Gerald C. Mazo Cruzado, MD
Internal Medicine Physician · Cayey, PR
Gerald C. Mazo Cruzado, MD is an internal medicine physician with a practice address in Cayey, Puerto Rico, and NPI 1407173545, issued on Apr 29, 2010. Check the license (Puerto Rico 19021, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gerald C. Mazo Cruzado
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 19021 PR
Self-reported in NPPES; status is on the state search - Practice location
- Hospital Mendoza Cayey, Cayey, PR 00936
- Phone
- (787) 263-0739
- Enumerated
- Apr 29, 2010
- Record last updated
- Feb 27, 2026
- Medicare enrollment
- Enrolled (PECOS I20190212000447); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,146 in Puerto Rico → Look up another NPI →
Verify Gerald C. Mazo Cruzado in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Puerto Rico board licenses this profession
Search for license 19021Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,808 Medicare Part D claims for 531 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium352 claims
- Sucralfate122 claims
- Azithromycin85 claims
- Isosorbide Mononitrate Er71 claims
- Ciprofloxacin Hcl64 claims
- Methylprednisolone59 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
One hospital affiliation
- Hospital Menonita DE CayeyCayey, PR · Acute Care Hospitals
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Gerald C. Mazo Cruzado among 1,146 internal medicine physician records in Puerto Rico
Gerald C. Mazo Cruzado, MD is one of 1,146 internal medicine physician records with a practice address in Puerto Rico. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 63% of them.
- NPI issued2010 · 63% of these records are older, 36% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2015 · median 1996 among the 595 with a school on file
- Record last updated2026 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 internal medicine physician records list a practice address in Cayey
They are 20 of the 489 NPPES records with a practice address in Cayey, and 1,146 internal medicine physician records in Puerto Rico.
All 1,146 in Puerto Rico → Every provider in Cayey → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- James Abrams, MDSan Juan, PR 009361861721789
- Gustavo Altamar, M.D.Rio Piedras, PR 009361992908461
- Juan Aviles, M.D.Rio Piedras, PR 009361922412972
- Arleen Bigio, M.D.San Juan, PR 009361336108133
- Jaymilitte Bosques-Lorenzo, MDSan Juan, PR 009361922663921
- Nicolas Cabrera, M.D.San Juan, PR 009361932528031
- Vicente Covas, MDSan Juan, PR 009361710444716
- Jeremy Feliciano, M.DSan Juan, PR 009361861982167
Common questions
What is Gerald C. Mazo Cruzado, MD's NPI number?
Gerald C. Mazo Cruzado, MD's National Provider Identifier (NPI) is 1407173545, issued on Apr 29, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Gerald C. Mazo Cruzado, MD located?
The NPPES record lists a practice address at Hospital Mendoza Cayey, Cayey, PR, 00936. Phone: (787) 263-0739. Providers update this record themselves, so call before visiting.
How can I verify Gerald C. Mazo Cruzado, MD's license?
NPPES lists Puerto Rico license number 19021, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Gerald C. Mazo Cruzado, MD prescribe under Medicare Part D?
In 2024, Gerald C. Mazo Cruzado, MD had 1,808 Medicare Part D claims for 531 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.