MS. ANISSA FAY WASHINGTON FNP
NPI 1144685272
Nurse Practitioner - Family in Saint Louis, MO

Active since December 16, 2015PECOS EnrolledAccepts Medicare Assignment
11133 DUNN RD, DEPT EMERGENCY MED, SAINT LOUIS, MO 63136(314) 362-9123(314) 747-9160 Get Directions Write a Review

NPPES record last updated: July 14, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jan 30, 2017, Dec 16, 2015 (2 updates tracked since 2015).

About Ms. Anissa Fay Washington Fnp NPPES

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

MS. ANISSA FAY WASHINGTON FNP (NPI 1144685272) is an individual family provider in Saint Louis, Missouri, licensed in Missouri (2016003781) and active in the NPI registry since December 2015. She is enrolled in Medicare PECOS, is affiliated with Christian Hospital Northeast, and is a graduate of Other (2015).

NPPES Registry Identity

NPI1144685272
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMS. ANISSA FAY WASHINGTONCredential: FNP
Location Address11133 DUNN RD, DEPT EMERGENCY MEDSaint Louis, MO 63136-6163
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 362-9123 · Fax (314) 747-9160
Fax(314) 747-9160
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateDecember 16, 2015
Last NPPES UpdateJuly 14, 20252 updates tracked since enumeration
✔ NPI 1144685272 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 · 2016003781
11133 DUNN RD, Saint Louis, MO 63136

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. Anissa Fay Washington 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 ID6204132293
PECOS Enrollment IDI20160324001012
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 Anissa Washington reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Emergency Care
11133 DUNN RD
Saint Louis, MO 63136
  • Reassigned Medicare billing, Missouri enrollment
  • 114 clinicians in this Medicare group
Emergency Medicine
1 MEMORIAL DR
Alton, IL 62002
  • Reassigned Medicare billing, Missouri enrollment
  • 343 clinicians in this Medicare group
Emergency Medicine
910 BLACKFORD ST
Chattanooga, TN 37403
  • Reassigned Medicare billing, Illinois and Missouri enrollments
  • Medicare enrollment name: Southeastern Emergency Services Of Memphis PC
  • 15 clinicians in this Medicare group
Hospitalist
990 OAK RIDGE TPKE
Oak Ridge, TN 37830
  • Reassigned Medicare billing, Missouri enrollment
  • 193 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.

Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
42 services40 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
28 services26 patients

Hospital Affiliations CMS Care Compare

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

Christian Hospital Northeast

Acute Care Hospitals · Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260180
Location11133 Dunn RoadSaint Louis, MO 63136 · St. Louis County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63136 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.

Anesthesiologist Assistant
11133 DUNN RD
SAINT LOUIS, MO 63136
Radiology (Diagnostic Radiology)
11133 DUNN RD, DEPT RADIOLOGY
SAINT LOUIS, MO 63136
Internal Medicine (Critical Care Medicine)
11133 DUNN RD
SAINT LOUIS, MO 63136
Pathology (Anatomic Pathology)
11133 DUNN RD, DEPT. OF PATHOLOGY
SAINT LOUIS, MO 63136
Nurse Practitioner (Family)
11133 DUNN RD, SUITE 2335
SAINT LOUIS, MO 63136
Emergency Medicine
11133 DUNN RD, DEPT EMERGENCY MED
SAINT LOUIS, MO 63136
Nurse Practitioner
11133 DUNN RD, DEPT EMERGENCY MED
SAINT LOUIS, MO 63136
Psychiatric Unit
11133 DUNN RD
SAINT LOUIS, MO 63136

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 Anissa Washington's NPI number?

The NPI number for Anissa Washington is 1144685272. It was assigned to this individual provider in the NPPES registry on December 16, 2015.

Where is Anissa Washington located?

Anissa Washington practices at 11133 Dunn Rd Dept Emergency Med, Saint Louis, MO 63136. The listed phone number is (314) 362-9123.

What is Anissa Washington's specialty?

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

Is Anissa Washington enrolled in Medicare?

Yes. Anissa Washington 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 Anissa Washington's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Anissa Washington reassigns Medicare benefits to 4 organizations: Washington University Community Specialists, LLC (Saint Louis, MO), Southeastern Emergency Physicians Of Memphis LLC (Alton, IL), Southeastern Emergency Services Of Memphis, P.C. (Chattanooga, TN) and Southeastern Physician Services PC (Oak Ridge, TN). 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 Anissa Washington's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Anissa Washington affiliated with any hospitals?

According to CMS data, Anissa Washington is affiliated with Christian Hospital Northeast.

When was this NPI record last updated?

The NPPES record for Anissa Washington was last updated on July 14, 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.