Dr. Brian E Willmon , MD
Internal Medicine • Clovis, NM
2000 W 21st St, Ste W-8
Clovis, NM 88101
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. Brian Willmon is listed in NPPES under Internal Medicine.
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NPI assigned on March 17, 2006; this date does not establish years in practice.
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Published CMS data list 394 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:
- 99214 — Established patient outpatient office visit: 353 service units.
- 99213 — Established patient outpatient office visit: 41 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 the full table · Guide: How to read Medicare Part B data
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Published CMS data list 2,732 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 — 234 prescription fills, including refills.
- Levothyroxine Sodium — 163 prescription fills, including refills.
- Lisinopril — 122 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 73 records in the table · Guide: How to read Medicare Part D prescriber data
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Close to the middle for Medicare Part B services among clinicians listed under Internal Medicine in New Mexico (2024, 381 clinicians with data). Median for this group: 353. Middle half: 191 to 693.
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 183 in 2020 to 394 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
2000 W 21st St
Ste W-8
Clovis, NM 88101
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
University Of New Mexico School Of Medicine
1983
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
141 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 $30,726 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 $19,465 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
5,862 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
$137,657 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)
No Open Payments records are listed for this clinician for 2019–2025.
Years since graduation
43 years (graduated 1983)
CMS Doctors and Clinicians data list 1983 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, “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.
Compared with the same specialty in Clovis and New Mexico
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Internal Medicine in New Mexico (2024, 381 clinicians with data). Median for this group: 353. Middle half: 191 to 693.
Too few clinicians listed under Internal Medicine in Clovis have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
Close to the middle for clinicians listed under Internal Medicine in New Mexico (2024, 381 clinicians with data). Median for this group: $35,302. Middle half: $19,108 to $71,758.
Too few clinicians listed under Internal Medicine in Clovis have Medicare Part B data for 2024 to compare.
Paid by Medicare
A lower Medicare payment amount than 60% of clinicians listed under Internal Medicine in New Mexico (2024, 381 clinicians with data). Median for this group: $26,893. Middle half: $13,737 to $56,168.
Too few clinicians listed under Internal Medicine in Clovis have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 75% of clinicians listed under Internal Medicine in New Mexico (2024, 396 clinicians with data). Median for this group: 368. Middle half: 79 to 2,290.
Too few clinicians listed under Internal Medicine in Clovis 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 New Mexico (2024, 396 clinicians with data). Median for this group: $37,492. Middle half: $2,062 to $221,185.
Too few clinicians listed under Internal Medicine in Clovis have Medicare Part D data for 2024 to compare.
7 active clinicians are listed under Internal Medicine with a practice address in Clovis, NM (770 in New Mexico).
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 increased 115% from 183 in 2020 to 394 in 2024.
- 2020: 183
- 2021: 337
- 2022: 427
- 2023: 403
- 2024: 394
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Medicare-allowed amount
Medicare-allowed amount increased 113% from $14,439 in 2020 to $30,726 in 2024.
- 2020: $14,439
- 2021: $32,008
- 2022: $39,359
- 2023: $37,708
- 2024: $30,726
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Paid by Medicare
Paid by Medicare increased 170% from $7,216 in 2020 to $19,465 in 2024.
- 2020: $7,216
- 2021: $23,647
- 2022: $27,143
- 2023: $26,407
- 2024: $19,465
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Medicare Part D prescriptions
Medicare Part D prescriptions varied from year to year: 2,509 in 2020 and 2,732 in 2024.
- 2020: 2,509
- 2021: 1,332
- 2022: 2,224
- 2023: 2,589
- 2024: 2,732
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30-day fills
30-day fills increased 24% from 4,708 in 2020 to 5,862 in 2024.
- 2020: 4,708
- 2021: 2,674
- 2022: 4,466
- 2023: 5,144
- 2024: 5,862
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Part D drug cost
Part D drug cost increased 67% from $82,602 in 2020 to $137,657 in 2024.
- 2020: $82,602
- 2021: $30,026
- 2022: $91,166
- 2023: $134,805
- 2024: $137,657
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
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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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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353 | 129 | $97.69 | $81.04 |
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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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41 | 29 | $73.00 | $51.67 |
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 | 234 | 16,515 | $1,849.26 | 70 |
| Levothyroxine Sodium | Levothyroxine Sodium | 163 | 12,711 | $1,790.12 | 42 |
| Lisinopril | Lisinopril | 122 | 9,417 | $678.36 | 36 |
| Omeprazole | Omeprazole | 103 | 5,974 | $736.81 | 26 |
| Gabapentin | Gabapentin | 92 | 5,080 | $1,630.56 | 27 |
| Simvastatin | Simvastatin | 87 | 5,742 | $481.82 | 19 |
| Amlodipine Besylate | Amlodipine Besylate | 76 | 5,968 | $422.11 | 23 |
| Potassium Chloride | Potassium Chloride | 74 | 5,361 | $1,573.56 | 26 |
| Hydrochlorothiazide | Hydrochlorothiazide | 66 | 5,278 | $165.82 | 18 |
| Furosemide | Furosemide | 65 | 4,880 | $305.96 | 23 |
| Metformin Hcl Er | Metformin Hcl | 65 | 4,633 | $857.36 | 21 |
| Metformin Hcl | Metformin Hcl | 62 | 4,374 | $328.04 | 20 |
| Losartan Potassium | Losartan Potassium | 60 | 5,147 | $892.25 | 24 |
| Pantoprazole Sodium | Pantoprazole Sodium | 55 | 4,407 | $768.36 | 19 |
| Meloxicam | Meloxicam | 54 | 3,170 | $215.92 | 20 |
| Metoprolol Succinate | Metoprolol Succinate | 54 | 3,372 | $712.40 | 15 |
| Glipizide Er | Glipizide | 53 | 4,010 | $658.49 | 14 |
| Januvia | Sitagliptin Phosphate | 52 | 2,105 | $36,529.90 | — |
| Tamsulosin Hcl | Tamsulosin Hcl | 47 | 3,478 | $483.12 | 13 |
| Montelukast Sodium | Montelukast Sodium | 46 | 3,041 | $425.57 | 16 |
| Duloxetine Hcl | Duloxetine Hcl | 42 | 2,541 | $864.75 | — |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 41 | 1,909 | $5,473.91 | — |
| Clopidogrel | Clopidogrel Bisulfate | 40 | 2,640 | $440.06 | — |
| Eliquis | Apixaban | 37 | 1,830 | $34,824.25 | — |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 35 | 927 | $487.54 | — |
(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
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
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
Certified Nurse Practitioner
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Nurse Practitioner - Obstetrics & Gynecology
Certified Nurse Practitioner
Career & Practice History
NPI enumerated March 17, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Internal Medicine Providers in Clovis
- Dr. Dhirendra Lamba, MD
- Dr. Tobore Kokoricha, MD
- Ahmed Salman
- Dr. Donna Thibodeau, MD
- Adila Chaudhry
- Dr. Nicole Naifeh, DO
Mailing Address
2200 W 21st St
Clovis, NM 881012011
Phone: 5757607134