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ANN ELLEN SULLIVAN
NPI 1720412455
Counselor - Professional in Wentzville, MO

Active since August 29, 2013PECOS EnrolledAccepts Medicare Assignment
237 CREEKSIDE OFFICE DR, WENTZVILLE, MO 63385(636) 202-1412(636) 201-3379 Get Directions Write a Review

NPPES record last updated: August 20, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 20, 2026, Nov 14, 2024 (2 updates tracked since 2024).

About Ann Ellen Sullivan NPPES

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

ANN ELLEN SULLIVAN (NPI 1720412455) is an individual professional provider in Wentzville, Missouri, licensed in Missouri (2019046362) and active in the NPI registry since August 2013. She is enrolled in Medicare PECOS, maintains a secondary practice location in Tulsa, and is a graduate of Other (2015).

NPPES Registry Identity

NPI1720412455
Entity TypeIndividualFemale
Primary Taxonomy101YP2500X
Provider Legal NameANN ELLEN SULLIVAN
Location Address237 CREEKSIDE OFFICE DRWentzville, MO 63385-3290
Mailing Address2 Macon CtLake St Louis, MO 63367-1226 · (903) 357-9642
Phone(636) 202-1412
Fax(636) 201-3379
Sole ProprietorYes
Medical School CMSOtherGraduated 2015
Enumeration DateAugust 29, 2013
Last NPPES UpdateAugust 20, 20262 updates tracked since enumeration
NPPES CertifiedAugust 20, 2026
✔ NPI 1720412455 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
Licenses✔ Licensed in MO · 2019046362✔ Licensed in OK · 6286
237 CREEKSIDE OFFICE DR, Wentzville, MO 63385
Open in Google Maps ↗

Secondary Practice Location 1

Location 17424 S Yale Ave Ste 100Tulsa, OK 74136-7151 · Phone (918) 760-5243

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter Health and more.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

Ann Ellen Sullivan 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 ID7517315054
PECOS Enrollment IDI20231122001793
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.

Medicare Billing Reassignments

4

Medicare enrollment records show Ann Sullivan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

A W Stevenson LLC
22 mi
Professional
400 N 5TH ST STE 201
Saint Charles, MO 63301
  • Reassigned Medicare billing, Missouri enrollment
  • 36 clinicians in this Medicare group
NPI 1396469060 (314) 437-7591
Alliance Mental Health - Colorado LLC
256 mi
Mental Health
630 E STEVE OWENS BLVD STE 2
Miami, OK 74354
  • Reassigned Medicare billing, Oklahoma and Colorado enrollments
  • Also billed through NPI 1770247702 (Colorado)
  • 24 clinicians in this Medicare group
NPI 1205580040 (918) 608-0380
Alliance Mental Health, LLC
311 mi
Mental Health (Including Community Mental Health Center)
1402 N FLORENCE AVE STE B
Claremore, OK 74017
  • Reassigned Medicare billing, Oklahoma enrollment
  • 49 clinicians in this Medicare group
NPI 1053602649 (918) 608-0380
Alliance Mental Health Community Partnership
311 mi
Mental Health (Including Community Mental Health Center)
123 W BLUE STARR DR
Claremore, OK 74017
  • Reassigned Medicare billing, Oklahoma enrollment
  • 24 clinicians in this Medicare group
NPI 1679145486 (918) 608-0380

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 8

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

RABIA SHOAIB MED, LPC
Counselor (Mental Health)
237 CREEKSIDE OFFICE DR
WENTZVILLE, MO 63385
St. Charles County (636) 202-1412
OLIVIA BEISHIR
Counselor (Mental Health)
237 CREEKSIDE OFFICE DR
WENTZVILLE, MO 63385
St. Charles County (636) 202-1412
KARLEE ELAINE JASINSKI M.ED., PLPC
Counselor (Mental Health)
237 CREEKSIDE OFFICE DR
WENTZVILLE, MO 63385
St. Charles County (636) 202-1412
CHELSEA L WIRE MA, LPC
Counselor (Professional)
237 CREEKSIDE OFFICE DR
WENTZVILLE, MO 63385
St. Charles County (636) 202-1412
MS. JANIE RENEE WILLIAMS EDS, PLPC
Counselor (Mental Health)
237 CREEKSIDE OFFICE DR
WENTZVILLE, MO 63385
St. Charles County (636) 202-1412
DR. VIDYA VIJAYAN LMSW, PHD
Social Worker
237 CREEKSIDE OFFICE DR
WENTZVILLE, MO 63385
St. Charles County (636) 202-1412
CARMEN KINNEY
Counselor (Mental Health)
237 CREEKSIDE OFFICE DR
WENTZVILLE, MO 63385
St. Charles County (636) 202-1412
GRACE PEACOCK LMSW
Social Worker (Clinical)
237 CREEKSIDE OFFICE DR
WENTZVILLE, MO 63385
St. Charles County (636) 202-1412

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 Ann Sullivan's NPI number?

The NPI number for Ann Sullivan is 1720412455. It was assigned to this individual provider in the NPPES registry on August 29, 2013.

Where is Ann Sullivan located?

Ann Sullivan practices at 237 Creekside Office Dr, Wentzville, MO 63385. The listed phone number is (636) 202-1412.

What is Ann Sullivan's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Is Ann Sullivan enrolled in Medicare?

Yes. Ann Sullivan 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 Ann Sullivan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ann Sullivan reassigns Medicare benefits to 4 organizations: A W Stevenson LLC (Saint Charles, MO), Alliance Mental Health - Colorado LLC (Miami, OK), Alliance Mental Health, LLC (Claremore, OK) and Alliance Mental Health Community Partnership (Claremore, OK). 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 Ann Sullivan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ann Sullivan 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 7 other insurers list Ann Sullivan 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 Ann Sullivan was last updated on August 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.