Dr. Blake Chapman , DO
Internal Medicine β’ Nellis Afb, NV
4700 Las Vegas Blvd N
Nellis Afb, NV 891916600
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. Blake Chapman is listed in NPPES under Internal Medicine.
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NPI assigned on April 10, 2022; this date does not establish years in practice.
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Published CMS data list 169 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers β 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 β 26 prescription fills, including refills.
- Lisinopril β 19 prescription fills, including refills.
- Losartan Potassium β 18 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 11 records in the table Β· Guide: How to read Medicare Part D prescriber data
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Fewer Part D prescriptions than 70% of clinicians listed under Internal Medicine in Nevada (2024, 735 clinicians with data). Median for this group: 643. Middle half: 137 to 3,956.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 28 in 2023 to 169 in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2023β2024.
Practice Location & Contact Primary Location
4700 Las Vegas Blvd N
Nellis Afb, NV 891916600
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.
30-day fills
274 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
$15,166 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 β by Provider and Drug, 2024.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019β2025.
NPI first issued
2022
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, βDoes your provider accept Medicare as full payment?β
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 Nellis Afb and Nevada
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Fewer Part D prescriptions than 70% of clinicians listed under Internal Medicine in Nevada (2024, 735 clinicians with data). Median for this group: 643. Middle half: 137 to 3,956.
Too few clinicians listed under Internal Medicine in Nellis Afb have Medicare Part D data for 2024 to compare.
Part D drug cost
A lower Part D drug cost than 60% of clinicians listed under Internal Medicine in Nevada (2024, 735 clinicians with data). Median for this group: $32,802. Middle half: $3,761 to $339,646.
Too few clinicians listed under Internal Medicine in Nellis Afb have Medicare Part D data for 2024 to compare.
23 active clinicians are listed under Internal Medicine with a practice address in Nellis Afb, NV (1,229 in Nevada).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Nellis Afb
4.3% of these 23 clinicians have the CMS telehealth indicator.
26.1% of these 23 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 D prescriptions
Medicare Part D prescriptions increased 504% from 28 in 2023 to 169 in 2024.
- 2023: 28
- 2024: 169
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30-day fills
30-day fills increased 328% from 64 in 2023 to 274 in 2024.
- 2023: 64
- 2024: 274
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Part D drug cost
Part D drug cost went from $602 in 2023 to $15,166 in 2024.
- 2023: $602
- 2024: $15,166
Sources: 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 Β· Report an error.
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 | 26 | 1,560 | $183.97 | β |
| Lisinopril | Lisinopril | 19 | 1,290 | $93.95 | β |
| Losartan Potassium | Losartan Potassium | 18 | 1,020 | $113.11 | β |
| Amlodipine Besylate | Amlodipine Besylate | 17 | 1,230 | $248.34 | β |
| Levothyroxine Sodium | Levothyroxine Sodium | 15 | 690 | $56.60 | β |
| Januvia | Sitagliptin Phosphate | 13 | 450 | $8,490.72 | β |
| Omeprazole | Omeprazole | 13 | 390 | $237.38 | β |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 13 | 325 | $575.96 | β |
| Gabapentin | Gabapentin | 12 | 510 | $138.10 | β |
| Breo Ellipta | Fluticasone/Vilanterol | 12 | 360 | $4,906.56 | β |
| Sumatriptan Succinate | Sumatriptan Succinate | 11 | 330 | $121.44 | β |
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: 2025-08-23NUCC 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.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Social Worker - Clinical
Licensed Clinical Social Worker
Emergency Medicine
Doctor of Medicine (M.D.)
Internal Medicine - Gastroenterology
Doctor of Medicine (M.D.)
Nurse Anesthetist, Certified Registered
Doctor of Nursing Practice, Certified Registered Nurse Anesthetist
Physical Therapist
Doctor of Physical Therapy
Nurse Practitioner - Family
Advanced Practice Registered Nurse
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 4700 LAS VEGAS BLVD N, NELLIS AFB, NV 891916600 (Tel: 7026532273)
Registered at 4700 LAS VEGAS BLVD N, NELLIS AFB, NV 891916600 (Tel: 7026532273)
Recorded as BLAKE CHAPMAN, DO
Internal Medicine (license number reported to NPPES: NC 2025-02877)
NPI status registered as active in NPPES database
Registered at 1638 OWEN DRIVE, FAYETTEVILLE, NC 28304 (Tel: 9106153960)
Registered at 1638 OWEN DRIVE, FAYETTEVILLE, NC 28304 (Tel: 9106153960)
Recorded as BLAKE CHAPMAN
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Nellis Afb
- Dr. Shubhang Mazumdar, MD
- Dr. Cherylene Abalos, DO
- Dr. Joshua Fields, MD
- Dr. Huiling Wolff-Koo, MD
- Dr. Jared Joffer, DO
- Dr. Frank Andriola, MD
Mailing Address
4700 Las Vegas Blvd N
Nellis Afb, NV 891916600
Phone: 7026532273