Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cynthia Macdonald, DNP

Family Nurse Practitioner in Crystal Lake, IL · enumerated 2006.

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

National Provider Identifier

1609988187

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Registry record

Entity type Individual (Type 1)

Name Cynthia Macdonald

Credential DNP

Sex Female

Practice address 1095 Pingree Rd, Suite 108, Crystal Lake, IL, 60014

Phone (847) 658-2400

Fax (847) 658-7755

Enumeration date Aug 31, 2006

Last updated in NPPES May 20, 2021

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 277000733 (IL) Primary

DNP · Doctor of Nursing Practice: A clinical doctorate for advanced practice nurses. About the DNP credential

Other identifiers

Identifier	Type	State	Issuer
277000733	Other	IL	FULL PRACTICE AUTHORITY

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 NPI 1609988187 active?

Yes, as of the latest NPPES snapshot, NPI 1609988187 is active (record last updated 2021-05-20).

How do I verify Cynthia Macdonald's NPI record?

Cross-check NPI 1609988187 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-20.