NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Syed Waseem Haider, M.D.

Internal Medicine Physician in Crystal Lake, IL · enumerated 2006.

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

National Provider Identifier

1912017898

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Registry record

Entity type Individual (Type 1)
Name Dr. Syed Waseem Haider
Credential M.D.
Sex Male
Practice address Crystal Lake, IL, 60012
Phone (815) 455-6000
Fax (815) 356-1104
Enumeration date Aug 30, 2006
Last updated in NPPES May 3, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036100063 (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
036100063 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.

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Frequently asked questions

How do I verify Syed Haider's NPI record?
Cross-check NPI 1912017898 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1912017898 active?
Yes, as of the latest NPPES snapshot, NPI 1912017898 is active (record last updated 2021-05-03).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-03.