CATHERINE SIMONSEN PAA
NPI 1538236146
Anesthesiologist Assistant in Atlanta, GA

Q: What is Catherine Simonsen's NPI number?

The NPI number for Catherine Simonsen is 1538236146. It was assigned to this individual provider in the NPPES registry on November 29, 2006.

Q: What is Catherine Simonsen's specialty?

The primary specialty registered for this NPI is Anesthesiologist Assistant with taxonomy code 367H00000X.

Active since November 29, 2006Accepts Medicare Assignment

1405 CLIFTON RD NE FL 3, ATLANTA, GA 30322(404) 785-6670(404) 785-1362 Get Directions Write a Review

NPPES record last updated: June 6, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 6, 2022, Jun 25, 2021 (2 updates tracked since 2021).

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About Catherine Simonsen Paa NPPES

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

CATHERINE SIMONSEN PAA (NPI 1538236146) is an individual anesthesiologist assistant in Atlanta, Georgia, licensed in Georgia (4197) and active in the NPI registry since November 2006. She is a graduate of Other (2003).

NPPES Registry Identity

NPI1538236146

Entity TypeIndividualFemale

Primary Taxonomy367H00000X

Provider Legal NameCATHERINE SIMONSENCredential: PAA

Location Address1405 CLIFTON RD NE FL 3Atlanta, GA 30322-1060

Mailing Address1405 Clifton Rd Ne Fl 3Atlanta, GA 30322-1060 · (404) 785-6670 · Fax (404) 785-1362

Phone(404) 785-6670

Fax(404) 785-1362

Sole ProprietorNo

Medical School CMSOtherGraduated 2003

Enumeration DateNovember 29, 2006

Last NPPES UpdateJune 6, 20222 updates tracked since enumeration

✔ NPI 1538236146 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologist AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code367H00000X

License✔ Licensed in GA · 4197

Definition

An individual certified by the state to perform anesthesia services under the direct supervision of an anesthesiologist. Anesthesiologist Assistants are required to have a bachelor's degree with a premed curriculum prior to entering a two-year anesthesiology assistant program, which is focused upon the delivery and maintenance of anesthesia care as well as advanced patient monitoring techniques. An Anesthesiologist Assistant must work as a member of the anesthesia care team under the direction of a qualified Anesthesiologist.

1405 CLIFTON RD NE FL 3, Atlanta, GA 30322

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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

Catherine Simonsen Paa 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 ID941282164

PECOS Enrollment IDI20040602000891

Medicare Billing Reassignments

Medicare enrollment records show Catherine Simonsen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Children's Anesthesia Services, LLC

2.9 mi

Pediatric Anesthesiology

1575 NORTHEAST EXPY NE
Brookhaven, GA 30329

Reassigned Medicare billing, Georgia enrollment
159 clinicians in this Medicare group

NPI 1437203098 (404) 785-6000

Choa Hospital Based, LLC

2.9 mi

Pediatrics

1575 NORTHEAST EXPY NE
Brookhaven, GA 30329

Reassigned Medicare billing, Georgia enrollment
251 clinicians in this Medicare group

NPI 1457695488 (404) 785-6000

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 20

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

MATTHEW LEWIS PAA

Anesthesiologist Assistant