Marcus Rene Ayala, PA-C
- Medicare services, 2024
- 370
- Medicare patients, 2024
- 146
- Part D claims, 2024
- 1,018
- Hospital affiliations
- 1
- Industry payments
- $125
- Practice address
- 8431 Fredericksburg Rd, San Antonio, TX 78229
- Practice phone
- Call (210) 450-9000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UT Health San Antonio
San Antonio, Texas
Find Marcus Ayala'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.
Marcus Rene Ayala is a physician assistant in San Antonio, Texas
Marcus Ayala practices at UT Health San Antonio in San Antonio, Texas.
Marcus Ayala's NPI, 1134875669, was assigned on February 23, 2022. Marcus Ayala holds Texas license PA15396.
- NPI
- 1134875669NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9133595952
- NPI enumeration date
- February 23, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (210) 450-9000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Marcus Rene Ayala practices at UT Health San Antonio in San Antonio, Texas
Marcus Ayala's primary practice is UT Health San Antonio, at 8431 Fredericksburg Rd, San Antonio, TX 78229 in Bexar County. The practice phone is (210) 450-9000.
- UT Health San Antonio8431 Fredericksburg Rd, San Antonio, TX 78229 · Bexar CountyPhone(210) 450-9000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Marcus Rene Ayala is affiliated with 3 sites of care and 1 medical group
Marcus Ayala's primary practice is UT Health San Antonio in San Antonio, Texas. Marcus Ayala is also affiliated with UT Health San Antonio Multispecialty and Research Hospital. The medical group on file is UT Health Physicians. Dmand AI also links Marcus Ayala to 1 more group practice or clinic, 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 Marcus Rene Ayala's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marcus Ayala practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UT Health San Antonio | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Marcus Rene Ayala is one of 8,663 physician assistants in Texas
Physician assistant is Marcus Ayala's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dmand AI has Marcus Ayala's licenses on file in 2 states: Texas and Massachusetts.
Specialties and state licenses
- Physician assistant, TexasPrimary
- Massachusetts license
Clinical focus
Dmand AI lists fibromyalgia and chronic pain, lower back pain and rash among the conditions Marcus Ayala treats.
Physician assistants near Marcus Ayala
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
Marcus Rene Ayala billed Medicare for 370 services in 2024
CMS data shows 370 Medicare services from Marcus Ayala across 6 procedure codes in 2024, for 146 Medicare patients. Medicare paid $14,382 for them. Every service was in an office.
Marcus Ayala's Medicare services by type, 2024
- Office and hospital visits185
- Other services158
- Lab and pathology27
Marcus Ayala compared with the Texas median for physician assistants, 2024
- Marcus Ayala
- Texas median
- Medicare services
- 370vs 22962% above
- Medicare patients
- 146vs 9947% above
- Part D claims
- 615vs 2962.1 times
Medians across 5,541 physician assistants in Texas with Dmand AI profiles that report each measure.
Marcus Ayala'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.
Need commercial claims for Marcus Ayala?
Medicare shows one payer. Book a meeting to get commercial claims data for Marcus Ayala and other physician assistants in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Marcus Rene Ayala treated 146 Medicare patients in 2024, average age 73
CMS counts 146 Medicare patients who saw Marcus Ayala in 2024. The largest group is 75 to 84, with 64 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.03, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Marcus Ayala's median patient age at 49, with 59% women.
Marcus Ayala's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Marcus Ayala's Medicare patients by sex, 2024
- Women9062%
- Men5638%
Chronic conditions among Marcus Ayala's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
- Diabetes38%
- Anxiety25%
- Ischemic heart disease25%
- Chronic kidney disease23%
- Mood disorders16%
Share of Medicare patients with each condition. A patient can have several.
Marcus Ayala's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women59%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Marcus Rene Ayala wrote 1,018 Medicare Part D claims in 2024
In 2024, Marcus Ayala wrote 1,018 Medicare Part D claims for 229 patients. 85% of them were for generic drugs. CMS names the drug for 615 of them, across 31 drugs with 11 or more claims each, at $52,083 in total drug cost.
Marcus Ayala's Part D claims by kind of drug, 2024
- Generic861 claims85%
- Brand-name and other157 claims15%
Marcus Ayala'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.
Drug classes CMS tracks in Marcus Ayala's Part D claims, 2024
- Antibiotics6%63 of 1,018 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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 Marcus Rene Ayala takes part in Medicare
Marcus Ayala 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Marcus Rene Ayala received $125 in industry payments in 2025
CMS Open Payments shows 1 general payment to Marcus Ayala from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $125.
Companies that paid Marcus Ayala the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Marcus Rene Ayala'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 Marcus Rene Ayala
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marcus Rene Ayala's NPI number?
Marcus Rene Ayala's NPI number is 1134875669. It was assigned on February 23, 2022, and it is active in the NPI Registry.
What does Marcus Rene Ayala specialize in?
Marcus Rene Ayala is a physician assistant in San Antonio, Texas. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Marcus Rene Ayala practice?
Marcus Ayala practices at 8431 Fredericksburg Rd, San Antonio, TX 78229. Marcus Ayala's primary practice is UT Health San Antonio in San Antonio, Texas. Dmand AI also links Marcus Ayala to 1 group practice or clinic.
What is Marcus Rene Ayala's office phone number?
The practice phone on file for Marcus Ayala is (210) 450-9000.
What is Marcus Rene Ayala's medical license number?
Marcus Ayala holds Texas license PA15396, one of the licenses on file in 2 states.
Which states has Marcus Rene Ayala been licensed in?
Dmand AI has state licenses on file for Marcus Ayala in Texas and Massachusetts.
Which hospitals is Marcus Rene Ayala affiliated with?
Marcus Ayala is affiliated with UT Health San Antonio Multispecialty and Research Hospital.
What medical group is Marcus Rene Ayala part of?
Marcus Ayala is linked to UT Health Physicians.
Does Marcus Rene Ayala accept Medicare?
Yes. CMS data shows Marcus Ayala billed Medicare for 370 services in 2024, and Marcus Ayala accepts Medicare assignment.
How many Medicare patients does Marcus Rene Ayala see?
CMS counts 146 Medicare patients who saw Marcus Ayala in 2024, with an average age of 73.
Show 4 more questionsShow fewer questions
What services does Marcus Rene Ayala bill to Medicare?
In 2024, Marcus Ayala's most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and office visit, established patient (99213).
What drugs does Marcus Rene Ayala prescribe most?
In 2024 Medicare Part D data, Marcus Ayala's most prescribed drugs by claims were Gabapentin, Atorvastatin Calcium and Albuterol Sulfate Hfa.
Has Marcus Rene Ayala received payments from drug or device companies?
CMS Open Payments shows $125 in general payments to Marcus Ayala from 1 company from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Marcus Rene Ayala been practicing?
Marcus Ayala graduated from medical school in 2021, 5 years ago.
Selling to physician assistant practices?
See physician assistants in Texas by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card