Dr. Karen E. Larson, MD
- Medicare services, 2024
- 1,987
- Medicare patients, 2024
- 167
- Part D claims, 2024
- 5,620
- Hospital affiliations
- 1
- Industry payments
- $242
- Practice address
- 222 22nd N Ave, Nashville, TN 37203
- Practice phone
- Call (629) 255-2620
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Heritage Medical Associates
Nashville, Tennessee
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. Karen E. Larson is an internist in Nashville, Tennessee
Dr. Larson practices at Heritage Medical Associates in Nashville, Tennessee.
Dr. Larson's NPI, 1245275593, was assigned on June 19, 2006. Dr. Larson graduated from Vanderbilt University School of Medicine in 2003. Dr. Larson holds Tennessee license 40823.
- NPI
- 1245275593NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0749283273
- NPI enumeration date
- June 19, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (629) 255-2620
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Karen E. Larson practices at Heritage Medical Associates in Nashville, Tennessee
Dr. Larson's primary practice is Heritage Medical Associates, at 222 22nd N Ave, Nashville, TN 37203 in Davidson County. The practice phone is (629) 255-2620.
- Heritage Medical Associates222 22nd N Ave, Nashville, TN 37203 · Davidson CountyPhone(629) 255-2620
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Karen E. Larson is affiliated with 3 sites of care and 1 medical group
Dr. Larson's primary practice is Heritage Medical Associates in Nashville, Tennessee. Dr. Larson is also affiliated with Ascension Saint Thomas Hospital West. The medical group on file is Heritage Medical Associates. Dmand AI also links Dr. Larson to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Karen E. Larson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Larson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Heritage Medical Associates | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Karen E. Larson is one of 2,427 internists in Tennessee
Internal medicine is Dr. Larson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Larson is licensed in Tennessee.
Specialties and state licenses
- Internal medicine, TennesseePrimary
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. Karen E. Larson billed Medicare for 1,987 services in 2024
CMS data shows 1,987 Medicare services from Dr. Larson across 27 procedure codes in 2024, for 167 Medicare patients. Medicare paid $60,436 for them. Every service was in an office.
Dr. Larson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 1,0172024: 9526%
- Other services
- 2023: 2932024: 3137%
- Surgery
- 2023: 2692024: 2449%
- Office and hospital visits
- 2023: 2062024: 1955%
- Imaging
- 2023: 1632024: 1662%
- Tests and treatments
- 2023: 1472024: 11720%
Dr. Larson compared with the Tennessee median for internists, 2024
- Dr. Larson
- Tennessee median
- Medicare services
- 1,987vs 6713.0 times
- Medicare patients
- 167vs 22225% below
- Part D claims
- 5,018vs 33415.0 times
Medians across 2,462 internists in Tennessee 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Larson and other internists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Karen E. Larson treated 167 Medicare patients in 2024, average age 72
CMS counts 167 Medicare patients who saw Dr. Larson in 2024. The largest group is 65 to 74, with 102 patients. 71% of them have high cholesterol, and 70% have high blood pressure. Their average risk score is 0.78, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Larson's median patient age at 57, with 84% women.
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
- Women14184%
- Men2616%
Chronic conditions among Dr. Larson's Medicare patients, 2024
- High cholesterol71%
- High blood pressure70%
- Arthritis38%
- Diabetes22%
- Mood disorders21%
- Depression20%
- Osteoporosis17%
- Cancer14%
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 57
Patient panel by sex, all payers
- Women84%
- Men15%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Karen E. Larson wrote 5,620 Medicare Part D claims in 2024
In 2024, Dr. Larson wrote 5,620 Medicare Part D claims for 415 patients. 85% of them were for generic drugs. CMS names the drug for 5,018 of them, across 91 drugs with 11 or more claims each, at $546,496 in total drug cost. In 2023, CMS named 4,746 claims across 94 drugs.
Dr. Larson's Part D claims by kind of drug, 2024
- Generic4,789 claims85%
- Brand-name and other831 claims15%
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
- Opioids1%83 of 5,620 claims
- Antibiotics2%135 of 5,620 claims
- Antipsychotics, patients 65 and over0%14 of 5,620 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: 4,7462024: 5,0186%
Drugs named by CMS: 91 in 2024, 94 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. Karen E. Larson offers telehealth to Medicare patients
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
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Karen E. Larson received $242 in industry payments from 2017 to 2025
CMS Open Payments shows 12 general payments to Dr. Larson from 8 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 78% of the total. Abbott Laboratories paid the most, $90.
General payments to Dr. Larson by program year, 2017 to 2025
General payments to Dr. Larson by kind, 2017 to 2025
- Food and beverage$18978%
- Education$5322%
Companies that paid Dr. Larson the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Karen E. Larson graduated from Vanderbilt University School of Medicine
Dr. Larson graduated from Vanderbilt University School of Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Karen E. 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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. Karen E. 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. Karen E. Larson's NPI number?
Dr. Karen E. Larson's NPI number is 1245275593. It was assigned on June 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Karen E. Larson?
Dr. Karen E. Larson is an internist in Nashville, Tennessee. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Karen E. Larson practice?
Dr. Larson practices at 222 22nd N Ave, Nashville, TN 37203. Dr. Larson's primary practice is Heritage Medical Associates in Nashville, Tennessee. Dmand AI also links Dr. Larson to 1 group practice or clinic.
What is Dr. Karen E. Larson's office phone number?
The practice phone on file for Dr. Larson is (629) 255-2620.
What is Dr. Karen E. Larson's medical license number?
Dr. Larson holds Tennessee license 40823.
Which hospitals is Dr. Karen E. Larson affiliated with?
Dr. Larson is affiliated with Ascension Saint Thomas Hospital West.
What medical group is Dr. Karen E. Larson part of?
Dr. Larson is linked to Heritage Medical Associates.
Does Dr. Karen E. Larson accept Medicare?
Yes. CMS data shows Dr. Larson billed Medicare for 1,987 services in 2024, and Dr. Larson accepts Medicare assignment.
Does Dr. Karen E. Larson offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Larson as offering telehealth services.
How many Medicare patients does Dr. Karen E. Larson see?
CMS counts 167 Medicare patients who saw Dr. Larson in 2024, with an average age of 72.
Show 5 more questionsShow fewer questions
What services does Dr. Karen E. Larson bill to Medicare?
In 2024, Dr. Larson's most billed Medicare services were surgery: heart and blood vessels (36415), lab and pathology test (80053) and lab and pathology test (84443).
Where did Dr. Karen E. Larson go to medical school?
Dr. Larson graduated from Vanderbilt University School of Medicine in 2003.
What drugs does Dr. Karen E. Larson prescribe most?
In 2024 Medicare Part D data, Dr. Larson's most prescribed drugs by claims were Rosuvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.
Has Dr. Karen E. Larson received payments from drug or device companies?
CMS Open Payments shows $242 in general payments to Dr. Larson from 8 companies from 2017 to 2025. The largest total came from Abbott Laboratories.
How long has Dr. Karen E. Larson been practicing?
Dr. Larson graduated from medical school in 2003, 23 years ago.
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