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OLIVIA CAROL LETTER
NPI 1598583197
Nurse Anesthetist, Certified Registered in Oshkosh, WI

Active since October 01, 2024
800 ALGOMA BLVD, OSHKOSH, WI 54901(920) 424-1077 Get Directions Write a Review

NPPES record last updated: May 26, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: May 26, 2026, Oct 1, 2024 (2 updates tracked since 2024).

About Olivia Carol Letter NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

OLIVIA CAROL LETTER (NPI 1598583197) is an individual nurse anesthetist, certified registered in Oshkosh, Wisconsin, licensed in Wisconsin (161098) and active in the NPI registry since October 2024. She is a graduate of Other (2026).

NPPES Registry Identity

NPI1598583197
Entity TypeIndividualFemale
Primary Taxonomy367500000X
Provider Legal NameOLIVIA CAROL LETTER
Location Address800 ALGOMA BLVDOshkosh, WI 54901-8610
Mailing Address2396 Crown Pointe BlvdSuamico, WI 54173-8083 · (920) 412-0187
Phone(920) 424-1077
Sole ProprietorNo
Medical School CMSOtherGraduated 2026
Enumeration DateOctober 1, 2024
Last NPPES UpdateMay 26, 20262 updates tracked since enumeration
NPPES CertifiedMay 26, 2026
✔ NPI 1598583197 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
License✔ Licensed in WI · 161098
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
800 ALGOMA BLVD, Oshkosh, WI 54901
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Olivia Carol Letter is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3971074725
PECOS Enrollment IDI20260603000957

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BETH LUKE
Registered Nurse
800 ALGOMA BLVD
OSHKOSH, WI 54901
Winnebago County (414) 378-2377
MARIJO EVERS
Nurse Anesthetist, Certified Registered
800 ALGOMA BLVD
OSHKOSH, WI 54901
Winnebago County (920) 424-1234
MICAH GELANI JOHNSON
Student in an Organized Health Care Education/Training Program
800 ALGOMA BLVD
OSHKOSH, WI 54901
Winnebago County (920) 424-1234
NICOLE UELMEN
Student in an Organized Health Care Education/Training Program
800 ALGOMA BLVD
OSHKOSH, WI 54901
Winnebago County (920) 424-1077
MR. WADE CHRISTIAN PEITERSEN LAT
Specialist/Technologist (Athletic Trainer)
800 ALGOMA BLVD, KOLF SPORTS CENTER 169L
OSHKOSH, WI 54901
Winnebago County (920) 424-7138
JOHN J JOHNSEN LAT
Specialist/Technologist (Athletic Trainer)
800 ALGOMA BLVD
OSHKOSH, WI 54901
Winnebago County (920) 424-3225
SAVANNAH FRANCIES
Registered Nurse
800 ALGOMA BLVD
OSHKOSH, WI 54901
Winnebago County (920) 424-1234
SHALYN DANIELLE TREPTOW
Nurse Anesthetist, Certified Registered
800 ALGOMA BLVD
OSHKOSH, WI 54901
Winnebago County (920) 424-1234

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Olivia Letter's NPI number?

The NPI number for Olivia Letter is 1598583197. It was assigned to this individual provider in the NPPES registry on October 1, 2024.

Where is Olivia Letter located?

Olivia Letter practices at 800 Algoma Blvd, Oshkosh, WI 54901. The listed phone number is (920) 424-1077.

What is Olivia Letter's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Olivia Letter enrolled in Medicare?

Yes. Olivia Letter is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Olivia Letter was last updated on May 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.