Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Darcy Lynn Grostick, O.D.
Optometrist in Austin, TX · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1922012814
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Registry record
Entity type Individual (Type 1)
Name Dr. Darcy Lynn Grostick
Credential O.D.
Sex Female
Practice address 4600 Mueller Blvd, Apt #4029, Austin, TX, 78723
Phone (312) 593-4361
Enumeration date Jul 28, 2006
Last updated in NPPES Jan 28, 2016
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 362492289 | Other | IL | TAX ID |
| 1636706 | Other | IL | BCBS |
| 7235044 | Other | IL | AETNA |
| 211019 | Other | IL | MEDICARE GROUP |
| 210209 | Other | IL | MEDICARE GROUP |
| 046009870 | 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
How do I verify Darcy Grostick's NPI record?
Cross-check NPI 1922012814 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1922012814 active?
Yes, as of the latest NPPES snapshot, NPI 1922012814 is active (record last updated 2016-01-28).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-01-28.