NPPES file of Aug 9, 2026

Elsie Marie Diez, MD

Cytopathology Physician · San Juan, PR

Elsie Marie Diez, MD is a cytopathology physician with a practice address in San Juan, Puerto Rico, and NPI 1285659896, issued on Jul 13, 2006. Check the license (Puerto Rico 13217, 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
1285659896
Name
Elsie Marie Diez
Credential
MD
Primary taxonomy
Cytopathology Physician 207ZC0500X
License number
13217 PR
Self-reported in NPPES; status is on the state search
Practice location
Villas Paseo Sol #32,, San Juan, PR 00926
Phone
(787) 293-6141
Enumerated
Jul 13, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(787) 292-3286
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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Verify Elsie Marie Diez 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 13217
    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
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91% fewer Medicare Part D claims than the average cytopathology physician in 2024

20 Medicare Part D claims, against an average of 211 among the 12 providers of this specialty who prescribed in Part D.

  1. Elsie Diez20
  2. Specialty average211

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.

Cytopathology Physician providers in Puerto Rico

There are 3 cytopathology physician records in Puerto Rico.

Other cytopathology physician records in Puerto Rico

  1. Eliud Lopez Velez, M.D.Hato Rey, PR1972640209
  2. Gloria Ramos-Rivera, MDRio Piedras, PR1326484627

Common questions

What is Elsie Marie Diez, MD's NPI number?

Elsie Marie Diez, MD's National Provider Identifier (NPI) is 1285659896, issued on Jul 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Elsie Marie Diez, MD located?

The NPPES record lists a practice address at Villas Paseo Sol #32,, San Juan, PR, 00926. Phone: (787) 293-6141. Providers update this record themselves, so call before visiting.

How can I verify Elsie Marie Diez, MD's license?

NPPES lists Puerto Rico license number 13217, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Elsie Marie Diez, MD prescribe under Medicare Part D?

In 2024, Elsie Marie Diez, MD had 20 Medicare Part D claims; the average among cytopathology physician prescribers was 211. 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.