Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Adrienne Sizer Johnson, CRNA, DNP

Certified Registered Nurse Anesthetist in Jackson, MS · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1275754285

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Registry record

Entity type Individual (Type 1)

Name Dr. Adrienne Sizer Johnson

Credential CRNA, DNP

Sex Female

Practice address 2500 N State St, Jackson, MS, 39216

Phone (601) 984-5900

Fax (601) 933-9525

Enumeration date May 1, 2007

Last updated in NPPES Nov 21, 2013

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License R866793 (MS) Primary

CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA credential

Other identifiers

Identifier	Type	State	Issuer
P00982101	Other	MS	RAILROAD MEDICARE PTAN
P00973179	Other	MS	RR MEDICARE
00323707	Medicaid	MS	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Adrienne Sizer Johnson practice?

The practice location on file with NPPES is in Jackson, MS. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Adrienne Sizer Johnson?

The National Provider Identifier (NPI) for Adrienne Sizer Johnson is 1275754285, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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University Ophthalmology Associates Ophthalmology Physician · Jackson, MS NPI 1477556231 George Russell Orthopaedic Trauma Physician · Jackson, MS NPI 1629072509 Lori Reed Orthopaedic Foot and Ankle Surgery Physician · Jackson, MS NPI 1285639955 Brian Crabtree Psychiatric Pharmacist · Jackson, MS NPI 1770580961 Jack Lewin Anatomic Pathology Physician · Jackson, MS NPI 1033117445 Robin Christian Family Nurse Practitioner · Jackson, MS NPI 1245230887 John Bethea Anesthesiology Physician · Jackson, MS NPI 1568462141 Linda Brodell Ophthalmology Physician · Jackson, MS NPI 1043210321

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-11-21.