Dr. Darius Alexander Buzenas, MD
- Medicare services, 2024
- 896
- Medicare patients, 2024
- 207
- Part D claims, 2024
- 230
- Hospital affiliations
- 1
- Industry payments
- $48,678
- Practice address
- 7700 Floyd Curl Dr, San Antonio, TX 78229
- Practice phone
- Call (210) 575-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Methodist Hospital (TX)
San Antonio, Texas
Find Dr. Buzenas' 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. Darius Alexander Buzenas is an internist in San Antonio, Texas
Dr. Buzenas practices at Methodist Hospital (TX) in San Antonio, Texas.
Dr. Buzenas' NPI, 1609019272, was assigned on April 13, 2009. Dr. Buzenas holds Texas license N2426.
- NPI
- 1609019272NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4284820168
- NPI enumeration date
- April 13, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (210) 575-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Darius Alexander Buzenas practices at Methodist Hospital (TX) in San Antonio, Texas
Dr. Buzenas' primary practice is Methodist Hospital (TX), at 7700 Floyd Curl Dr, San Antonio, TX 78229 in Bexar County. The practice phone is (210) 575-4000.
- Methodist Hospital (TX)7700 Floyd Curl Dr, San Antonio, TX 78229 · Bexar CountyPhone(210) 575-4000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Darius Alexander Buzenas is affiliated with 5 sites of care and 4 medical groups
Dr. Buzenas' primary practice is Methodist Hospital (TX) in San Antonio, Texas. Dr. Buzenas is also affiliated with Methodist Hospital. The medical group on file is Lonestar Hospital Medicine Associates, PA. Dmand AI also links Dr. Buzenas to 3 more group practices and clinics and 3 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Darius Alexander Buzenas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Buzenas practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Methodist Hospital (TX) | Available with a free account |
| +4 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Darius Alexander Buzenas is one of 8,437 internists in Texas
Internal medicine is Dr. Buzenas' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Buzenas is licensed in Texas.
Specialties and state licenses
- Internal medicine, TexasPrimary
Internists near Dr. Buzenas
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. Darius Alexander Buzenas billed Medicare for 896 services in 2024
CMS data shows 896 Medicare services from Dr. Buzenas across 4 procedure codes in 2024, for 207 Medicare patients. Medicare paid $78,589 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Buzenas' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1832024: 896390%
Dr. Buzenas compared with the Texas median for internists, 2024
- Dr. Buzenas
- Texas median
- Medicare services
- 896vs 53966% above
- Medicare patients
- 207vs 1909% above
- Part D claims
- 17vs 28994% below
Medians across 7,794 internists in Texas with Dmand AI profiles that report each measure.
Dr. Buzenas' 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. Buzenas and other internists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Darius Alexander Buzenas treated 207 Medicare patients in 2024, average age 75
CMS counts 207 Medicare patients who saw Dr. Buzenas in 2024. The largest group is 65 to 74, with 76 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 2.70, 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. Buzenas' median patient age at 68, with 44% women.
Dr. Buzenas' Medicare patients by age, 2024
Dr. Buzenas' Medicare patients by sex, 2024
- Women10350%
- Men10450%
Chronic conditions among Dr. Buzenas' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease61%
- Chronic kidney disease51%
- Diabetes51%
- Heart failure51%
- Arthritis50%
- Atrial fibrillation42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Buzenas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women44%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Darius Alexander Buzenas wrote 230 Medicare Part D claims in 2024
In 2024, Dr. Buzenas wrote 230 Medicare Part D claims for 110 patients. 87% of them were for generic drugs. CMS names the drug for 17 of them, across 1 drug with 11 or more claims each, at $152 in total drug cost. In 2023, CMS named 1,415 claims across 53 drugs.
Dr. Buzenas' Part D claims by kind of drug, 2024
- Generic201 claims87%
- Brand-name29 claims13%
Dr. Buzenas' 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.
Drug classes CMS tracks in Dr. Buzenas' Part D claims, 2024
- Opioids12%27 of 230 claims
- Antibiotics14%32 of 230 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,4152024: 1799%
Drugs named by CMS: 1 in 2024, 53 in 2023.
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
How Dr. Darius Alexander Buzenas takes part in Medicare
Dr. Buzenas accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Darius Alexander Buzenas received $48,678 in industry payments from 2019 to 2025
CMS Open Payments shows 15 general payments to Dr. Buzenas from 2 drug and device companies from 2019 to 2025. Consulting fees make up the largest share, 100% of the total. CSL Plasma Inc. paid the most, $48,566.
General payments to Dr. Buzenas by program year, 2019 to 2025
General payments to Dr. Buzenas by kind, 2019 to 2025
- Consulting fees$48,566100%
- Food and beverage$1120%
Companies that paid Dr. Buzenas the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Darius Alexander Buzenas'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 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) |
| 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. Darius Alexander Buzenas
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. Darius Alexander Buzenas' NPI number?
Dr. Darius Alexander Buzenas' NPI number is 1609019272. It was assigned on April 13, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Darius Alexander Buzenas?
Dr. Darius Alexander Buzenas is an internist in San Antonio, Texas. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Darius Alexander Buzenas practice?
Dr. Buzenas practices at 7700 Floyd Curl Dr, San Antonio, TX 78229. Dr. Buzenas' primary practice is Methodist Hospital (TX) in San Antonio, Texas. Dmand AI also links Dr. Buzenas to 3 group practices and clinics and 3 medical groups.
What is Dr. Darius Alexander Buzenas' office phone number?
The practice phone on file for Dr. Buzenas is (210) 575-4000.
What is Dr. Darius Alexander Buzenas' medical license number?
Dr. Buzenas holds Texas license N2426.
Which hospitals is Dr. Darius Alexander Buzenas affiliated with?
Dr. Buzenas is affiliated with Methodist Hospital.
What medical group is Dr. Darius Alexander Buzenas part of?
Dr. Buzenas is linked to Lonestar Hospital Medicine Associates, PA. Dmand AI links Dr. Buzenas to 3 more medical groups.
Does Dr. Darius Alexander Buzenas accept Medicare?
Yes. CMS data shows Dr. Buzenas billed Medicare for 896 services in 2024, and Dr. Buzenas accepts Medicare assignment.
How many Medicare patients does Dr. Darius Alexander Buzenas see?
CMS counts 207 Medicare patients who saw Dr. Buzenas in 2024, with an average age of 75.
What services does Dr. Darius Alexander Buzenas bill to Medicare?
In 2024, Dr. Buzenas' most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and hospital inpatient care (99232).
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What drugs does Dr. Darius Alexander Buzenas prescribe most?
In 2024 Medicare Part D data, Dr. Buzenas' most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Darius Alexander Buzenas received payments from drug or device companies?
CMS Open Payments shows $48,678 in general payments to Dr. Buzenas from 2 companies from 2019 to 2025. The largest total came from CSL Plasma Inc.
How long has Dr. Darius Alexander Buzenas been practicing?
Dr. Buzenas graduated from medical school in 2003, 23 years ago.
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