Dr. Mark Carlton Brown, MD
- Medicare services, 2022
- 1,328
- Part D claims, 2024
- 20
- Industry payments
- $9,176
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 14678 N Del Webb Blvd, Sun City, AZ 85351-2137
- Practice phone
- Call (623) 933-8289
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
The Maxwell Group - Sun City (N Del Webb Blvd)
Primary care practice · Sun City, Arizona
Find Dr. Brown's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mark Carlton Brown is an internist in Sun City, Arizona
Dr. Brown practices at The Maxwell Group - Sun City (N Del Webb Blvd) in Sun City, Arizona.
Dr. Brown's NPI, 1225021264, was assigned on August 24, 2005. Dr. Brown holds Arizona license 19655.
- NPI
- 1225021264NPI Registry (opens in a new tab)
- NPI enumeration date
- August 24, 2005
- NPI status
- Active
- Practice phone
- (623) 933-8289
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Carlton Brown practices at The Maxwell Group - Sun City (N Del Webb Blvd) in Sun City, Arizona
Dr. Brown's primary practice is The Maxwell Group - Sun City (N Del Webb Blvd), at 14678 N Del Webb Blvd, Sun City, AZ 85351-2137. The practice phone is (623) 933-8289.
- The Maxwell Group - Sun City (N Del Webb Blvd)14678 N Del Webb Blvd, Sun City, AZ 85351-2137Phone(623) 933-8289
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Carlton Brown is affiliated with 1 site of care and 1 medical group
Dr. Brown's primary practice is The Maxwell Group - Sun City (N Del Webb Blvd) in Sun City, Arizona. The medical group on file is The Maxwell Group.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Mark Carlton Brown's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Brown practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Maxwell Group - Sun City (N Del Webb Blvd) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Carlton Brown is one of 2,420 internists in Arizona
Internal medicine is Dr. Brown's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Brown is licensed in Arizona.
Specialties and state licenses
- Internal medicine, ArizonaPrimary
Internists near Dr. Brown
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark Carlton Brown billed Medicare for 1,328 services in 2022
CMS data shows 1,328 Medicare services from Dr. Brown across 9 procedure codes in 2022. Medicare paid $84,227 for them. Every service was in an office.
Dr. Brown's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 1,3602022: 74845%
- Other services
- 2021: 6272022: 42333%
- Tests and treatments
- 2021: 2612022: 15740%
- Surgery
- 2021: 112022: 0100%
Dr. Brown compared with the Arizona median for internists, 2022
- Dr. Brown
- Arizona median
- Medicare services
- 1,328vs 4762.8 times
- Part D claims
- 1,847vs 2607.1 times
Medians across 2,300 internists in Arizona with Dmand AI profiles that report each measure.
Dr. Brown's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Brown?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Brown and other internists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Carlton Brown's patients have a median age of 79
Across all payers, Dmand AI patient panel data puts Dr. Brown's median patient age at 79, with 43% women.
Dr. Brown's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 79
Patient panel by sex, all payers
- Women43%
- Men55%
Source: Dmand AI Patient Panel Data
Dr. Mark Carlton Brown wrote 20 Medicare Part D claims in 2024
In 2024, Dr. Brown wrote 20 Medicare Part D claims. 95% of them were for generic drugs. They cover 43 drugs, with $89,630 in total drug cost. In 2022, CMS named 10,120 claims across 124 drugs.
Dr. Brown's Part D claims by kind of drug, 2024
- Generic19 claims95%
- Brand-name and other1 claims5%
Dr. Brown's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 10,1202023: 1,84782%
Drugs named by CMS: 43 in 2023, 124 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Mark Carlton Brown received $9,176 in industry payments from 2016 to 2025
CMS Open Payments shows 534 general payments to Dr. Brown from 46 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $1,227.
General payments to Dr. Brown by program year, 2016 to 2025
Companies that paid Dr. Brown the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark Carlton Brown's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mark Carlton Brown
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mark Carlton Brown's NPI number?
Dr. Mark Carlton Brown's NPI number is 1225021264. It was assigned on August 24, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Carlton Brown?
Dr. Mark Carlton Brown is an internist in Sun City, Arizona. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Mark Carlton Brown practice?
Dr. Brown practices at 14678 N Del Webb Blvd, Sun City, AZ 85351-2137. Dr. Brown's primary practice is The Maxwell Group - Sun City (N Del Webb Blvd) in Sun City, Arizona.
What is Dr. Mark Carlton Brown's office phone number?
The practice phone on file for Dr. Brown is (623) 933-8289.
What is Dr. Mark Carlton Brown's medical license number?
Dr. Brown holds Arizona license 19655.
What medical group is Dr. Mark Carlton Brown part of?
Dr. Brown is linked to The Maxwell Group.
Does Dr. Mark Carlton Brown accept Medicare?
Yes. CMS data shows Dr. Brown billed Medicare for 1,328 services in 2022.
What services does Dr. Mark Carlton Brown bill to Medicare?
In 2022, Dr. Brown's most billed Medicare services were office visit, established patient (99214), medicare service (G0444) and medicare service (G0439).
What drugs does Dr. Mark Carlton Brown prescribe most?
In 2023 Medicare Part D data, Dr. Brown's most prescribed drugs by claims were Levothyroxine Sodium, Atorvastatin Calcium and Metoprolol Succinate.
Has Dr. Mark Carlton Brown received payments from drug or device companies?
CMS Open Payments shows $9,176 in general payments to Dr. Brown from 46 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Mark Carlton Brown been practicing?
Dr. Brown graduated from medical school in 1984, 42 years ago.
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