larson practices at Virginia Mason Medical Center - HOPD in Seattle, Washington
Dr. Larson's primary practice is Virginia Mason Medical Center - HOPD, at 1100 9th Ave, Seattle, WA 98101.
- Virginia Mason Medical Center - HOPD1100 9th Ave, Seattle, WA 98101
Source: Dmand AI Affiliation Data
Dr. Lance C. Larson is affiliated with 6 sites of care and 1 medical group
Dr. Larson's primary practice is Virginia Mason Medical Center - HOPD in Seattle, Washington. Dr. Larson is also affiliated with Virginia Mason Medical Center. The medical group on file is Virginia Mason Medical Center. Dmand AI also links Dr. Larson to 1 more hospital, 1 home health agency, 1 imaging center and 1 ambulatory surgery center, each named with a free account. Dr. Larson's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Lance C. Larson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Larson practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Virginia Mason Medical Center - HOPD | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lance C. Larson is one of 2,689 internists in Washington
Internal medicine is Dr. Larson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Larson is licensed in Washington.
Specialties and state licenses
- Internal medicine, WashingtonPrimary
Internists near Dr. Larson
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Lance C. Larson billed Medicare for 2,203 services in 2024
CMS data shows 2,203 Medicare services from Dr. Larson across 22 procedure codes in 2024, for 631 Medicare patients. Medicare paid $130,324 for them. Every service was in an office.
Dr. Larson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0832024: 1,0265%
- Other services
- 2023: 3692024: 50838%
- Surgery
- 2023: 4272024: 37811%
- Tests and treatments
- 2023: 2022024: 2188%
- Lab and pathology
- 2023: 912024: 7320%
Dr. Larson compared with the Washington median for internists, 2024
- Dr. Larson
- Washington median
- Medicare services
- 2,203vs 3646.1 times
- Medicare patients
- 631vs 1653.8 times
- Part D claims
- 5,682vs 18231.2 times
Medians across 2,604 internists in Washington 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.
Need commercial claims for Dr. Larson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Larson and other internists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lance C. Larson treated 631 Medicare patients in 2024, average age 76
CMS counts 631 Medicare patients who saw Dr. Larson in 2024. The largest group is 65 to 74, with 272 patients. 62% of them have high blood pressure, and 61% have high cholesterol. 2% are also on Medicaid. Their average risk score is 0.94, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Larson's median patient age at 68, with 32% women.
Dr. Larson's Medicare patients by age, 2024
Dr. Larson's Medicare patients by sex, 2024
- Women23637%
- Men39563%
Chronic conditions among Dr. Larson's Medicare patients, 2024
- High blood pressure62%
- High cholesterol61%
- Arthritis35%
- Atrial fibrillation23%
- Cancer18%
- Ischemic heart disease18%
- Mood disorders14%
- Heart failure13%
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 68
Patient panel by sex, all payers
- Women32%
- Men68%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lance C. Larson wrote 6,331 Medicare Part D claims in 2024
In 2024, Dr. Larson wrote 6,331 Medicare Part D claims for 713 patients. 92% of them were for generic drugs. CMS names the drug for 5,682 of them, across 85 drugs with 11 or more claims each, at $410,336 in total drug cost. In 2023, CMS named 5,828 claims across 89 drugs.
Dr. Larson's Part D claims by kind of drug, 2024
- Generic5,832 claims92%
- Brand-name480 claims8%
- Other19 claims0%
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
- Antibiotics2%101 of 6,331 claims
- Antipsychotics, patients 65 and over1%32 of 6,331 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: 5,8282024: 5,6823%
Drugs named by CMS: 85 in 2024, 89 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. Lance C. Larson ranks in the 66th percentile for removal of skin lesions in Medicare
Dr. Larson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Larson as offering telehealth. CMS counts 22 procedures of removal of skin lesions by Dr. Larson, more than 66% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Larson ranks in Medicare procedure volume
- Removal of skin lesions
- 66th percentile22 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Lance C. Larson received $81 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Larson from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Saluda Medical Americas, Inc. paid the most, $81.
Companies that paid Dr. Larson the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lance C. Larson graduated from Loyola University of Chicago, Stritch School of Medicine
Dr. Larson graduated from Loyola University of Chicago, Stritch School of Medicine in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Lance C. 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 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| 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. Lance C. 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. Lance C. Larson's NPI number?
Dr. Lance C. Larson's NPI number is 1851310510. It was assigned on July 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Lance C. Larson?
Dr. Lance C. Larson is an internist in Seattle, Washington. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Lance C. Larson practice?
Dr. Larson practices at 1100 9th Ave, Seattle, WA 98101. Dr. Larson's primary practice is Virginia Mason Medical Center - HOPD in Seattle, Washington. Dmand AI also links Dr. Larson to 1 hospital, 1 home health agency, 1 imaging center and 1 ambulatory surgery center.
What is Dr. Lance C. Larson's medical license number?
Dr. Larson holds Washington license MD00030152.
Which hospitals is Dr. Lance C. Larson affiliated with?
Dr. Larson is affiliated with Virginia Mason Medical Center. Dmand AI links Dr. Larson to 1 more hospital.
What medical group is Dr. Lance C. Larson part of?
Dr. Larson is linked to Virginia Mason Medical Center.
Does Dr. Lance C. Larson accept Medicare?
Yes. CMS data shows Dr. Larson billed Medicare for 2,203 services in 2024, and Dr. Larson accepts Medicare assignment.
Does Dr. Lance C. Larson offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Larson as offering telehealth services.
How many Medicare patients does Dr. Lance C. Larson see?
CMS counts 631 Medicare patients who saw Dr. Larson in 2024, with an average age of 76.
What services does Dr. Lance C. Larson bill to Medicare?
In 2024, Dr. Larson's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and medicare service (G0439).
Show 4 more questionsShow fewer questions
Where did Dr. Lance C. Larson go to medical school?
Dr. Larson graduated from Loyola University of Chicago, Stritch School of Medicine in 1990.
What drugs does Dr. Lance C. Larson prescribe most?
In 2024 Medicare Part D data, Dr. Larson's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Rosuvastatin Calcium.
Has Dr. Lance C. Larson received payments from drug or device companies?
CMS Open Payments shows $81 in general payments to Dr. Larson from 1 company from 2024 to 2024. The largest total came from Saluda Medical Americas, Inc.
How long has Dr. Lance C. Larson been practicing?
Dr. Larson graduated from medical school in 1990, 36 years ago.
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