Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Samuel Anthony Grampsas, MD

Urology Physician in Springfield, IL · enumerated 2006 · practices at Siu Physicians & Surgeons, Inc.

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

National Provider Identifier

1386618833

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Registry record

Entity type Individual (Type 1)

Name Dr. Samuel Anthony Grampsas

Credential MD

Sex Male

Practice address 747 N Rutledge St Fl 5, Springfield, IL, 62702

Phone (217) 545-8000

Fax (217) 545-7305

Enumeration date Feb 13, 2006

Last updated in NPPES Jul 29, 2024

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 036104697 (IL) Primary

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

Other identifiers

Identifier	Type	State	Issuer
036104697	Medicaid	IL	-
364121826 07	Other	IL	JOHN DEERE
340019436	Other	IL	RAILROAD MEDICARE
070519	Other	IL	HEALTH ALLIANCE

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.

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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 Samuel Grampsas?

Samuel Grampsas 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

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Loralee Donnelly Family Nurse Practitioner · Springfield, IL NPI 1174075147 Farhan Maqbool Surgical Critical Care Physician · Springfield, IL NPI 1730609363 Ryan Buettner Urology Physician · Springfield, IL NPI 1467953208 Christina High Nurse Practitioner · Springfield, IL NPI 1730664053 Siu Physicians & Surgeons, Inc Durable Medical Equipment & Medical Supplies · Springfield, IL NPI 1164055976 Kaitlin Davis Urology Physician · Springfield, IL NPI 1598346116 Emily Hillman Urology Physician · Springfield, IL NPI 1558943639 Jay Benoit Family Nurse Practitioner · Springfield, IL NPI 1003579335

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-29.