Coralia Gissel Castillo, MD
Internal Medicine Physician · Berwyn, IL
Coralia Gissel Castillo, MD is an internal medicine physician with a practice address in Berwyn, Illinois, and NPI 1851970628, issued on Apr 7, 2021. Check the license (Illinois 125.077958, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Coralia Gissel Castillo
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 125.077958 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3249 Oak Park Ave, Berwyn, IL 60402
- Phone
- (708) 783-9100
- Enumerated
- Apr 7, 2021
- Record last updated
- May 12, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 3249 Oak Park Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- John Alexis, M.D.Emergency Medicine Physician1689608713
Verify Coralia Gissel Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 125.077958Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
93 Medicare Part D claims for 31 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Atorvastatin Calcium12 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.
Coralia Gissel Castillo among 7,238 internal medicine physician records in Illinois
Coralia Gissel Castillo, MD is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 74% of them.
- NPI issued2021 · 74% of these records are older, 22% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% 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 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
67 internal medicine physician records list a practice address in Berwyn
They are 67 of the 1,031 NPPES records with a practice address in Berwyn, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Berwyn → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ricardo Arze, M.D.Berwyn, IL 604021083741110
- Charles Bareis, MDBerwyn, IL 604021740212646
- Elizabeth Becerra, M.D.Berwyn, IL 604021376560102
- Neal Bente, MDBerwyn, IL 604021861474645
- Olga Garcia, MDBerwyn, IL 604021508899436
- Yili Guo, M.D.Berwyn, IL 604021043278120
- Baudelio Herrada, MDBerwyn, IL 604021366466898
- Mark Hroncich, MDBerwyn, IL 604021265465108
Common questions
What is Coralia Gissel Castillo, MD's NPI number?
Coralia Gissel Castillo, MD's National Provider Identifier (NPI) is 1851970628, issued on Apr 7, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Coralia Gissel Castillo, MD located?
The NPPES record lists a practice address at 3249 Oak Park Ave, Berwyn, IL, 60402. Phone: (708) 783-9100. Providers update this record themselves, so call before visiting.
How can I verify Coralia Gissel Castillo, MD's license?
NPPES lists Illinois license number 125.077958, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Coralia Gissel Castillo, MD prescribe under Medicare Part D?
In 2024, Coralia Gissel Castillo, MD had 93 Medicare Part D claims for 31 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.