NPPES file of Aug 9, 2026

Serafin Castillo Ilagan, M.D.

Surgery Physician · Oak Brook, IL

Serafin Castillo Ilagan, M.D. is a surgery physician with a practice address in Oak Brook, Illinois, and NPI 1043504343, issued on Jun 3, 2011. Check the license (Illinois 036041529, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1043504343
Name
Serafin Castillo Ilagan
Credential
M.D.
Primary taxonomy
Surgery Physician 208600000X
License number
036041529 IL
Self-reported in NPPES; status is on the state search
Practice location
40 N Tower RD, Oak Brook, IL 60523
Phone
(702) 242-8477
Enumerated
Jun 3, 2011
Record last updated
Jun 3, 2011 (not updated in 15 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 40 N Tower RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Alicia Muran, DDSDentist1821251711
  2. Ranna Tabrizi, M.D.Surgery Physician1316184617

Verify Serafin Castillo Ilagan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036041529
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

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Surgery Physician providers in Illinois

There are 1,520 surgery physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other surgery physician records in Illinois

  1. Douglas Aach, MDShiloh, IL1508817040
  2. Andrew Abadier, DOChicago, IL1124657473
  3. Shabirhusain Abadin, M.D.Chicago, IL1467712596
  4. Iftikharul Abbasy, MDOak Brook, IL1104814755
  5. Mahmoud Abd-El-Hafez, MDSpringfield, IL1710516943
  6. Samir Abdo, M.D.Eldorado, IL1578612982
  7. Chandrakumaran Abivarma, M.D.Park Ridge, IL1467135137
  8. Gerard Abood, M.DMaywood, IL1629237227
  9. Mohammad Abou El-Ezz, MDChicago, IL1790536746
  10. Gifty Abraham, M.D.Maywood, IL1881039279

Common questions

What is Serafin Castillo Ilagan, M.D.'s NPI number?

Serafin Castillo Ilagan, M.D.'s National Provider Identifier (NPI) is 1043504343, issued on Jun 3, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Serafin Castillo Ilagan, M.D. located?

The NPPES record lists a practice address at 40 N Tower RD, Oak Brook, IL, 60523. Phone: (702) 242-8477. Providers update this record themselves, so call before visiting.

How can I verify Serafin Castillo Ilagan, M.D.'s license?

NPPES lists Illinois license number 036041529, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.