Janet M. Colon-Castellano
Endocrinology, Diabetes & Metabolism Physician · Arecibo, PR
Janet M. Colon-Castellano is an endocrinology, diabetes & metabolism physician with a practice address in Arecibo, Puerto Rico, and NPI 1275995573, issued on Mar 25, 2016. Check the license (Puerto Rico 22071, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Janet M. Colon-Castellano
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 22071 PR
Self-reported in NPPES; status is on the state search - Practice location
- Carr. 129 KM 1.0 Ave San Luis, Arecibo, PR 00613
- Phone
- (787) 650-7272
- Enumerated
- Mar 25, 2016
- Record last updated
- Oct 19, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 144 in Puerto Rico → Look up another NPI →
Verify Janet M. Colon-Castellano 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 22071Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
60 Medicare Part D claims, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.
Most prescribed
- Synthroid11 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.
Janet M. Colon-Castellano among 144 endocrinology, diabetes & metabolism physician records in Puerto Rico
Janet M. Colon-Castellano is one of 144 endocrinology, diabetes & metabolism physician records with a practice address in Puerto Rico. 97% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 75% of them.
- NPI issued2016 · 75% of these records are older, 16% newer
- In a Medicare fileYes · 97% of these records are
- In the CMS Doctors and Clinicians fileNo · 83% of these records are
- Record last updated2021 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Puerto Rico
There are 144 endocrinology, diabetes & metabolism physician records in Puerto Rico.
All 144 in Puerto Rico → Every provider in Arecibo → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Myrna Lopez, M.D.Arecibo, PR 006121194814640
- Maria Marrero Mendez, M.D.Arecibo, PR 006121659758324
- Jinetsy Rivera-OrtizArecibo, PR 006121548657935
- Osvaldo Cardona, M.D.Aguadilla, PR 006031467454280
- Yaniris Garcia Cruz, M.D.Cabo Rojo, PR 006231639527336
- Carmen Gonzalez Munoz, M.D.Aguadilla, PR 006031821153305
- Alfred Mair, MDAguadilla, PR 006031699841346
- Samayra Miranda Rodriguez, M. D.Dorado, PR 006461427289594
Common questions
What is Janet M. Colon-Castellano's NPI number?
Janet M. Colon-Castellano's National Provider Identifier (NPI) is 1275995573, issued on Mar 25, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Janet M. Colon-Castellano located?
The NPPES record lists a practice address at Carr. 129 KM 1.0 Ave San Luis, Arecibo, PR, 00613. Phone: (787) 650-7272. Providers update this record themselves, so call before visiting.
How can I verify Janet M. Colon-Castellano's license?
NPPES lists Puerto Rico license number 22071, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Janet M. Colon-Castellano prescribe under Medicare Part D?
In 2024, Janet M. Colon-Castellano had 60 Medicare Part D claims; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.