Samuel Guillermo Castro-Rivera, MD
General Practice Physician · Bayamon, PR
Samuel Guillermo Castro-Rivera, MD is a general practice physician with a practice address in Bayamon, Puerto Rico, and NPI 1780646786, issued on Apr 5, 2006. Check the license (Puerto Rico 16024, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Samuel Guillermo Castro-Rivera
- Credential
- MD
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 16024 PR
Self-reported in NPPES; status is on the state search - Practice location
- 34-1 Calle 43, Bayamon, PR 00957
- Phone
- (787) 797-5365
- Enumerated
- Apr 5, 2006
- Record last updated
- Mar 18, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20060302000072); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 4,170 in Puerto Rico → Look up another NPI →
Verify Samuel Guillermo Castro-Rivera 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 16024Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.1 times the Medicare Part D claims of the average general practice physician in 2024
9,501 Medicare Part D claims for 570 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 51 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,003 claims
- Levothyroxine Sodium462 claims
- Amlodipine Besylate450 claims
- Losartan Potassium280 claims
- Metformin Hcl266 claims
- Rosuvastatin Calcium266 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.
Industry payments in 2024: $119.11
1 payment: food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 4,259 providers of this specialty with any payment received $1,273.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Samuel Guillermo Castro-Rivera among 4,170 general practice physician records in Puerto Rico
Samuel Guillermo Castro-Rivera, MD is one of 4,170 general practice physician records with a practice address in Puerto Rico. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 65% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 29% of these records are
- Graduated2004 · median 2004 among the 1,228 with a school on file
- Record last updated2015 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
273 general practice physician records list a practice address in Bayamon
They are 273 of the 2,958 NPPES records with a practice address in Bayamon, and 4,170 general practice physician records in Puerto Rico.
All 4,170 in Puerto Rico → Every provider in Bayamon → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Maria CameroBayamon, PR 009571912995705
- Glamadys Carrer, M.D.Bayamon, PR 009571265452445
- Lizamar Cruz, M.D.Bayamon, PR 009571952355703
- Jose Feijoo-Gonzalez, M.D.Bayamon, PR 009571770656993
- Leonor Garcia Escanelle, MDBayamon, PR 009571942225701
- Jose Jimenez Rivera, MDBayamon, PR 009571568443919
- Gilda Perez Moreno, MDBayamon, PR 009571073575833
- Greida Quintero Paz, MDBayamon, PR 009571619967072
Common questions
What is Samuel Guillermo Castro-Rivera, MD's NPI number?
Samuel Guillermo Castro-Rivera, MD's National Provider Identifier (NPI) is 1780646786, issued on Apr 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Samuel Guillermo Castro-Rivera, MD located?
The NPPES record lists a practice address at 34-1 Calle 43, Bayamon, PR, 00957. Phone: (787) 797-5365. Providers update this record themselves, so call before visiting.
How can I verify Samuel Guillermo Castro-Rivera, MD's license?
NPPES lists Puerto Rico license number 16024, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Samuel Guillermo Castro-Rivera, MD prescribe under Medicare Part D?
In 2024, Samuel Guillermo Castro-Rivera, MD had 9,501 Medicare Part D claims for 570 beneficiaries; the average among general practice physician prescribers was 3,030. 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.