Dr. Luis O Ramirez Ferrer Sr., MD
Dr. Luis O Ramirez Ferrer Sr. is a Surgery Physician provider (Surgery) practicing in Mayaguez, PR, registered in the NPPES registry with NPI 1427116797 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1427116797 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Luis O Ramirez Ferrer Sr. |
| Credential | MD |
| Sex | Male |
| Practice address | AVE HOSTOS # 410, BO SABALO CARR # 2, Mayaguez, PR, 00682 |
| Phone | 7878061833 |
| Fax | 7878348383 |
| Enumeration date | 2006-12-05 |
| Last updated in NPPES | 2014-04-22 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208600000X | Surgery Physician | Primary | 4610 | PR |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 06530 | Other | — | BLUE CARD |
| 06530 | Other | — | CRUZ ARU |
| 660574003 | Other | — | MEDICAL CARD REFORMA |
| PE2111 | Other | — | PAN AMERICAN LIFE |
| 660574003 | Other | — | COSVIMED |
| 20895 | Other | — | AMPR |
| 3134 | Other | — | AMERICAN HEALTH |
| 5165 | Other | — | INTERNATIONAL MEDICAL CAR |
| 660574003 | Other | — | CIGNA |
| 660574003 | Other | — | TRICARE |
| 660574003 | Other | — | GHI |
| 660574003 | Other | — | MCS CLASSICARE |
| 660374003 | Other | — | SERI BELLA LDH |
| 660574003 | Other | — | HUMANA MILITARY |
| 346771 | Other | — | MEDICAL CARD SYSTEM |
| 660574003 | Other | — | AETNA |
| 660574003 | Other | — | FIRST PLUS MEDICARE |
| 660574003 | Other | — | MMM HEALTHCARE |
Copy-ready billing details
Provider: Luis Ramirez Ferrer, MD NPI: 1427116797 Taxonomy: 208600000X (Surgery Physician) Address: AVE HOSTOS # 410, BO SABALO CARR # 2, Mayaguez, PR, 00682
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1912197971 | Luz Lassalle-Nieves | Individual | Occupational Therapist | Mayaguez, PR |
| 1467695908 | Western Doctors Connection | Organization | Endoscopy Clinic/Center | Mayaguez, PR |
| 1508009838 | Western Doctor Connection | Organization | Endoscopy Clinic/Center | Mayaguez, PR |
| 1174882211 | Clinica Venosa Del Oeste, Inc | Organization | Multi-Specialty Clinic/Center | Mayaguez, PR |
| 1740619956 | Xiomara Cruz Bracero | Individual | Internal Medicine Physician | Mayaguez, PR |
| 1568849859 | Freddy Madera | Individual | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | Mayaguez, PR |
| 1801255864 | Xcruz MD Psc | Organization | Primary Care Clinic/Center | Mayaguez, PR |
| 1265883177 | Robert Rodriguez | Individual | Internal Medicine Physician | Mayaguez, PR |
Verify this record
Cross-check NPI 1427116797 against the authoritative CMS record: view Dr. Luis O Ramirez Ferrer Sr. on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2014-04-22.