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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

ASHLAN NICOLE DEROUEN
NPI 1851204663
Physician Assistant - Medical in Baton Rouge, LA

Active since September 23, 2026
8300 CONSTANTIN BLVD, BATON ROUGE, LA 70809(225) 374-4325 Get Directions Write a Review

NPPES record added: October 19, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Ashlan Nicole Derouen NPPES

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

ASHLAN NICOLE DEROUEN (NPI 1851204663) is an individual medical provider in Baton Rouge, Louisiana, licensed in Louisiana (354911) and active in the NPI registry since September 2026. She maintains a secondary practice location in Baltimore.

NPPES Registry Identity

NPI1851204663
Entity TypeIndividualFemale
Primary Taxonomy363AM0700X
Provider Legal NameASHLAN NICOLE DEROUEN
Location Address8300 CONSTANTIN BLVDBaton Rouge, LA 70809-3489
Mailing Address123 Austin RdYoungsville, LA 70592-6307 · (337) 354-6081
Phone(225) 374-4325
Sole ProprietorNo
Enumeration DateSeptember 23, 2026
Last NPPES UpdateOctober 19, 2026
NPPES CertifiedOctober 19, 2026
✔ NPI 1851204663 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AM0700X
License✔ Licensed in LA · 354911
8300 CONSTANTIN BLVD, Baton Rouge, LA 70809
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Secondary Practice Location 1

Location 14940 Eastern AveBaltimore, MD 21224-2735 · Phone (410) 550-0100

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.

DR. RICHARD FRANCIS LASSEIGNE JR. MD
Pediatrics
8300 CONSTANTIN BLVD
BATON ROUGE, LA 70809
East Baton Rouge Parish (225) 374-1410
MICHELLE LUSCO CAMBIAS NP
Nurse Practitioner (Neonatal)
8300 CONSTANTIN BLVD
BATON ROUGE, LA 70809
East Baton Rouge Parish (225) 374-4325
FRANCESCA TOCE WEEMS PA-C
Physician Assistant
8300 CONSTANTIN BLVD
BATON ROUGE, LA 70809
East Baton Rouge Parish (225) 374-1528
DR. NIVEDA ANITA CHELLAPPAN DO
Student in an Organized Health Care Education/Training Program
8300 CONSTANTIN BLVD
BATON ROUGE, LA 70809
East Baton Rouge Parish (225) 374-4325
ANNA P HUFFINES CPNP-AC/PC
Nurse Practitioner (Pediatrics)
8300 CONSTANTIN BLVD
BATON ROUGE, LA 70809
East Baton Rouge Parish (225) 374-1410
DR. ERIN RANTZ HAUCK M.D.
Hospitalist
8300 CONSTANTIN BLVD
BATON ROUGE, LA 70809
East Baton Rouge Parish (225) 374-5437
KRISTY KELLER PARENT PA
Physician Assistant (Surgical)
8300 CONSTANTIN BLVD
BATON ROUGE, LA 70809
East Baton Rouge Parish (225) 374-1410
JOHN PAUL LONA MD
Emergency Medicine
8300 CONSTANTIN BLVD
BATON ROUGE, LA 70809
East Baton Rouge Parish (225) 374-1410

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 Ashlan Derouen's NPI number?

The NPI number for Ashlan Derouen is 1851204663. It was assigned to this individual provider in the NPPES registry on September 23, 2026.

Where is Ashlan Derouen located?

Ashlan Derouen practices at 8300 Constantin Blvd, Baton Rouge, LA 70809. The listed phone number is (225) 374-4325.

What is Ashlan Derouen's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

When was this NPI record last updated?

The NPPES record for Ashlan Derouen was last updated on October 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 days 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.