Mamie Annexy Lopez, MD
Gastroenterology Physician · Manati, PR
Mamie Annexy Lopez, MD is a gastroenterology physician with a practice address in Manati, Puerto Rico, and NPI 1497894505, issued on Feb 5, 2007. Check the license (Puerto Rico 9979, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mamie Annexy Lopez
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 9979 PR
Self-reported in NPPES; status is on the state search - Practice location
- A4 Calle Marginal, Manati, PR 00674
- Phone
- (787) 884-5368
- Enumerated
- Feb 5, 2007
- Record last updated
- Jan 25, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (787) 884-0881
- Medicare enrollment
- Enrolled (PECOS I20120904000269); accepts Medicare assignment
- Medical or professional school
- University Of Puerto Rico School Of Medicine, 1986
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 203 in Puerto Rico → Look up another NPI →
Also registered at A4 Calle Marginal
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Wanda Ortiz Muniz, MDGastroenterology Physician1245379304
Verify Mamie Annexy Lopez 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 9979Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% more Medicare Part D claims than the average gastroenterology physician in 2024
1,363 Medicare Part D claims for 348 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Pantoprazole Sodium237 claims
- Famotidine190 claims
- Esomeprazole Magnesium100 claims
- Midazolam Hcl84 claims
- Meperidine Hcl77 claims
- Omeprazole76 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.
Mamie Annexy Lopez among 203 gastroenterology physician records in Puerto Rico
Mamie Annexy Lopez, MD is one of 203 gastroenterology physician records with a practice address in Puerto Rico. 92% 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 49% of them.
- NPI issued2007 · 49% of these records are older, 31% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated1986 · median 2000 among the 165 with a school on file
- Record last updated2018 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 gastroenterology physician records list a practice address in Manati
They are 15 of the 729 NPPES records with a practice address in Manati, and 203 gastroenterology physician records in Puerto Rico.
All 203 in Puerto Rico → Every provider in Manati → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Nestor Aponte-Reyes, MDManati, PR 006741003816802
- Betty Chinea Cruz, MDManati, PR 006741073566402
- Aileen Guzman Morales, MDManati, PR 006741083660807
- Juan Marques-Lespier, MDManati, PR 006741407142227
- Adriana Marzan Loyola, MDManati, PR 006741235591579
- Jorge Melendez Hernandez, M.D.Manati, PR 006741841491321
- Wilson Ortiz Cotti, M.D.Manati, PR 006741295952984
- Wanda Ortiz Muniz, MDManati, PR 006741245379304
Common questions
What is Mamie Annexy Lopez, MD's NPI number?
Mamie Annexy Lopez, MD's National Provider Identifier (NPI) is 1497894505, issued on Feb 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mamie Annexy Lopez, MD located?
The NPPES record lists a practice address at A4 Calle Marginal, Manati, PR, 00674. Phone: (787) 884-5368. Providers update this record themselves, so call before visiting.
How can I verify Mamie Annexy Lopez, MD's license?
NPPES lists Puerto Rico license number 9979, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Mamie Annexy Lopez, MD prescribe under Medicare Part D?
In 2024, Mamie Annexy Lopez, MD had 1,363 Medicare Part D claims for 348 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.