Dr. Aaron Chase Maxwell , MD
Internal Medicine โข Austin, TX
1004 W 32nd St Ste 400
Austin, TX 787051915
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. Aaron Maxwell is listed in NPPES under Internal Medicine.
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NPI assigned on November 21, 2006; this date does not establish years in practice.
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Published CMS data list 4,409 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: 486 service units.
- 36415 โ Insertion of needle into vein for collection of blood sample: 437 service units.
- 80053 โ Blood test, comprehensive group of blood chemicals: 372 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 35 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 5,053 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 575 prescription fills, including refills.
- Amlodipine Besylate โ 382 prescription fills, including refills.
- Levothyroxine Sodium โ 350 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 85 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 Austin, TX (2024, 269 clinicians with data). Median for this group: 578. Middle half: 242 to 1,086.
More Medicare Part B services than 90% of clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: 645. Middle half: 277 to 1,322.
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 5,321 in 2020 to 4,409 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
1004 W 32nd St Ste 400
Austin, TX 787051915
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
375 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 $118,895 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 $93,710 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
12,455 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
$260,217 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.
Open Payments general payments, program year 2024
All general payments: $57.55 across 3 records.
By nature of payment
- Food and Beverage: $57.55 across 3 records.
Reporting-company totals
- Novo Nordisk Inc: $41.38 across 2 records.
- ABBVIE INC.: $16.17 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2024 (published June 30, 2026).
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.
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, 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.
Enrolled in Medicare (PECOS)
Dr. Maxwell 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. Maxwell 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 Austin and Texas
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 Austin, TX (2024, 269 clinicians with data). Median for this group: 578. Middle half: 242 to 1,086.
More Medicare Part B services than 90% of clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: 645. Middle half: 277 to 1,322.
Medicare-allowed amount
A higher Medicare-allowed amount than 80% of clinicians listed under Internal Medicine in Austin, TX (2024, 269 clinicians with data). Median for this group: $60,949. Middle half: $26,085 to $98,273.
A higher Medicare-allowed amount than 75% of clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: $61,221. Middle half: $27,420 to $115,826.
Paid by Medicare
A higher Medicare payment amount than 80% of clinicians listed under Internal Medicine in Austin, TX (2024, 269 clinicians with data). Median for this group: $47,232. Middle half: $20,508 to $77,772.
A higher Medicare payment amount than 75% of clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: $47,501. Middle half: $20,446 to $90,051.
Medicare Part D prescriptions
More Part D prescriptions than 85% of clinicians listed under Internal Medicine in Austin, TX (2024, 299 clinicians with data). Median for this group: 278. Middle half: 56 to 2,862.
More Part D prescriptions than 75% of clinicians listed under Internal Medicine in Texas (2024, 5,674 clinicians with data). Median for this group: 828. Middle half: 121 to 4,824.
Part D drug cost
A higher Part D drug cost than 80% of clinicians listed under Internal Medicine in Austin, TX (2024, 299 clinicians with data). Median for this group: $16,522. Middle half: $774 to $198,601.
A higher Part D drug cost than 65% of clinicians listed under Internal Medicine in Texas (2024, 5,674 clinicians with data). Median for this group: $64,859. Middle half: $4,211 to $436,775.
607 active clinicians are listed under Internal Medicine with a practice address in Austin, TX (9,191 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Austin
16.5% of these 607 clinicians have the CMS telehealth indicator.
46.1% of these 607 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 17% from 5,321 in 2020 to 4,409 in 2024.
- 2020: 5,321
- 2021: 6,033
- 2022: 5,442
- 2023: 3,926
- 2024: 4,409
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Medicare-allowed amount
Medicare-allowed amount decreased 12% from $135,236 in 2020 to $118,895 in 2024.
- 2020: $135,236
- 2021: $141,432
- 2022: $125,216
- 2023: $110,557
- 2024: $118,895
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Paid by Medicare
Paid by Medicare decreased 13% from $107,326 in 2020 to $93,710 in 2024.
- 2020: $107,326
- 2021: $116,081
- 2022: $105,947
- 2023: $89,648
- 2024: $93,710
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 16% from 4,338 in 2020 to 5,053 in 2024.
- 2020: 4,338
- 2021: 4,992
- 2022: 4,906
- 2023: 4,986
- 2024: 5,053
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30-day fills
30-day fills increased 34% from 9,272 in 2020 to 12,455 in 2024.
- 2020: 9,272
- 2021: 11,572
- 2022: 11,527
- 2023: 11,826
- 2024: 12,455
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Part D drug cost
Part D drug cost increased 84% from $141,721 in 2020 to $260,217 in 2024.
- 2020: $141,721
- 2021: $237,334
- 2022: $225,764
- 2023: $305,736
- 2024: $260,217
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $36.11 in 2020 to $57.55 in 2024.
- 2020: $36.11
- 2021: $30.48
- 2022: $29.65
- 2023: $127.46
- 2024: $57.55
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 $57.55.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Wegovy | General | $26.88 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
UBRELVY | General | $16.17 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Wegovy | General | $14.50 |
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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486 | 238 | $175.00 | $125.44 |
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36415
Insertion of needle into vein for collection of blood sample
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437 | 302 | $16.00 | $8.65 |
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80053
Blood test, comprehensive group of blood chemicals
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372 | 291 | $54.00 | $10.24 |
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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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322 | 274 | $36.00 | $7.56 |
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80061
Blood test, lipids (cholesterol and triglycerides)
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305 | 273 | $73.00 | $13.12 |
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G2211
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
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279 | 167 | $25.00 | $16.16 |
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81003
Automated urinalysis test
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278 | 253 | $19.00 | $2.19 |
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83036
Hemoglobin a1c level
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269 | 231 | $42.00 | $9.42 |
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84443
Blood test, thyroid stimulating hormone (tsh)
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266 | 255 | $98.00 | $16.46 |
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G0444
Annual depression screening, 5 to 15 minutes
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233 | 233 | $30.00 | $19.08 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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219 | 217 | $78.00 | $14.28 |
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82306
Vitamin d-3 level
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129 | 125 | $120.00 | $28.94 |
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83550
Iron binding capacity
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70 | 64 | $38.00 | $8.45 |
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83540
Iron level
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69 | 63 | $28.00 | $6.34 |
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84153
Psa (prostate specific antigen) measurement, total
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69 | 63 | $85.00 | $18.02 |
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G0103
Prostate cancer screening; prostate specific antigen test (psa)
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65 | 65 | $85.00 | $18.92 |
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84550
Uric acid level, blood
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49 | 47 | $22.00 | $4.43 |
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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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48 | 43 | $140.00 | $84.79 |
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G0447
Face-to-face behavioral counseling for obesity, 15 minutes
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43 | 43 | $35.00 | $25.04 |
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77080
Dxa bone density measurement of hip, pelvis, spine
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41 | 41 | $150.00 | $39.36 |
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82607
Cyanocobalamin (vitamin b-12) level
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38 | 34 | $100.00 | $14.78 |
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82728
Ferritin (blood protein) level
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38 | 35 | $85.00 | $13.36 |
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90662
Influenza vaccine split virus, preservative free
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38 | 38 | $90.00 | $81.82 |
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G0008
Administration of influenza virus vaccine
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38 | 38 | $35.00 | $32.50 |
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83615
Lactate dehydrogenase (enzyme) level
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32 | 30 | $25.00 | $5.92 |
(top 25 shown)
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 | 575 | 48,889 | $4,452.52 | 163 |
| Amlodipine Besylate | Amlodipine Besylate | 382 | 30,512 | $2,318.51 | 95 |
| Levothyroxine Sodium | Levothyroxine Sodium | 350 | 27,164 | $4,589.14 | 85 |
| Lisinopril | Lisinopril | 226 | 18,770 | $1,790.35 | 60 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 214 | 16,867 | $2,986.74 | 65 |
| Escitalopram Oxalate | Escitalopram Oxalate | 189 | 14,517 | $2,650.85 | 52 |
| Trazodone Hcl | Trazodone Hcl | 184 | 9,872 | $1,266.24 | 53 |
| Losartan Potassium | Losartan Potassium | 165 | 12,515 | $1,631.11 | 45 |
| Tamsulosin Hcl | Tamsulosin Hcl | 155 | 12,394 | $3,061.56 | 46 |
| Omeprazole | Omeprazole | 134 | 10,236 | $1,490.96 | 39 |
| Metformin Hcl | Metformin Hcl | 122 | 10,020 | $568.21 | 31 |
| Hydrochlorothiazide | Hydrochlorothiazide | 112 | 9,641 | $852.38 | 34 |
| Metoprolol Succinate | Metoprolol Succinate | 112 | 8,914 | $1,882.78 | 34 |
| Amitriptyline Hcl | Amitriptyline Hcl | 81 | 4,724 | $1,228.35 | 22 |
| Bupropion Xl | Bupropion Hcl | 72 | 5,264 | $1,724.13 | 24 |
| Simvastatin | Simvastatin | 70 | 5,520 | $614.28 | 18 |
| Pravastatin Sodium | Pravastatin Sodium | 67 | 4,530 | $626.04 | 14 |
| Eliquis | Apixaban | 65 | 3,316 | $60,759.94 | 14 |
| Duloxetine Hcl | Duloxetine Hcl | 64 | 4,620 | $1,452.57 | 19 |
| Pantoprazole Sodium | Pantoprazole Sodium | 61 | 4,906 | $737.70 | 20 |
| Synthroid | Levothyroxine Sodium | 58 | 4,110 | $4,389.15 | 14 |
| Gabapentin | Gabapentin | 56 | 3,660 | $396.77 | 19 |
| Montelukast Sodium | Montelukast Sodium | 55 | 4,950 | $688.57 | 16 |
| Allopurinol | Allopurinol | 53 | 4,367 | $447.84 | 16 |
| Tramadol Hcl | Tramadol Hcl | 50 | 435 | $100.93 | 22 |
(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: 2022-06-09NUCC 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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20041004000999
TX
2769441948
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.
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Physician Assistant - Medical
Physician Assistant (Certified)
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1004 W 32ND ST STE 400, AUSTIN, TX 787051915 (Tel: 5124545171)
Registered at 1004 W 32ND ST STE 400, AUSTIN, TX 787051915 (Tel: 5124545171)
Registered at 1301 W 38TH ST STE 601, AUSTIN, TX 787051015 (Tel: 5124545171)
Registered at 1301 W 38TH ST STE 601, AUSTIN, TX 787051015 (Tel: 5124545171)
Recorded as AARON MAXWELL, MD
NPI status registered as active in NPPES database
Registered at 601 E 15TH ST, AUSTIN, TX 787011930 (Tel: 5123247000)
Registered at 1601 RIO GRANDE ST, SUITE 340, AUSTIN, TX 787011137 (Tel: 5123248960)
Recorded as AARON MAXWELL, M.D.
Internal Medicine (license number reported to NPPES: TX L9804)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Austin
- Dr. Balakumar Pandian, MD
- Dr. Saad Ahmad, DO
- Dr. Revathy Subramany, MD
- Dr. Marisa Chagoya, MD
- Dr. Emmanuel Edoka, MD
- Dr. Gayathri Nanja, MD
Mailing Address
1004 W 32nd St Ste 400
Austin, TX 787051915
Phone: 5124545171