NPPES file of Aug 9, 2026

Sixto R. Aymerich, M.D., J.D.

Specialist · San Juan, PR

Sixto R. Aymerich, M.D., J.D. is a specialist with a practice address in San Juan, Puerto Rico, and NPI 1952518532, issued on May 16, 2007. Check the license (Puerto Rico 3692, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1952518532
Name
Sixto R. Aymerich
Credential
M.D., J.D.
Primary taxonomy
Specialist 174400000X
License number
3692 PR
Self-reported in NPPES; status is on the state search
Practice location
1729 Calle Lilas, San Juan, PR 00927
Phone
(787) 751-9078
Enumerated
May 16, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest specialist records → All 574 in Puerto Rico → Look up another NPI →

Verify Sixto R. Aymerich in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Puerto Rico board licenses this profession
    Search for license 3692    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Puerto Rico license search

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89% fewer Medicare Part D claims than the average specialist in 2024

155 Medicare Part D claims for 12 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.

  1. Sixto Aymerich155
  2. Specialty average1,380

Most prescribed

  1. Atorvastatin Calcium22 claims
  2. Metoprolol Succinate18 claims
  3. Alfuzosin Hcl Er12 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.

Sixto R. Aymerich among 574 specialist records in Puerto Rico

Sixto R. Aymerich, M.D., J.D. is one of 574 specialist records with a practice address in Puerto Rico. 54% 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 63% of them.

  • NPI issued2007 · 63% of these records are older, 10% newer
  • In a Medicare fileYes · 54% of these records are
  • In the CMS Doctors and Clinicians fileNo · 26% of these records are
  • Record last updated2007 · 79% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

162 specialist records list a practice address in San Juan

They are 162 of the 8,960 NPPES records with a practice address in San Juan, and 574 specialist records in Puerto Rico.

All 574 in Puerto Rico → Every provider in San Juan → Specialist nationwide →

The 8 specialist records with the nearest ZIP codes

  1. John Buhler-Laboy, M.D.San Juan, PR 009271215063607
  2. Jessica CaceresSan Juan, PR 009271851210058
  3. Rafael Nogueras-Rodriguez, MDSan Juan, PR 009271396950457
  4. Sylvia Payne, M.D.San Juan, PR 009271356542948
  5. Jesus Rodriguez, M.D.,F.A.C.O.G,F.A.CSan Juan, PR 009271619910122
  6. Maria Rullan, MD, MPHSan Juan, PR 009271063597953
  7. Alfredo Santa Ana Arcaraz, M.D.San Juan, PR 009271871577361
  8. Nydia Aponte, O.T.L.Rio Piedras, PR 009281760692404

Common questions

What is Sixto R. Aymerich, M.D., J.D.'s NPI number?

Sixto R. Aymerich, M.D., J.D.'s National Provider Identifier (NPI) is 1952518532, issued on May 16, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Sixto R. Aymerich, M.D., J.D. located?

The NPPES record lists a practice address at 1729 Calle Lilas, San Juan, PR, 00927. Phone: (787) 751-9078. Providers update this record themselves, so call before visiting.

How can I verify Sixto R. Aymerich, M.D., J.D.'s license?

NPPES lists Puerto Rico license number 3692, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Sixto R. Aymerich, M.D., J.D. prescribe under Medicare Part D?

In 2024, Sixto R. Aymerich, M.D., J.D. had 155 Medicare Part D claims for 12 beneficiaries; the average among specialist prescribers was 1,380. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.