Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Rahmawati Sih, MD

Geriatric Medicine (Internal Medicine) Physician in Burr Ridge, IL · enumerated 2006.

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

National Provider Identifier

1346290707

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Registry record

Entity type Individual (Type 1)

Name Dr. Rahmawati Sih

Credential MD

Sex Female

Practice address 6101 S County Line Rd, Burr Ridge, IL, 60527

Phone (630) 686-9000

Fax (844) 235-2578

Enumeration date May 10, 2006

Last updated in NPPES Aug 22, 2023

Taxonomy & licenses

207RG0300X Geriatric Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 36095119 (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
F100323989	Other	IL	GROUP MEDICARE PTAN

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 Rahmawati Sih?

Rahmawati Sih is registered in NPPES with the primary taxonomy of Geriatric Medicine (Internal Medicine) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-22.