Dr. David P Larson , MD
Internal Medicine • Beaverton, OR
16043 Sw Waxwing Way
Beaverton, OR 970078362
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. David Larson is listed in NPPES under Internal Medicine.
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NPI assigned on August 30, 2005; this date does not establish years in practice.
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Published CMS data list 790 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99309 — Subsequent nursing facility care with moderate level of medical decision making, per day: 510 service units.
- 99310 — Subsequent nursing facility care with high level of medical decision making, per day: 181 service units.
- 99308 — Subsequent nursing facility care with straightforward level of medical decision making, per day: 67 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 4 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 33,898 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Atorvastatin Calcium — 2,173 prescription fills, including refills.
- Eliquis (Apixaban) — 1,720 prescription fills, including refills.
- Gabapentin — 1,511 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 279 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 75% of clinicians listed under Internal Medicine in Beaverton, OR (2024, 21 clinicians with data). Median for this group: 492. Middle half: 244 to 790.
More Medicare Part B services than 75% of clinicians listed under Internal Medicine in Oregon (2024, 992 clinicians with data). Median for this group: 375. Middle half: 179 to 697.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 1,296 in 2020 to 790 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
16043 Sw Waxwing Way
Beaverton, OR 970078362
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
660 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $88,953 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $65,118 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
33,978 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$2,088,560 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $17.47 in 2025
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2025.
NPI first issued
2005
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Larson has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Larson as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Beaverton and Oregon
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 75% of clinicians listed under Internal Medicine in Beaverton, OR (2024, 21 clinicians with data). Median for this group: 492. Middle half: 244 to 790.
More Medicare Part B services than 75% of clinicians listed under Internal Medicine in Oregon (2024, 992 clinicians with data). Median for this group: 375. Middle half: 179 to 697.
Medicare-allowed amount
A higher Medicare-allowed amount than 95% of clinicians listed under Internal Medicine in Beaverton, OR (2024, 21 clinicians with data). Median for this group: $31,114. Middle half: $22,056 to $49,442.
A higher Medicare-allowed amount than 85% of clinicians listed under Internal Medicine in Oregon (2024, 992 clinicians with data). Median for this group: $33,992. Middle half: $17,301 to $56,415.
Paid by Medicare
A higher Medicare payment amount than 95% of clinicians listed under Internal Medicine in Beaverton, OR (2024, 21 clinicians with data). Median for this group: $22,261. Middle half: $13,893 to $37,820.
A higher Medicare payment amount than 85% of clinicians listed under Internal Medicine in Oregon (2024, 992 clinicians with data). Median for this group: $25,069. Middle half: $12,204 to $40,893.
Medicare Part D prescriptions
More Part D prescriptions than 95% of clinicians listed under Internal Medicine in Beaverton, OR (2024, 37 clinicians with data). Median for this group: 4,025. Middle half: 1,358 to 7,171.
More Part D prescriptions than 95% of clinicians listed under Internal Medicine in Oregon (2024, 1,208 clinicians with data). Median for this group: 565. Middle half: 88 to 4,339.
Part D drug cost
A higher Part D drug cost than 95% of clinicians listed under Internal Medicine in Beaverton, OR (2024, 37 clinicians with data). Median for this group: $214,481. Middle half: $58,213 to $397,037.
A higher Part D drug cost than 95% of clinicians listed under Internal Medicine in Oregon (2024, 1,208 clinicians with data). Median for this group: $35,352. Middle half: $2,511 to $309,543.
46 active clinicians are listed under Internal Medicine with a practice address in Beaverton, OR (2,118 in Oregon).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Beaverton
30.4% of these 46 clinicians have the CMS telehealth indicator.
71.7% of these 46 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 39% from 1,296 in 2020 to 790 in 2024.
- 2020: 1,296
- 2021: 1,179
- 2022: 878
- 2023: 725
- 2024: 790
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Medicare-allowed amount
Medicare-allowed amount decreased 43% from $155,470 in 2020 to $88,953 in 2024.
- 2020: $155,470
- 2021: $152,934
- 2022: $115,658
- 2023: $98,472
- 2024: $88,953
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Paid by Medicare
Paid by Medicare decreased 46% from $121,258 in 2020 to $65,118 in 2024.
- 2020: $121,258
- 2021: $115,118
- 2022: $86,301
- 2023: $73,353
- 2024: $65,118
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 204% from 11,156 in 2020 to 33,898 in 2024.
- 2020: 11,156
- 2021: 19,309
- 2022: 24,083
- 2023: 26,066
- 2024: 33,898
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30-day fills
30-day fills increased 203% from 11,211 in 2020 to 33,978 in 2024.
- 2020: 11,211
- 2021: 19,367
- 2022: 24,165
- 2023: 26,184
- 2024: 33,978
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Part D drug cost
Part D drug cost increased 235% from $623,597 in 2020 to $2,088,560 in 2024.
- 2020: $623,597
- 2021: $1,175,605
- 2022: $1,545,226
- 2023: $1,639,049
- 2024: $2,088,560
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $378.65 in 2019 to $17.47 in 2025.
- 2019: $378.65
- 2020: $99.03
- 2022: $1,602.00
- 2025: $17.47
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $17.47.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Bristol Myers Squibb Company |
Education
In-kind items and services
|
ABILIFY | General | $17.47 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99309
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes
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510 | 443 | $236.00 | $102.32 |
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99310
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes
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181 | 174 | $350.00 | $146.11 |
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99308
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more
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67 | 56 | $178.00 | $71.59 |
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99306
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more
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32 | 32 | $430.00 | $172.73 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 2,173 | 47,100 | $44,031.51 | 394 |
| Eliquis | Apixaban | 1,720 | 24,419 | $514,279.31 | 233 |
| Gabapentin | Gabapentin | 1,511 | 34,173 | $43,327.85 | 259 |
| Levothyroxine Sodium | Levothyroxine Sodium | 1,359 | 20,638 | $12,974.28 | 194 |
| Furosemide | Furosemide | 1,135 | 17,938 | $8,993.93 | 171 |
| Amlodipine Besylate | Amlodipine Besylate | 887 | 20,176 | $11,902.63 | 183 |
| Metoprolol Succinate | Metoprolol Succinate | 878 | 19,037 | $16,278.13 | 159 |
| Potassium Chloride | Potassium Chloride | 791 | 17,894 | $16,130.65 | 139 |
| Tamsulosin Hcl | Tamsulosin Hcl | 780 | 16,027 | $17,374.61 | 163 |
| Lisinopril | Lisinopril | 678 | 16,040 | $9,532.38 | 144 |
| Metformin Hcl | Metformin Hcl | 662 | 14,436 | $9,855.03 | 121 |
| Losartan Potassium | Losartan Potassium | 654 | 14,428 | $10,177.80 | 145 |
| Sertraline Hcl | Sertraline Hcl | 629 | 15,408 | $13,528.57 | 109 |
| Oxycodone Hcl | Oxycodone Hcl | 628 | 5,969 | $12,628.86 | 139 |
| Duloxetine Hcl | Duloxetine Hcl | 571 | 12,626 | $22,472.06 | 116 |
| Pantoprazole Sodium | Pantoprazole Sodium | 528 | 11,389 | $13,848.02 | 98 |
| Metoprolol Tartrate | Metoprolol Tartrate | 472 | 9,528 | $4,785.40 | 100 |
| Clopidogrel | Clopidogrel Bisulfate | 452 | 8,447 | $10,848.44 | 75 |
| Baclofen | Baclofen | 389 | 9,141 | $16,603.72 | 51 |
| Carvedilol | Carvedilol | 387 | 8,159 | $6,801.41 | 85 |
| Trazodone Hcl | Trazodone Hcl | 383 | 8,547 | $6,201.90 | 97 |
| Jardiance | Empagliflozin | 383 | 5,237 | $104,947.16 | 57 |
| Torsemide | Torsemide | 364 | 8,358 | $8,737.60 | 90 |
| Levetiracetam | Levetiracetam | 358 | 7,364 | $17,089.30 | 51 |
| Spironolactone | Spironolactone | 336 | 7,427 | $3,992.65 | 72 |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2021-08-05NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20090515000113
OR
4688608565
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Family
Family Nurse Practitioner (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 16043 SW WAXWING WAY, BEAVERTON, OR 970078362 (Tel: 5037153414)
Registered at 6650 SW REDWOOD LN STE 380, PORTLAND, OR 972247169 (Tel: 5037153414)
Internal Medicine (license number reported to NPPES: OR MD29034)
NPI status registered as active in NPPES database
Registered at 9327 N 3RD ST, STE 206, PHOENIX, AZ 850202470 (Tel: 6024450751)
Registered at 9327 N 3RD ST, STE 206, PHOENIX, AZ 850202470 (Tel: 6024450751)
Recorded as DAVID LARSON, MD
Internal Medicine (license number reported to NPPES: AZ 34056)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Beaverton
- Dr. Madhu Potla, MD
- Dr. Christopher Morris, MD
- Dr. Thomas Gilberts, MD
- Amanda Andersen
- Dr. Emily Smith, DO
- Helena Pang
Mailing Address
6650 Sw Redwood Ln Ste 380
Portland, OR 972247169
Phone: 5037153414