MS. HALEY MICHELLE CLARK FNP
NPI 1295512366
Nurse Practitioner - Family in Saint Louis, MO
About Ms. Haley Michelle Clark Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. HALEY MICHELLE CLARK FNP (NPI 1295512366) is an individual family provider in Saint Louis, Missouri, licensed in Missouri (2023035149) and active in the NPI registry since September 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ms. Haley Michelle Clark 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.
Medicare Billing Reassignment
Medicare enrollment records show Haley Clark reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 1,133 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
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 Haley Clark's NPI number?
The NPI number for Haley Clark is 1295512366. It was assigned to this individual provider in the NPPES registry on September 12, 2023.
Where is Haley Clark located?
Haley Clark practices at 4921 Parkview Pl Div Im Endocrinology, Ste 8B, Saint Louis, MO 63110. The listed phone number is (314) 362-3500.
What is Haley Clark's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Haley Clark enrolled in Medicare?
Yes. Haley Clark 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.
Which organization bills Medicare for Haley Clark's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Haley Clark reassigns Medicare benefits to Washington University (Saint Louis, MO). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Haley Clark's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Haley Clark accept?
Health plans from Oscar Insurance Company list Haley Clark 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 Haley Clark was last updated on June 9, 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.
# Ms. Haley Michelle Clark, FNP · NPI 1295512366
Family physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since September 12, 2023.
## Identity
- **NPI:** 1295512366 (Entity type: Individual)
- **Enumerated:** September 12, 2023
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 2023035149 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 4921 PARKVIEW PL, DIV IM ENDOCRINOLOGY, STE 8B, Saint Louis, MO 63110-1032
- **Phone:** (314) 362-3500 · **Fax:** (314) 230-1119
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Washington University (NPI 1992746903, Saint Louis, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** June 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1295512366) · Data from the CMS NPPES public registry.