Dr. Luis O. Ramirez Ferrer Sr., MD
- Medicare services, 2019
- 16
- Part D claims, 2024
- 84
- Hospital affiliations
- 1
- Industry payments
- $1,370
- State license
- 1
- Practice address
- Carr 2 Bo Sabalos, Mayaguez, PR 00682
- Practice phone
- Call (787) 652-9200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ramirez Ferrer's professional email, personal email and mobile number
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Dr. Luis O. Ramirez Ferrer Sr. is a general surgeon in Mayaguez, Puerto Rico
Dr. Ramirez Ferrer practices at Mayagüez Medical Center in Mayaguez, Puerto Rico, part of Grupo Hospitalario.
Dr. Ramirez Ferrer's NPI, 1427116797, was assigned on December 5, 2006. Dr. Ramirez Ferrer graduated from University of Puerto Rico School of Medicine in 1973. Dr. Ramirez Ferrer holds Puerto Rico license 4610.
- NPI
- 1427116797NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416096318
- NPI enumeration date
- December 5, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (787) 652-9200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 79
- Medical school graduation
- 1973
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Luis O. Ramirez Ferrer Sr. practices at 2 locations in Mayaguez, Puerto Rico
Dr. Ramirez Ferrer's primary practice is Mayagüez Medical Center, at Carr 2 Bo Sabalos, Mayaguez, PR 00682 in Mayaguez County. The practice phone is (787) 652-9200. Dr. Ramirez Ferrer also practices at Mayaguez Medical Center Dr Ramon Emeterio Betances Inc, 410 Ave Hostos, Mayaguez, PR 00682.
- Mayagüez Medical CenterPrimaryCarr 2 Bo Sabalos, Mayaguez, PR 00682 · Mayaguez CountyPhone(787) 652-9200
- Mayaguez Medical Center Dr Ramon Emeterio Betances Inc410 Ave Hostos, Mayaguez, PR 00682 · Mayaguez CountyPhone(787) 652-9200
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Luis O. Ramirez Ferrer Sr. is affiliated with 2 sites of care
Dr. Ramirez Ferrer's primary practice is Mayagüez Medical Center in Mayaguez, Puerto Rico, part of Grupo Hospitalario. Dmand AI also links Dr. Ramirez Ferrer to 1 physician office, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Luis O. Ramirez Ferrer Sr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ramirez Ferrer practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mayagüez Medical Center | Available with a free account |
| +1 more affiliated site | 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 Grupo Hospitalario and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Luis O. Ramirez Ferrer Sr. is one of 168 general surgeons in Puerto Rico
Surgery is Dr. Ramirez Ferrer's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Ramirez Ferrer is licensed in Puerto Rico.
Specialties and state licenses
- Surgery, Puerto RicoPrimary
General surgeons near Dr. Ramirez Ferrer
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. Luis O. Ramirez Ferrer Sr. billed Medicare for 16 services in 2019
CMS data shows 16 Medicare services from Dr. Ramirez Ferrer across 1 procedure code in 2019, all of them office visits. Medicare paid $768 for them. Every service was in an office.
Dr. Ramirez Ferrer's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 142019: 1614%
Dr. Ramirez Ferrer compared with the Puerto Rico median for general surgeons, 2019
- Dr. Ramirez Ferrer
- Puerto Rico median
- Medicare services
- 16vs 1916% below
- Part D claims
- 31vs 5139% below
Medians across 167 general surgeons in Puerto Rico with Dmand AI profiles that report each measure.
Dr. Ramirez Ferrer's most billed Medicare procedure codes, 2019
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. Luis O. Ramirez Ferrer Sr.'s patients have a median age of 85
Across all payers, Dmand AI patient panel data puts Dr. Ramirez Ferrer's median patient age at 85, with 100% women.
Dr. Ramirez Ferrer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 85
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Luis O. Ramirez Ferrer Sr. wrote 84 Medicare Part D claims in 2024
In 2024, Dr. Ramirez Ferrer wrote 84 Medicare Part D claims for 42 patients. 76% of them were for generic drugs. CMS names the drug for 31 of them, across 2 drugs with 11 or more claims each, at $12,080 in total drug cost. In 2023, CMS named 13 claims across 1 drug.
Dr. Ramirez Ferrer's Part D claims by kind of drug, 2024
- Generic64 claims76%
- Brand-name and other20 claims24%
Dr. Ramirez Ferrer'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. Ramirez Ferrer's Part D claims, 2024
- Opioids14%12 of 84 claims
- Antibiotics31%26 of 84 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: 132024: 31138%
Drugs named by CMS: 2 in 2024, 1 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. Luis O. Ramirez Ferrer Sr. takes part in Medicare
Dr. Ramirez Ferrer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 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. Luis O. Ramirez Ferrer Sr. received $1,370 in industry payments from 2016 to 2024
CMS Open Payments shows 26 general payments to Dr. Ramirez Ferrer from 7 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $735.
General payments to Dr. Ramirez Ferrer by program year, 2016 to 2024
Companies that paid Dr. Ramirez Ferrer the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Luis O. Ramirez Ferrer Sr. graduated from University of Puerto Rico School of Medicine
Dr. Ramirez Ferrer graduated from University of Puerto Rico School of Medicine in 1973.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Luis O. Ramirez Ferrer Sr.'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 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 Data |
| 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. Luis O. Ramirez Ferrer Sr.
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. Luis O. Ramirez Ferrer Sr.'s NPI number?
Dr. Luis O. Ramirez Ferrer Sr.'s NPI number is 1427116797. It was assigned on December 5, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Luis O. Ramirez Ferrer Sr.?
Dr. Luis O. Ramirez Ferrer Sr. is a general surgeon in Mayaguez, Puerto Rico. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Luis O. Ramirez Ferrer Sr. practice?
Dr. Ramirez Ferrer practices at Carr 2 Bo Sabalos, Mayaguez, PR 00682. Dr. Ramirez Ferrer also practices at 410 Ave Hostos, Mayaguez, PR 00682. Dr. Ramirez Ferrer's primary practice is Mayagüez Medical Center in Mayaguez, Puerto Rico, part of Grupo Hospitalario. Dmand AI also links Dr. Ramirez Ferrer to 1 physician office.
What is Dr. Luis O. Ramirez Ferrer Sr.'s office phone number?
The practice phone on file for Dr. Ramirez Ferrer is (787) 652-9200.
What is Dr. Luis O. Ramirez Ferrer Sr.'s medical license number?
Dr. Ramirez Ferrer holds Puerto Rico license 4610.
Which hospitals is Dr. Luis O. Ramirez Ferrer Sr. affiliated with?
Dr. Ramirez Ferrer practices at Mayagüez Medical Center in Mayaguez, Puerto Rico.
Does Dr. Luis O. Ramirez Ferrer Sr. accept Medicare?
Yes. CMS data shows Dr. Ramirez Ferrer billed Medicare for 16 services in 2019, and Dr. Ramirez Ferrer accepts Medicare assignment.
What services does Dr. Luis O. Ramirez Ferrer Sr. bill to Medicare?
In 2019, Dr. Ramirez Ferrer's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Luis O. Ramirez Ferrer Sr. go to medical school?
Dr. Ramirez Ferrer graduated from University of Puerto Rico School of Medicine in 1973.
What drugs does Dr. Luis O. Ramirez Ferrer Sr. prescribe most?
In 2024 Medicare Part D data, Dr. Ramirez Ferrer's most prescribed drugs by claims were Xarelto and Sulfamethoxazole-Trimethoprim.
Has Dr. Luis O. Ramirez Ferrer Sr. received payments from drug or device companies?
CMS Open Payments shows $1,370 in general payments to Dr. Ramirez Ferrer from 7 companies from 2016 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Luis O. Ramirez Ferrer Sr. been practicing?
Dr. Ramirez Ferrer graduated from medical school in 1973, 53 years ago.
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