Giovanni C. Casillas, M.D.
Otology & Neurotology Physician · Bayamon, PR
Giovanni C. Casillas, M.D. is an otology & neurotology physician with a practice address in Bayamon, Puerto Rico, and NPI 1265455216, issued on Jul 25, 2006. Check the license (Puerto Rico 15272, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Giovanni C. Casillas
- Credential
- M.D.
- Primary taxonomy
- Otology & Neurotology Physician 207YX0901X
- License number
- 15272 PR
Self-reported in NPPES; status is on the state search - Practice location
- Calle B, Esquina J # 16, Bayamon, PR 00959
- Phone
- (787) 780-5130
- Enumerated
- Jul 25, 2006
- Record last updated
- Oct 29, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (787) 200-4898
- Medicare enrollment
- Enrolled (PECOS I20080904000049); accepts Medicare assignment
- Medical or professional school
- University Of Puerto Rico School Of Medicine, 2006
- Entity
- Type 1 · individual
Verify Giovanni C. Casillas 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 15272Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average otology & neurotology physician in 2024
821 Medicare Part D claims for 373 beneficiaries, against an average of 409 among the 340 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.
Most prescribed
- Fluticasone Propionate164 claims
- Fluocinolone Acetonide Oil155 claims
- Ofloxacin103 claims
- Mometasone Furoate56 claims
- Ciprofloxacin-Dexamethasone50 claims
- Azelastine Hcl44 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.
Bills Medicare through one group practice
- Physiotherapy Rehabilitation Services IncBayamon, PR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Otology & Neurotology Physician providers in Puerto Rico
There are 3 otology & neurotology physician records in Puerto Rico.
Other otology & neurotology physician records in Puerto Rico
- Miguel Lasalle Lopez, MDMayaguez, PR1699810473
- Vicente Lopez-Hidalgo, MDSan Juan, PR1477594489
Common questions
What is Giovanni C. Casillas, M.D.'s NPI number?
Giovanni C. Casillas, M.D.'s National Provider Identifier (NPI) is 1265455216, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Giovanni C. Casillas, M.D. located?
The NPPES record lists a practice address at Calle B, Esquina J # 16, Bayamon, PR, 00959. Phone: (787) 780-5130. Providers update this record themselves, so call before visiting.
How can I verify Giovanni C. Casillas, M.D.'s license?
NPPES lists Puerto Rico license number 15272, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Giovanni C. Casillas, M.D. prescribe under Medicare Part D?
In 2024, Giovanni C. Casillas, M.D. had 821 Medicare Part D claims for 373 beneficiaries; the average among otology & neurotology physician prescribers was 409. 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.