Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Grace Bayudan Delos Santos, M.D.

Urology Physician in Maywood, IL · enumerated 2009.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1255569323

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Grace Bayudan Delos Santos

Credential M.D.

Sex Female

Practice address 2160 S 1st Ave, Loyola University Medical Center, Bldg 101, Room 1739, Maywood, IL, 60153

Phone (708) 216-9000

Enumeration date Jun 29, 2009

Last updated in NPPES Apr 6, 2021

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 036135784 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Grace Delos Santos?

Grace Delos Santos is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Michael Raffin Audiologist · Maywood, IL NPI 1174525489 Sonya Reschly Audiologist · Maywood, IL NPI 1992700033 Ying Sun Specialist · Maywood, IL NPI 1417954868 Kathleen Schore Specialist · Maywood, IL NPI 1720085103 Hieu Ton-That Surgery Physician · Maywood, IL NPI 1457359259 Curt Pinchuck Psychiatry Physician · Maywood, IL NPI 1275532871 Joan Dimopoulos Emergency Medicine Physician · Maywood, IL NPI 1659371573 Teresa Cappello Orthopaedic Surgery Physician · Maywood, IL NPI 1346240082

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-06.