Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mary Carleton Johnston, MD

Obstetrics & Gynecology Physician in Mobile, AL · enumerated 2018.

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

National Provider Identifier

1376034298

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Mary Carleton Johnston

Credential MD

Sex Female

Practice address 1720 Spring Hill Ave Ste 400, Mobile, AL, 36604

Phone (251) 435-7700

Fax (251) 435-7702

Enumeration date May 26, 2018

Last updated in NPPES Jun 17, 2026

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License 44776 (AL) Secondary

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 44776 (AL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
287573	Medicaid	AL	-

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

How do I verify Mary Carleton Johnston's NPI record?

Cross-check NPI 1376034298 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1376034298 active?

Yes, as of the latest NPPES snapshot, NPI 1376034298 is active (record last updated 2026-06-17).

Other providers at this practice address

Browse all →

Brittney Laughlin Obstetrics & Gynecology Physician · Mobile, AL NPI 1649437732 Brian Dix Obstetrics & Gynecology Physician · Mobile, AL NPI 1700029519

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-17.