MS. MOLLY MARIE HULSEN ACNP
NPI 1023529468
Nurse Practitioner - Gerontology in Saint Louis, MO
About Ms. Molly Marie Hulsen Acnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. MOLLY MARIE HULSEN ACNP (NPI 1023529468) is an individual gerontology provider in Saint Louis, Missouri, licensed in Missouri (2017014481) and active in the NPI registry since October 2017. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital South, and is a graduate of Ohio State University College Of Medicine (2016).
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. Molly Marie Hulsen Acnp 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 Reassignments
3Medicare enrollment records show Molly Hulsen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 120 clinicians in this Medicare group
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 1,133 clinicians in this Medicare group
Olathe, KS 66061
- Reassigned Medicare billing, Kansas enrollment
- 273 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 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Hospital South
Acute Care Hospitals · Saint Louis, MOMissouri Baptist Medical Center
Acute Care Hospitals · Town And Country, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63131 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 63131
SAINT LOUIS, MO 63131
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 Molly Hulsen's NPI number?
The NPI number for Molly Hulsen is 1023529468. It was assigned to this individual provider in the NPPES registry on October 12, 2017.
Where is Molly Hulsen located?
Molly Hulsen practices at 3015 N Ballas Rd Div Im Cardiology, Ste 225, Saint Louis, MO 63131. The listed phone number is (314) 996-3530.
What is Molly Hulsen's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.
Is Molly Hulsen enrolled in Medicare?
Yes. Molly Hulsen 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 organizations bill Medicare for Molly Hulsen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Molly Hulsen reassigns Medicare benefits to 3 organizations: Mercy Clinic Heart And Vascular, LLC (Saint Louis, MO), Washington University (Saint Louis, MO) and Olathe Health Physicians, Inc. (Olathe, KS). Each 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 Molly Hulsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Molly Hulsen accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 3 other insurers list Molly Hulsen 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 Molly Hulsen affiliated with any hospitals?
According to CMS data, Molly Hulsen is affiliated with Mercy Hospital South and Missouri Baptist Medical Center.
When was this NPI record last updated?
The NPPES record for Molly Hulsen was last updated on May 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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. Molly Marie Hulsen, ACNP · NPI 1023529468
Gerontology physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since October 12, 2017.
## Identity
- **NPI:** 1023529468 (Entity type: Individual)
- **Enumerated:** October 12, 2017
- **Primary specialty:** Nurse Practitioner - Gerontology · taxonomy 363LG0600X
- **State license:** 2017014481 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 3015 N BALLAS RD, DIV IM CARDIOLOGY, STE 225, Saint Louis, MO 63131-2329
- **Phone:** (314) 996-3530 · **Fax:** (314) 996-3535
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Mercy Clinic Heart And Vascular, LLC (NPI 1932176401, Saint Louis, MO); Washington University (NPI 1992746903, Saint Louis, MO); Olathe Health Physicians, Inc. (NPI 1326548710, Olathe, KS) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Ohio State University College Of Medicine, class of 2016
## Record status
- **NPPES last updated:** May 12, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1023529468) · Data from the CMS NPPES public registry.