Registry data as of Aug 27, 2026

Ralph Diaz-Colon, MD

Neonatal-Perinatal Medicine Physician · Manati, PR

Ralph Diaz-Colon, MD is a neonatal-perinatal medicine physician with a practice address in Manati, Puerto Rico, and NPI 1093805244, issued on Oct 16, 2006. Check the license (Puerto Rico 8000, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1093805244
Name
Ralph Diaz-Colon
Credential
MD
Primary taxonomy
Neonatal-Perinatal Medicine Physician 2080N0001X
License number
8000 PR
Self-reported in NPPES; status is on the state search
Practice location
Doctors' Center Hospital, Manati, PR 00674
Phone
(787) 621-3322
Enumerated
Oct 16, 2006
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 Ralph Diaz-Colon 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 8000
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

72% fewer Medicare Part D claims than the average neonatal-perinatal medicine physician in 2024

19 Medicare Part D claims, against an average of 68 among the 157 providers of this specialty who prescribed in Part D.

  1. Ralph Diaz-Colon19
  2. Specialty average68

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.

Neonatal-Perinatal Medicine Physician providers in Puerto Rico

There are 37 neonatal-perinatal medicine physician records in Puerto Rico.

Other neonatal-perinatal medicine physician records in Puerto Rico

  1. Rosa Bonilla, M.D.San Juan, PR1679532410
  2. Kary Bouet-Rivera, M.D.San Juan, PR1437358397
  3. Wilmarie Bruckman Blanco, M.D.San Juan, PR1326299389
  4. Isabel Cabrera, MDPonce, PR1508827742
  5. Maria Casado, M.D.Santurce, PR1689633398
  6. Deborah Cintron, MDPonce, PR1720241771
  7. Carmen CollazoPonce, PR1093775181
  8. Abymael Frontanes, M.D.San Juan, PR1528262631
  9. Rebeca Fuentes Rodriguez, M.D.San Juan, PR1942439658
  10. Ines Garcia, M.D.San Juan, PR1245215532

Common questions

What is Ralph Diaz-Colon, MD's NPI number?

Ralph Diaz-Colon, MD's National Provider Identifier (NPI) is 1093805244, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ralph Diaz-Colon, MD located?

The NPPES record lists a practice address at Doctors' Center Hospital, Manati, PR, 00674. Phone: (787) 621-3322. Providers update this record themselves, so call before visiting.

How can I verify Ralph Diaz-Colon, MD's license?

NPPES lists Puerto Rico license number 8000, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Ralph Diaz-Colon, MD prescribe under Medicare Part D?

In 2024, Ralph Diaz-Colon, MD had 19 Medicare Part D claims; the average among neonatal-perinatal medicine physician prescribers was 68. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.