Dr. Dennis L Simpson , MD
Internal Medicine โข Pullman, WA
825 Se Bishop Blvd Ste 200
Pullman, WA 991635537
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. Dennis Simpson is listed in NPPES under Internal Medicine.
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NPI assigned on July 7, 2006; this date does not establish years in practice.
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Published CMS data list 2,034 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99214 โ Established patient outpatient office visit: 297 service units.
- 36415 โ Insertion of needle into vein for collection of blood sample: 272 service units.
- 85025 โ Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count: 142 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ 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 24 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 3,169 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ 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 โ 259 prescription fills, including refills.
- Amlodipine Besylate โ 178 prescription fills, including refills.
- Simvastatin โ 163 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 61 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 90% of clinicians listed under Internal Medicine in Washington (2024, 1,563 clinicians with data). Median for this group: 445. Middle half: 181 to 884.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 8,840 in 2020 to 2,034 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
825 Se Bishop Blvd Ste 200
Pullman, WA 991635537
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Pullman, WA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
University Of Kansas School Of Med (Kc/wich/sal)
1976
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
305 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 โ by Provider, 2024.
Medicare-allowed amount
About $79,449 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 โ by Provider and Service, 2024.
Paid by Medicare
About $56,046 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 โ by Provider and Service, 2024.
30-day fills
7,092 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
$191,079 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 โ by Provider and Drug, 2024.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $15.29 in 2024
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 2024.
Years since graduation
50 years (graduated 1976)
CMS Doctors and Clinicians data list 1976 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2006
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.
May accept Medicare assignment
CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.
Ask the office before your visit. If a clinician does not accept assignment for a service, they can charge up to 15% more than the Medicare-approved amount, and you may be asked to pay the full amount at the visit.
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, โDoes your provider accept Medicare as full payment?โ
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.
Can order Medicare-covered services
CMS lists Dr. Simpson as eligible to order or refer durable medical equipment (DME) 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 Pullman and Washington
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 90% of clinicians listed under Internal Medicine in Washington (2024, 1,563 clinicians with data). Median for this group: 445. Middle half: 181 to 884.
Too few clinicians listed under Internal Medicine in Pullman have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 70% of clinicians listed under Internal Medicine in Washington (2024, 1,563 clinicians with data). Median for this group: $44,391. Middle half: $19,546 to $81,175.
Too few clinicians listed under Internal Medicine in Pullman have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 70% of clinicians listed under Internal Medicine in Washington (2024, 1,563 clinicians with data). Median for this group: $34,352. Middle half: $14,821 to $61,951.
Too few clinicians listed under Internal Medicine in Pullman have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 70% of clinicians listed under Internal Medicine in Washington (2024, 1,654 clinicians with data). Median for this group: 834. Middle half: 101 to 3,989.
Too few clinicians listed under Internal Medicine in Pullman have Medicare Part D data for 2024 to compare.
Part D drug cost
A higher Part D drug cost than 65% of clinicians listed under Internal Medicine in Washington (2024, 1,654 clinicians with data). Median for this group: $61,689. Middle half: $2,998 to $293,737.
Too few clinicians listed under Internal Medicine in Pullman have Medicare Part D data for 2024 to compare.
9 active clinicians are listed under Internal Medicine with a practice address in Pullman, WA (3,081 in Washington).
Addresses are self-reported to NPPES and may be out of date.
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 77% from 8,840 in 2020 to 2,034 in 2024.
- 2020: 8,840
- 2021: 8,559
- 2022: 7,335
- 2023: 5,725
- 2024: 2,034
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Medicare-allowed amount
Medicare-allowed amount decreased 76% from $336,551 in 2020 to $79,449 in 2024.
- 2020: $336,551
- 2021: $343,959
- 2022: $306,560
- 2023: $234,703
- 2024: $79,449
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Paid by Medicare
Paid by Medicare decreased 78% from $259,980 in 2020 to $56,046 in 2024.
- 2020: $259,980
- 2021: $266,632
- 2022: $231,391
- 2023: $178,991
- 2024: $56,046
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 42% from 5,451 in 2020 to 3,169 in 2024.
- 2020: 5,451
- 2021: 5,050
- 2022: 5,015
- 2023: 4,633
- 2024: 3,169
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30-day fills
30-day fills decreased 37% from 11,326 in 2020 to 7,092 in 2024.
- 2020: 11,326
- 2021: 10,678
- 2022: 10,621
- 2023: 10,331
- 2024: 7,092
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Part D drug cost
Part D drug cost decreased 19% from $235,565 in 2020 to $191,079 in 2024.
- 2020: $235,565
- 2021: $264,937
- 2022: $268,028
- 2023: $337,177
- 2024: $191,079
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $333.94 in 2019 to $15.29 in 2024.
- 2019: $333.94
- 2020: $55.49
- 2023: $49.33
- 2024: $15.29
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท 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 2024 (payments made January 1 โ December 31, 2024): fewer than 11 records totaling $15.29.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Otsuka America Pharmaceutical, Inc. |
Food and Beverage
In-kind items and services
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REXULTI | General | $15.29 |
Source: CMS Open Payments, program year 2024, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 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 โ by Provider and Service data, 2017โ2024; 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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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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297 | 190 | $179.00 | $128.66 |
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36415
Insertion of needle into vein for collection of blood sample
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272 | 164 | $15.00 | $8.55 |
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85025
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
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142 | 128 | $20.00 | $7.57 |
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80053
Blood test, comprehensive group of blood chemicals
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141 | 124 | $25.00 | $10.30 |
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17003
Destruction of precancer skin growth, 2-14 growths
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119 | 18 | $13.00 | $6.88 |
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80061
Blood test, lipids (cholesterol and triglycerides)
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118 | 110 | $48.00 | $12.79 |
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83721
Ldl cholesterol level
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118 | 110 | $23.00 | $10.03 |
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84443
Blood test, thyroid stimulating hormone (tsh)
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116 | 110 | $38.00 | $16.37 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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82 | 78 | $40.00 | $14.55 |
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86141
Measurement c-reactive protein for detection of infection or inflammation, high sensitivity
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81 | 79 | $31.00 | $12.59 |
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81003
Automated urinalysis test
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71 | 70 | $6.00 | $2.20 |
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83036
Hemoglobin a1c level
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64 | 56 | $23.00 | $9.42 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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57 | 57 | $135.00 | $133.16 |
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G0103
Prostate cancer screening; prostate specific antigen test (psa)
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56 | 56 | $42.00 | $18.58 |
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82306
Vitamin d-3 level
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51 | 51 | $59.00 | $29.01 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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42 | 40 | $121.00 | $92.45 |
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82043
Urine microalbumin (protein) level
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33 | 33 | $17.00 | $5.55 |
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82570
Creatinine level to test for kidney function or muscle injury
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33 | 33 | $15.00 | $4.98 |
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81001
Manual urinalysis test with examination using microscope, automated
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30 | 29 | $8.00 | $3.04 |
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93306
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function
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27 | 27 | $400.00 | $202.69 |
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93351
Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report
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26 | 26 | $499.00 | $238.72 |
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17000
Destruction of precancer skin growth, 1 growth
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24 | 22 | $125.00 | $69.60 |
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80048
Blood test, basic group of blood chemicals (calcium, total)
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18 | 13 | $20.00 | $8.29 |
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84550
Uric acid level, blood
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16 | 15 | $11.00 | $4.43 |
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 | 259 | 21,650 | $3,112.05 | 81 |
| Amlodipine Besylate | Amlodipine Besylate | 178 | 12,525 | $1,243.95 | 48 |
| Simvastatin | Simvastatin | 163 | 11,606 | $2,106.04 | 47 |
| Losartan Potassium | Losartan Potassium | 155 | 11,623 | $2,419.15 | 47 |
| Levothyroxine Sodium | Levothyroxine Sodium | 140 | 8,653 | $1,718.84 | 34 |
| Lisinopril | Lisinopril | 122 | 10,087 | $1,035.97 | 42 |
| Potassium Chloride | Potassium Chloride | 115 | 6,397 | $2,758.59 | 27 |
| Pantoprazole Sodium | Pantoprazole Sodium | 112 | 6,144 | $1,802.37 | 25 |
| Tamsulosin Hcl | Tamsulosin Hcl | 105 | 7,031 | $1,909.64 | 30 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 99 | 6,964 | $1,431.22 | 32 |
| Metoprolol Succinate | Metoprolol Succinate | 90 | 6,244 | $1,463.56 | 26 |
| Furosemide | Furosemide | 85 | 2,974 | $620.21 | 14 |
| Eliquis | Apixaban | 82 | 3,540 | $67,417.51 | 15 |
| Sertraline Hcl | Sertraline Hcl | 79 | 4,526 | $857.20 | 18 |
| Omeprazole | Omeprazole | 79 | 5,825 | $1,164.91 | 25 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 74 | 5,559 | $827.62 | 21 |
| Warfarin Sodium | Warfarin Sodium | 72 | 3,243 | $929.92 | 18 |
| Allopurinol | Allopurinol | 63 | 5,610 | $890.43 | 25 |
| Hydrochlorothiazide | Hydrochlorothiazide | 63 | 5,400 | $291.03 | 24 |
| Triamterene-Hydrochlorothiazid | Triamterene/Hydrochlorothiazid | 57 | 4,650 | $725.99 | 18 |
| Metformin Hcl | Metformin Hcl | 55 | 4,890 | $693.34 | 21 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 45 | 779 | $983.10 | 17 |
| Pravastatin Sodium | Pravastatin Sodium | 42 | 3,405 | $694.85 | 17 |
| Xarelto | Rivaroxaban | 39 | 1,936 | $34,850.40 | โ |
| Trazodone Hcl | Trazodone Hcl | 39 | 2,790 | $348.79 | 12 |
(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: 2021-07-07NUCC 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 PECOSSources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Secondary Practice Locations
19501 State Route 195
Pullman, WA 991639610
Phone: 5093322517
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Family Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Family Nurse Practitioner (Certified)
Physician Assistant - Medical
Physician Assistant (Certified)
Physician Assistant
Physician Assistant (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 825 SE BISHOP BLVD STE 200, PULLMAN, WA 991635537 (Tel: 5093322517)
NPI status registered as active in NPPES database
Registered at 19501 STATE ROUTE 195, PULLMAN, WA 991639610 (Tel: 5093322517)
Registered at 825 SE BISHOP BLVD STE 200, PULLMAN, WA 991635537 (Tel: 5093322517)
Recorded as DENNIS SIMPSON, M.D.
Internal Medicine (license number reported to NPPES: WA MD00020233)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Pullman
- Dr. Vinod Mehta, MD
- Dr. Selvasaravanakumar Navaneethakrishnanpoovana, MD
- Dr. Stephanie Fosback, MD
- Dr. Benno Mohr, MD
- Dr. Joseph Aiyenowo, MD
- Dr. Guillermo Modad, MD
Mailing Address
825 Se Bishop Blvd Ste 200
Pullman, WA 991635537
Phone: 5093322517