Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Roger L Miller, M.D.
Surgery Physician in Rockford, IL · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1912903899
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Registry record
Entity type Individual (Type 1)
Name Dr. Roger L Miller
Credential M.D.
Sex Male
Practice address 2300 N Rockton Ave, Ste 304, Rockford, IL, 61103
Phone (815) 964-3333
Fax (815) 864-3331
Enumeration date Jun 24, 2005
Last updated in NPPES Dec 17, 2007
Taxonomy & licenses
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 |
|---|---|---|---|
| 194361 | Other | IL | PERSONAL CARE |
| 036062833 2 | Medicaid | IL | - |
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.
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 Roger Miller?
Roger Miller is registered in NPPES with the primary taxonomy of Surgery 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 → Affiliated Surgeons of Rockford LLC Surgery Physician · Rockford, IL NPI 1851394696 Samuel Appavu Surgery Physician · Rockford, IL NPI 1346243169 Cynthia Bear Surgical Physician Assistant · Rockford, IL NPI 1548266620 Paul Klazura Vascular Surgery Physician · Rockford, IL NPI 1407852551 Joseph Whiteley Plastic and Reconstructive Surgery Physician · Rockford, IL NPI 1043216112 Donald Mccanse Surgery Physician · Rockford, IL NPI 1568468619 Jeffrey Schauer Surgery Physician · Rockford, IL NPI 1427054592 Paul Reith Endocrinology, Diabetes & Metabolism Physician · Rockford, IL NPI 1235129230
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-17.