Dr. Marcos A. Ayala Rivera, MD
- Medicare services, 2017
- 42
- Part D claims, 2024
- 9,460
- Industry payments
- $1,448
- Affiliated sites
- 1
- State license
- 1
- Practice address
- 167 Calle Ramos Antonini E, Mayaguez, PR 00680-5039
- Practice phone
- Call (787) 833-5235
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ayala Preventive Medicine PSC
Physician office · Mayaguez, Puerto Rico
Find Dr. Ayala Rivera'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. Marcos A. Ayala Rivera is a general practice physician in San Juan, Puerto Rico
Dr. Ayala Rivera practices at Ayala Preventive Medicine PSC in Mayaguez, Puerto Rico.
Dr. Ayala Rivera's NPI, 1194772640, was assigned on May 30, 2006. Dr. Ayala Rivera holds Puerto Rico license 6806.
- NPI
- 1194772640NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345309316
- NPI enumeration date
- May 30, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (787) 833-5235
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marcos A. Ayala Rivera practices in Mayaguez and San Juan
Dr. Ayala Rivera's primary practice is Ayala Preventive Medicine PSC, at 167 Calle Ramos Antonini E, Mayaguez, PR 00680-5039. The practice phone is (787) 833-5235. The NPI Registry lists Dr. Ayala Rivera's practice address as 1760 Cll Loiza, San Juan, PR 00911.
- Ayala Preventive Medicine PSCPrimary167 Calle Ramos Antonini E, Mayaguez, PR 00680-5039Phone(787) 833-5235
- NPI Registry address1760 Cll Loiza, San Juan, PR 00911 · San Juan CountyPhone(787) 833-5235
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Marcos A. Ayala Rivera is affiliated with 1 site of care
Dr. Ayala Rivera's primary practice is Ayala Preventive Medicine PSC in Mayaguez, Puerto Rico.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Marcos A. Ayala Rivera's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ayala Rivera practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ayala Preventive Medicine PSC | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marcos A. Ayala Rivera is one of 2,604 general practice physicians in Puerto Rico
General practice is Dr. Ayala Rivera's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Ayala Rivera is licensed in Puerto Rico.
Specialties and state licenses
- General practice, Puerto RicoPrimary
General practice physicians near Dr. Ayala Rivera
Counts of general practice physicians 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. Marcos A. Ayala Rivera billed Medicare for 42 services in 2017
CMS data shows 42 Medicare services from Dr. Ayala Rivera across 1 procedure code in 2017, all of them office visits. Medicare paid $1,446 for them. Every service was in an office.
Dr. Ayala Rivera's Medicare services by type, 2016 to 2017
- 2016
- 2017
- Office and hospital visits
- 2016: 552017: 4224%
Dr. Ayala Rivera compared with the Puerto Rico median for general practice physicians, 2017
- Dr. Ayala Rivera
- Puerto Rico median
- Medicare services
- 42vs 3424% above
- Part D claims
- 9,015vs 73512.3 times
Medians across 3,001 general practice physicians in Puerto Rico with Dmand AI profiles that report each measure.
Dr. Ayala Rivera's most billed Medicare procedure codes, 2017
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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Marcos A. Ayala Rivera wrote 9,460 Medicare Part D claims in 2024
In 2024, Dr. Ayala Rivera wrote 9,460 Medicare Part D claims for 302 patients. 87% of them were for generic drugs. CMS names the drug for 9,015 of them, across 92 drugs with 11 or more claims each, at $229,316 in total drug cost. In 2023, CMS named 8,378 claims across 87 drugs.
Dr. Ayala Rivera's Part D claims by kind of drug, 2024
- Generic8,272 claims87%
- Brand-name1,032 claims11%
- Other156 claims2%
Dr. Ayala Rivera'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 Dr. Ayala Rivera's Part D claims, 2024
- Antibiotics1%72 of 9,460 claims
- Antipsychotics, patients 65 and over0%16 of 9,460 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: 8,3782024: 9,0158%
Drugs named by CMS: 92 in 2024, 87 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. Marcos A. Ayala Rivera takes part in Medicare
Dr. Ayala Rivera 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. Marcos A. Ayala Rivera received $1,448 in industry payments from 2016 to 2025
CMS Open Payments shows 25 general payments to Dr. Ayala Rivera from 10 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $382.
General payments to Dr. Ayala Rivera by program year, 2016 to 2025
Companies that paid Dr. Ayala Rivera 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. Marcos A. Ayala Rivera'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 Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand 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 |
| 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. Marcos A. Ayala Rivera
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. Marcos A. Ayala Rivera's NPI number?
Dr. Marcos A. Ayala Rivera's NPI number is 1194772640. It was assigned on May 30, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Marcos A. Ayala Rivera?
Dr. Marcos A. Ayala Rivera is a general practice physician in San Juan, Puerto Rico. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Marcos A. Ayala Rivera practice?
Dr. Ayala Rivera practices at 167 Calle Ramos Antonini E, Mayaguez, PR 00680-5039. Dr. Ayala Rivera also practices at 1760 Cll Loiza, San Juan, PR 00911. Dr. Ayala Rivera's primary practice is Ayala Preventive Medicine PSC in Mayaguez, Puerto Rico.
What is Dr. Marcos A. Ayala Rivera's office phone number?
The practice phone on file for Dr. Ayala Rivera is (787) 833-5235.
What is Dr. Marcos A. Ayala Rivera's medical license number?
Dr. Ayala Rivera holds Puerto Rico license 6806.
Does Dr. Marcos A. Ayala Rivera accept Medicare?
Yes. CMS data shows Dr. Ayala Rivera billed Medicare for 42 services in 2017, and Dr. Ayala Rivera accepts Medicare assignment.
What services does Dr. Marcos A. Ayala Rivera bill to Medicare?
In 2017, Dr. Ayala Rivera's most billed Medicare services were office visit, established patient (99213).
What drugs does Dr. Marcos A. Ayala Rivera prescribe most?
In 2024 Medicare Part D data, Dr. Ayala Rivera's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Gabapentin.
Has Dr. Marcos A. Ayala Rivera received payments from drug or device companies?
CMS Open Payments shows $1,448 in general payments to Dr. Ayala Rivera from 10 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Marcos A. Ayala Rivera been practicing?
Dr. Ayala Rivera's NPI was assigned in 2006.
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