Monica Santiago Casiano, M.D.
Hematology & Oncology Physician · Yauco Puerto Rico, PR
Monica Santiago Casiano, M.D. is a hematology & oncology physician with a practice address in Yauco Puerto Rico, Puerto Rico, and NPI 1396920518, issued on Jan 7, 2008. Check the license (Puerto Rico 17172, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Monica Santiago Casiano
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 17172 PR
Self-reported in NPPES; status is on the state search - Practice location
- Centro Profesional Del Sur, Yauco Puerto Rico, PR 00698
- Phone
- (787) 957-3111
- Enumerated
- Jan 7, 2008
- Record last updated
- Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150325000147); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 134 in Puerto Rico → Look up another NPI →
Verify Monica Santiago Casiano 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 17172Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
262 Medicare Part D claims for 34 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 54% of claims.
Most prescribed
- Aromasin40 claims
- Revlimid37 claims
- Arimidex31 claims
- Pantoprazole Sodium29 claims
- Prednisone16 claims
- Anastrozole14 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: $1,385.51
60 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
Monica Santiago Casiano among 134 hematology & oncology physician records in Puerto Rico
Monica Santiago Casiano, 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
- Graduated2004 · median 2001 among the 98 with a school on file
- Record last updated2021 · 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 → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Amarilys Mangual, M.D.Yauco, PR 006981437263936
- Caroline Rivera Olmo, M.D.Vega Baja, PR 006931033305123
- Carlos Martinez Crespi, MDAibonito, PR 007051407368210
- Arnaldo Rojas Figueroa, MDAibonito, PR 007051669900650
- Ricardo Quintero-Herencia, M.D.Mayaguez, PR 006811073511432
- Sifredo AcaronMayaguez, PR 006801659481323
- Antonio Aponte Gracia, M.DMayaguez, PR 006801902968209
- Erick Cruz, M.D.Mayaguez, PR 006801518121821
Common questions
What is Monica Santiago Casiano, M.D.'s NPI number?
Monica Santiago Casiano, M.D.'s National Provider Identifier (NPI) is 1396920518, issued on Jan 7, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Monica Santiago Casiano, M.D. located?
The NPPES record lists a practice address at Centro Profesional Del Sur, Yauco Puerto Rico, PR, 00698. Phone: (787) 957-3111. Providers update this record themselves, so call before visiting.
How can I verify Monica Santiago Casiano, M.D.'s license?
NPPES lists Puerto Rico license number 17172, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Monica Santiago Casiano, M.D. prescribe under Medicare Part D?
In 2024, Monica Santiago Casiano, M.D. had 262 Medicare Part D claims for 34 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.