MRS. KATRINA MARIE GESSI FNP-BC
NPI 1144100736
Nurse Practitioner in Saint Louis, MO

Active since September 04, 2025PECOS EnrolledAccepts Medicare Assignment
1201 S GRAND BLVD, SAINT LOUIS, MO 63104(314) 257-8000 Get Directions Write a Review

NPPES record last updated: September 4, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mrs. Katrina Marie Gessi Fnp-bc NPPES

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

MRS. KATRINA MARIE GESSI FNP-BC (NPI 1144100736) is an individual nurse practitioner in Saint Louis, Missouri, licensed in Missouri (2025038274) and active in the NPI registry since September 2025. She is enrolled in Medicare PECOS, is affiliated with Ssm Health Saint Louis University Hospital, and is a graduate of Other (2025).

NPPES Registry Identity

NPI1144100736
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMRS. KATRINA MARIE GESSICredential: FNP-BC
Location Address1201 S GRAND BLVDSaint Louis, MO 63104-1016
Mailing Address1619 Thunderbird LnBelleville, IL 62221-6717
Sole ProprietorYes
Medical School CMSOtherGraduated 2025
Enumeration DateSeptember 4, 2025
NPPES CertifiedSeptember 4, 2025
NPI 1144100736 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License Licensed in MO · 2025038274
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
1201 S GRAND BLVD, Saint Louis, MO 63104

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Mrs. Katrina Marie Gessi Fnp-bc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9234634536
PECOS Enrollment IDI20250926001602
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ssm Health Saint Louis University Hospital

Acute Care Hospitals · Saint Louis, MO
1/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number260105
Location3635 Vista AveSaint Louis, MO 63110 · St. Louis City County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Nurse Practitioner (Acute Care)
1201 S GRAND BLVD
SAINT LOUIS, MO 63104
Student in an Organized Health Care Education/Training Program
1201 S GRAND BLVD
SAINT LOUIS, MO 63104
Hospitalist
1201 S GRAND BLVD
SAINT LOUIS, MO 63104
Student in an Organized Health Care Education/Training Program
1201 S GRAND BLVD
SAINT LOUIS, MO 63104
Physician Assistant
1201 S GRAND BLVD
SAINT LOUIS, MO 63104
Student in an Organized Health Care Education/Training Program
1201 S GRAND BLVD
SAINT LOUIS, MO 63104
Pediatrics
1201 S GRAND BLVD
SAINT LOUIS, MO 63104
Hospitalist
1201 S GRAND BLVD
SAINT LOUIS, MO 63104

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 Katrina Gessi's NPI number?

The NPI number for Katrina Gessi is 1144100736. It was assigned to this individual provider in the NPPES registry on September 4, 2025.

Where is Katrina Gessi located?

Katrina Gessi practices at 1201 S Grand Blvd, Saint Louis, MO 63104. The listed phone number is (314) 257-8000.

What is Katrina Gessi's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Katrina Gessi enrolled in Medicare?

Yes. Katrina Gessi is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Katrina Gessi accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 3 other insurers list Katrina Gessi as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Katrina Gessi affiliated with any hospitals?

According to CMS data, Katrina Gessi is affiliated with Ssm Health Saint Louis University Hospital.

When was this NPI record last updated?

The NPPES record for Katrina Gessi was last updated on September 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.