Stephen Benson Macenas

  • Round Rock, TX
  • Physician assistant
NPI1871133538
Part D claims, 2024
490
Hospital affiliations
1
Industry payments
$623
Medical groups
2
State licenses
3
Practice address
300 University Blvd, Round Rock, TX 78664
Practice phone
Call (512) 509-0401
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

See all 3 affiliations

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Stephen Benson Macenas is a physician assistant in Round Rock, Texas

Stephen Macenas practices at Baylor Scott & White Medical Center - Round Rock in Round Rock, Texas, part of Baylor Scott & White Health.

Stephen Macenas' NPI, 1871133538, was assigned on January 10, 2020. Stephen Macenas holds Illinois license 085007500.

NPI and contact details
NPI enumeration date
January 10, 2020
NPI status
Active
Practice phone
(512) 509-0401
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
33
Medical school graduation
2019

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Stephen Benson Macenas practices at Baylor Scott & White Medical Center - Round Rock in Round Rock, Texas

Stephen Macenas' primary practice is Baylor Scott & White Medical Center - Round Rock, at 300 University Blvd, Round Rock, TX 78664 in Williamson County. The practice phone is (512) 509-0401.

Source: Dmand AI Affiliation Data

Stephen Benson Macenas is affiliated with 1 site of care and 2 medical groups

Stephen Macenas' primary practice is Baylor Scott & White Medical Center - Round Rock in Round Rock, Texas, part of Baylor Scott & White Health. The medical group on file is Samaritan Clinic. Dmand AI also links Stephen Macenas to 1 more medical group, named with a free account.

See all 3 affiliations for Stephen Macenas

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Stephen Benson Macenas' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Stephen Macenas practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Baylor Scott & White Medical Center - Round RockAvailable with a free account
+1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Stephen Benson Macenas is one of 8,663 physician assistants in Texas

Physician assistant is Stephen Macenas' primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dmand AI has Stephen Macenas' licenses on file in 3 states: Illinois, California and Washington.

Specialties and state licenses

  • Physician assistant, IllinoisPrimaryLicense 085007500 · taxonomy 363A00000X
  • California licenseLicense 61168
  • Washington licenseLicense PA61396344

Physician assistants near Stephen Macenas

Counts of physician assistants 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

Stephen Benson Macenas' patients have a median age of 58

Across all payers, Dmand AI patient panel data puts Stephen Macenas' median patient age at 58, with 18% women.

Stephen Macenas' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 58

Patient panel by sex, all payers

  • Women18%
  • Men81%

Source: Dmand AI Patient Panel Data

Stephen Benson Macenas wrote 490 Medicare Part D claims in 2024

In 2024, Stephen Macenas wrote 490 Medicare Part D claims for 186 patients. 90% of them were for generic drugs.

Part D claims, 2024490
Part D patients186

Stephen Macenas' Part D claims by kind of drug, 2024

  • Generic443 claims90%
  • Brand-name and other47 claims10%

Drug classes CMS tracks in Stephen Macenas' Part D claims, 2024

  • Opioids3%15 of 490 claims
  • Antibiotics28%138 of 490 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Stephen Benson Macenas received $623 in industry payments in 2025

CMS Open Payments shows 18 general payments to Stephen Macenas from 11 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $223.

Companies that paid Stephen Macenas the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Stephen Macenas

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Stephen Benson Macenas's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Stephen Benson Macenas

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Stephen Benson Macenas' NPI number?

Stephen Benson Macenas' NPI number is 1871133538. It was assigned on January 10, 2020, and it is active in the NPI Registry.

What does Stephen Benson Macenas specialize in?

Stephen Benson Macenas is a physician assistant in Round Rock, Texas. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Stephen Benson Macenas practice?

Stephen Macenas practices at 300 University Blvd, Round Rock, TX 78664. Stephen Macenas' primary practice is Baylor Scott & White Medical Center - Round Rock in Round Rock, Texas, part of Baylor Scott & White Health. Dmand AI also links Stephen Macenas to 1 medical group.

What is Stephen Benson Macenas' office phone number?

The practice phone on file for Stephen Macenas is (512) 509-0401.

What is Stephen Benson Macenas' medical license number?

Stephen Macenas holds Illinois license 085007500, one of the licenses on file in 3 states.

Which states has Stephen Benson Macenas been licensed in?

Dmand AI has state licenses on file for Stephen Macenas in Illinois, California and Washington.

Which hospitals is Stephen Benson Macenas affiliated with?

Stephen Macenas practices at Baylor Scott & White Medical Center - Round Rock in Round Rock, Texas.

What medical group is Stephen Benson Macenas part of?

Stephen Macenas is linked to Samaritan Clinic. Dmand AI links Stephen Macenas to 1 more medical group.

Has Stephen Benson Macenas received payments from drug or device companies?

CMS Open Payments shows $623 in general payments to Stephen Macenas from 11 companies from 2025 to 2025. The largest total came from Novo Nordisk Inc.

How long has Stephen Benson Macenas been practicing?

Stephen Macenas graduated from medical school in 2019, 7 years ago.

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