Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Katherine Martinson, DNP, APRN

Advanced Practice Midwife in Chicago, IL · enumerated 2024.

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

National Provider Identifier

1548023997

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Katherine Martinson

Credential DNP, APRN

Sex Female

Practice address 845 S Damen Ave, Chicago, IL, 60612

Phone (847) 989-9847

Enumeration date Jan 30, 2024

Last updated in NPPES Jan 30, 2024

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 041.341794 (IL) Secondary

163WL0100X Lactation Consultant (Registered Nurse) Nursing Service Providers · License L-28328 (IL) Secondary

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License 209.028093 Primary

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

Is NPI 1548023997 active?

Yes, as of the latest NPPES snapshot, NPI 1548023997 is active (record last updated 2024-01-30).

How do I verify Katherine Martinson's NPI record?

Cross-check NPI 1548023997 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-30.