Omayra Reyes Santiago, M.D.
Hematology & Oncology Physician · Cayey, PR
Omayra Reyes Santiago, M.D. is a hematology & oncology physician with a practice address in Cayey, Puerto Rico, and NPI 1124287313, issued on Jun 3, 2008. Check the license (Puerto Rico 17646, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Omayra Reyes Santiago
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 17646 PR
Self-reported in NPPES; status is on the state search - Practice location
- Carr 14 KM 71.9, Cayey, PR 00736
- Phone
- (787) 520-7211
- Enumerated
- Jun 3, 2008
- Record last updated
- Jul 10, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (787) 520-7212
- Medicare enrollment
- Enrolled (PECOS I20150629002806); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 134 in Puerto Rico → Look up another NPI →
Verify Omayra Reyes Santiago 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 17646Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,416 Medicare Part D claims for 199 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims. 72 claims were for opioids.
Most prescribed
- Letrozole157 claims
- Anastrozole152 claims
- Sodium Chloride115 claims
- Dexamethasone47 claims
- Hydroxyurea46 claims
- Ondansetron Hcl37 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: $12,633.58
194 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 8,560 providers of this specialty with any payment received $7,481.41 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.
Omayra Reyes Santiago among 134 hematology & oncology physician records in Puerto Rico
Omayra Reyes Santiago, M.D. is one of 134 hematology & oncology physician records with a practice address in Puerto Rico. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 64% of them.
- NPI issued2008 · 64% of these records are older, 28% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2006 · median 2001 among the 98 with a school on file
- Record last updated2018 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Puerto Rico
There are 134 hematology & oncology physician records in Puerto Rico.
All 134 in Puerto Rico → Every provider in Cayey → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Doris Colon, M.D.Cayey, PR 007361477545929
- Alicia Mendez, M.D.Cayey, PR 007361164414686
- Luz Cortes, MDFajardo, PR 007381205897352
- Josselyn Molina Avila, M.D.Fajardo, PR 007381962818872
- Carlos Tejeda, M.D.Fajardo, PR 007381366574725
- Karen Santiago Rios, M.D.Cidra Puerto Rico, PR 007391396846119
- Jose Cangiano, M.D.Ponce, PR 007301114961091
- Amy Cabrera, MDCanovanas, PR 007291831454123
Common questions
What is Omayra Reyes Santiago, M.D.'s NPI number?
Omayra Reyes Santiago, M.D.'s National Provider Identifier (NPI) is 1124287313, issued on Jun 3, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Omayra Reyes Santiago, M.D. located?
The NPPES record lists a practice address at Carr 14 KM 71.9, Cayey, PR, 00736. Phone: (787) 520-7211. Providers update this record themselves, so call before visiting.
How can I verify Omayra Reyes Santiago, M.D.'s license?
NPPES lists Puerto Rico license number 17646, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Omayra Reyes Santiago, M.D. prescribe under Medicare Part D?
In 2024, Omayra Reyes Santiago, M.D. had 1,416 Medicare Part D claims for 199 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.