Dr. Cary Douglas Brown, MD
- Medicare services, 2024
- 1,664
- Medicare patients, 2024
- 254
- Part D claims, 2024
- 58
- Hospital affiliations
- 1
- Industry payments
- $623
- Practice address
- 9901 Medical Center Dr, Rockville, MD 20850
- Practice phone
- Call (301) 279-6155
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Shady Grove Adventist Hospital
Rockville, Maryland
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. Cary Douglas Brown is a general surgeon in Rockville, Maryland
Dr. Brown practices at Shady Grove Adventist Hospital in Rockville, Maryland.
Dr. Brown's NPI, 1992700629, was assigned on June 17, 2005. Dr. Brown graduated from University of Maryland School of Medicine in 1972. Dr. Brown holds Maryland license D-18658.
- NPI
- 1992700629NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325227994
- NPI enumeration date
- June 17, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (301) 279-6155
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 80
- Medical school graduation
- 1972
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Cary Douglas Brown practices at Shady Grove Adventist Hospital in Rockville, Maryland
Dr. Brown's primary practice is Shady Grove Adventist Hospital, at 9901 Medical Center Dr, Rockville, MD 20850 in Montgomery County. The practice phone is (301) 279-6155.
- Shady Grove Adventist Hospital9901 Medical Center Dr, Rockville, MD 20850 · Montgomery CountyPhone(301) 279-6155
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Cary Douglas Brown is affiliated with 2 sites of care and 2 medical groups
Dr. Brown's primary practice is Shady Grove Adventist Hospital in Rockville, Maryland. Dr. Brown is also affiliated with Adventist HealthCare Shady Grove Medical Center. The medical group on file is Adventist Medical Group. Dmand AI also links Dr. Brown to 1 more medical group, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Cary Douglas 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 |
|---|---|
| Shady Grove Adventist Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Cary Douglas Brown is one of 532 general surgeons in Maryland
Surgery is Dr. Brown's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Brown is licensed in Maryland.
Specialties and state licenses
- Surgery, MarylandPrimary
General surgeons near Dr. Brown
Counts of general surgeons 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. Cary Douglas Brown billed Medicare for 1,664 services in 2024
CMS data shows 1,664 Medicare services from Dr. Brown across 7 procedure codes in 2024, for 254 Medicare patients. Medicare paid $64,375 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Brown's Medicare services by type, 2024
- Office and hospital visits1,042
- Surgery521
- Tests and treatments101
Dr. Brown compared with the Maryland median for general surgeons, 2024
- Dr. Brown
- Maryland median
- Medicare services
- 1,664vs 2307.2 times
- Medicare patients
- 254vs 16257% above
- Part D claims
- 13vs 2650% below
Medians across 485 general surgeons in Maryland with Dmand AI profiles that report each measure.
Dr. Brown's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Brown and other general surgeons in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Cary Douglas Brown treated 254 Medicare patients in 2024, average age 79
CMS counts 254 Medicare patients who saw Dr. Brown in 2024. The largest group is 75 to 84, with 100 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 2.55, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Brown's median patient age at 79, with 50% women.
Dr. Brown's Medicare patients by age, 2024
Dr. Brown's Medicare patients by sex, 2024
- Women13453%
- Men12047%
Chronic conditions among Dr. Brown's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis64%
- Diabetes40%
- Mood disorders37%
- Chronic kidney disease36%
- Ischemic heart disease35%
- Atrial fibrillation34%
Share of Medicare patients with each condition. A patient can have several.
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
- Women50%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Cary Douglas Brown wrote 58 Medicare Part D claims in 2024
In 2024, Dr. Brown wrote 58 Medicare Part D claims for 20 patients. 81% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $156 in total drug cost.
Dr. Brown's Part D claims by kind of drug, 2024
- Generic47 claims81%
- Brand-name and other11 claims19%
Dr. Brown's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
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
Dr. Cary Douglas Brown ranks in the 95th percentile for removal of tissue in Medicare
Dr. Brown accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 337 procedures of removal of tissue by Dr. Brown, more than 95% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Brown ranks in Medicare procedure volume
- Removal of tissue
- 95th percentile337 procedures
- Removal of skin lesions
- 68th percentile30 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Cary Douglas Brown received $623 in industry payments from 2024 to 2025
CMS Open Payments shows 8 general payments to Dr. Brown from 4 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 50% of the total. Integra LifeSciences Corporation paid the most, $328.
General payments to Dr. Brown by program year, 2024 to 2025
General payments to Dr. Brown by kind, 2024 to 2025
- Food and beverage$31150%
- Device or supply loans$29147%
- Travel and lodging$223%
Companies that paid Dr. Brown the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Cary Douglas Brown graduated from University of Maryland School of Medicine
Dr. Brown graduated from University of Maryland School of Medicine in 1972.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Cary Douglas 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Cary Douglas 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. Cary Douglas Brown's NPI number?
Dr. Cary Douglas Brown's NPI number is 1992700629. It was assigned on June 17, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Cary Douglas Brown?
Dr. Cary Douglas Brown is a general surgeon in Rockville, Maryland. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Cary Douglas Brown practice?
Dr. Brown practices at 9901 Medical Center Dr, Rockville, MD 20850. Dr. Brown's primary practice is Shady Grove Adventist Hospital in Rockville, Maryland. Dmand AI also links Dr. Brown to 1 medical group.
What is Dr. Cary Douglas Brown's office phone number?
The practice phone on file for Dr. Brown is (301) 279-6155.
What is Dr. Cary Douglas Brown's medical license number?
Dr. Brown holds Maryland license D-18658.
Which hospitals is Dr. Cary Douglas Brown affiliated with?
Dr. Brown is affiliated with Adventist HealthCare Shady Grove Medical Center.
What medical group is Dr. Cary Douglas Brown part of?
Dr. Brown is linked to Adventist Medical Group. Dmand AI links Dr. Brown to 1 more medical group.
Does Dr. Cary Douglas Brown accept Medicare?
Yes. CMS data shows Dr. Brown billed Medicare for 1,664 services in 2024, and Dr. Brown accepts Medicare assignment.
How many Medicare patients does Dr. Cary Douglas Brown see?
CMS counts 254 Medicare patients who saw Dr. Brown in 2024, with an average age of 79.
What services does Dr. Cary Douglas Brown bill to Medicare?
In 2024, Dr. Brown's most billed Medicare services were office visit, established patient (99212), surgery: skin and soft tissue (11042) and office visit, established patient (99213).
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Where did Dr. Cary Douglas Brown go to medical school?
Dr. Brown graduated from University of Maryland School of Medicine in 1972.
What drugs does Dr. Cary Douglas Brown prescribe most?
In 2024 Medicare Part D data, Dr. Brown's most prescribed drugs by claims were Nystatin.
Has Dr. Cary Douglas Brown received payments from drug or device companies?
CMS Open Payments shows $623 in general payments to Dr. Brown from 4 companies from 2024 to 2025. The largest total came from Integra LifeSciences Corporation.
How long has Dr. Cary Douglas Brown been practicing?
Dr. Brown graduated from medical school in 1972, 54 years ago.
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