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

Ms. Karen C O'Day, CNM, CFNP, MBA

Family Nurse Practitioner in Santa Fe, NM · enumerated 2006.

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

National Provider Identifier

1164483962

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Registry record

Entity type Individual (Type 1)

Name Ms. Karen C O'Day

Credential CNM, CFNP, MBA

Sex Female

Practice address Santa Fe, NM, 87505

Phone (505) 780-8301

Fax (505) 780-5418

Enumeration date Mar 31, 2006

Last updated in NPPES Mar 17, 2017

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

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R25968 (NM) Primary

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License 462 (NM) Secondary

CNM · Certified Nurse Midwife: An advanced practice nurse specializing in pregnancy, childbirth, and reproductive care. About the CNM credential

Other identifiers

Identifier	Type	State	Issuer
201032100	Other	NM	PRESBYTERIAN HEALTH/SALUD
000G0919	Medicaid	NM	-
G0889	Medicaid	NM	-
00NM006227	Other	NM	BLUE CROSS BLUE SHIELD
68638	Other	NM	PRESBYTERIAN HEALTH/SALUD
850482276	Other	NM	OTHER INSURANCES

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

What specialty is Karen O'Day?

Karen O'Day is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-17.