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MS. HAYLEY C OTT FNP
NPI 1346920006
Nurse Practitioner - Family in Saint Louis, MO

Active since July 18, 2023PECOS EnrolledAccepts Medicare Assignment
1020 N MASON RD, DIV IM INFECTIOUS DISEASES, STE 200, SAINT LOUIS, MO 63141(314) 747-1206(314) 362-9851 Get Directions Write a Review

NPPES record last updated: April 17, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 9, 2024, Jul 18, 2023 (2 updates tracked since 2023).

About Ms. Hayley C Ott Fnp NPPES

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

MS. HAYLEY C OTT FNP (NPI 1346920006) is an individual family provider in Saint Louis, Missouri, licensed in Missouri (2023014676) and active in the NPI registry since July 2023. She is enrolled in Medicare PECOS and is a graduate of University Of Missouri, Kansas City, School Of Medicine (2022).

NPPES Registry Identity

NPI1346920006
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMS. HAYLEY C OTTCredential: FNP
Location Address1020 N MASON RD, DIV IM INFECTIOUS DISEASES, STE 200Saint Louis, MO 63141-6666
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 747-1206 · Fax (314) 362-9851
Phone(314) 747-1206
Fax(314) 362-9851
Sole ProprietorNo
Medical School CMSUniversity Of Missouri, Kansas City, School Of MedicineGraduated 2022
Enumeration DateJuly 18, 2023
Last NPPES UpdateApril 17, 20252 updates tracked since enumeration
NPPES CertifiedJuly 18, 2023
✔ NPI 1346920006 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in MO · 2023014676
1020 N MASON RD, Saint Louis, MO 63141
Open in Google Maps ↗

Other Identifiers 1

Medicaid420141551MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cox HealthPlans.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

Ms. Hayley C Ott Fnp 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 ID244775799
PECOS Enrollment IDI20240709003982
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.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
33 services25 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
20 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63141 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.

HEART CARE INSTITUTE AFFILIATED SERVICES, LLC
Clinic/Center (Rehabilitation, Cardiac Facilities)
1020 N MASON RD, SUITE 200
CREVE COEUR, MO 63141
St. Louis County (314) 996-3140
HEART CARE INSTITUTE AFFILIATED SERVICES, LLC
Clinic/Center (Rehabilitation, Cardiac Facilities)
1020 N MASON RD, SUITE 200
CREVE COEUR, MO 63141
St. Louis County (314) 996-3140
HEART CARE INSTITUTE LLC
Clinic/Center (Rehabilitation, Cardiac Facilities)
1020 N MASON RD, SUITE 130
CREVE COEUR, MO 63141
St. Louis County (314) 996-3110
DR. LYNNE M SEACORD MD
Internal Medicine (Cardiovascular Disease)
1020 N MASON RD
SAINT LOUIS, MO 63141
St. Louis County (314) 362-1291
DR. MARK R MILUNSKI MD
Internal Medicine (Cardiovascular Disease)
1020 N MASON RD, DIV IM CARDIOLOGY, STE 100
SAINT LOUIS, MO 63141
St. Louis County (314) 362-1291
MRS. GAIL CHRISTINE CROFTON R.D., L.D., CDE
Dietitian, Registered
1020 N MASON RD, PROFESSIONAL BUILDING 3, SUITE 200
CREVE COEUR, MO 63141
St. Louis County (314) 996-8039
MRS. DAWN M SANDER ANP
Nurse Practitioner (Adult Health)
1020 N MASON RD, DIV SURG VASCULAR, STE 225
SAINT LOUIS, MO 63141
St. Louis County (314) 273-7373
DR. KORY JOSHUA LAVINE MD
Internal Medicine (Advanced Heart Failure and Transplant Cardiology)
1020 N MASON RD, DIV IM CARDIOLOGY, STE 100
SAINT LOUIS, MO 63141
St. Louis County (314) 362-1291

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 Hayley Ott's NPI number?

The NPI number for Hayley Ott is 1346920006. It was assigned to this individual provider in the NPPES registry on July 18, 2023.

Where is Hayley Ott located?

Hayley Ott practices at 1020 N Mason Rd Div Im Infectious Diseases, Ste 200, Saint Louis, MO 63141. The listed phone number is (314) 747-1206.

What is Hayley Ott's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Hayley Ott enrolled in Medicare?

Yes. Hayley Ott 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 Hayley Ott accept?

Health plans from Cox HealthPlans list Hayley Ott 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.

When was this NPI record last updated?

The NPPES record for Hayley Ott was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.