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

Mrs. Donna L Timmer, RN,BSN,IBCLC

Lactation Consultant (Registered Nurse) in Sugar Land, TX · enumerated 2014.

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

National Provider Identifier

1326463100

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Registry record

Entity type Individual (Type 1)

Name Mrs. Donna L Timmer

Credential RN,BSN,IBCLC

Sex Female

Practice address Sugar Land, TX, 77479

Phone (832) 451-2687

Enumeration date Mar 3, 2014

Last updated in NPPES Mar 3, 2014

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

Taxonomy & licenses

163WL0100X Lactation Consultant (Registered Nurse) Nursing Service Providers · License 698545 (TX) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

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

How do I verify Donna Timmer's NPI record?

Cross-check NPI 1326463100 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1326463100 active?

Yes, as of the latest NPPES snapshot, NPI 1326463100 is active (record last updated 2014-03-03).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-03.