Issa Mahmud, MD
General Practice Physician · Vega Baja, PR
Issa Mahmud, MD is a general practice physician with a practice address in Vega Baja, Puerto Rico, and NPI 1972625580, issued on Apr 4, 2007. Check the license (Puerto Rico 15573, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Issa Mahmud
- Credential
- MD
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 15573 PR
Self-reported in NPPES; status is on the state search - Practice location
- Hospital Wilma N Vazquez, Vega Baja, PR 00693
- Phone
- (787) 858-1580
- Enumerated
- Apr 4, 2007
- Record last updated
- May 1, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (787) 807-2930
- Medicare enrollment
- Enrolled (PECOS I20130506000345); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 4,170 in Puerto Rico → Look up another NPI →
Also registered at Hospital Wilma N Vazquez
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hiram Rivera Montes, MDRheumatology Physician1316966005
Verify Issa Mahmud 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 15573Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average general practice physician in 2024
728 Medicare Part D claims for 516 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. 50 claims were for opioids.
Most prescribed
- Nabumetone86 claims
- Famotidine55 claims
- Montelukast Sodium54 claims
- Clindamycin Hcl48 claims
- Tramadol Hcl42 claims
- Gabapentin39 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.
Bills Medicare through one group practice
- Instituto Medico Del Norte IncVega Baja, PR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Issa Mahmud among 4,170 general practice physician records in Puerto Rico
Issa Mahmud, MD is one of 4,170 general practice physician records with a practice address in Puerto Rico. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 35% of them.
- NPI issued2007 · 35% of these records are older, 51% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 29% of these records are
- Graduated1997 · median 2004 among the 1,228 with a school on file
- Record last updated2014 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
51 general practice physician records list a practice address in Vega Baja
They are 51 of the 392 NPPES records with a practice address in Vega Baja, and 4,170 general practice physician records in Puerto Rico.
All 4,170 in Puerto Rico → Every provider in Vega Baja → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Brenda Aguayo Vicente, M.D.Vega Baja, PR 006931326138132
- Maria Dominguez Pascual, MDVega Baja, PR 006931952362345
- Zorelisa Gonzalez Adorno, M.D.Vega Baja, PR 006931871532606
- Rafael Lara-Colores, MDVega Baja, PR 006931841246725
- Zaida Laureano-Rodriguez, M.D.Vega Baja, PR 006931700840808
- Randy Marquez Caban, M.D.Vega Baja, PR 006931275572000
- Nestor Perez, M.D.Vega Baja, PR 006931609951227
- Juan Perez Vazquez, MDVega Baja, PR 006931114090024
Common questions
What is Issa Mahmud, MD's NPI number?
Issa Mahmud, MD's National Provider Identifier (NPI) is 1972625580, issued on Apr 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Issa Mahmud, MD located?
The NPPES record lists a practice address at Hospital Wilma N Vazquez, Vega Baja, PR, 00693. Phone: (787) 858-1580. Providers update this record themselves, so call before visiting.
How can I verify Issa Mahmud, MD's license?
NPPES lists Puerto Rico license number 15573, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Issa Mahmud, MD prescribe under Medicare Part D?
In 2024, Issa Mahmud, MD had 728 Medicare Part D claims for 516 beneficiaries; the average among general practice physician prescribers was 3,030. 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.