Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Clifford Carlson, MD, PHD

Allergy & Immunology Physician in New Orleans, LA · enumerated 2008.

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

National Provider Identifier

1700058310

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Registry record

Entity type Individual (Type 1)

Name John Clifford Carlson

Credential MD, PHD

Sex Male

Practice address 1430 Tulane Ave # Sl-37, New Orleans, LA, 70112

Phone (504) 988-5456

Fax (504) 988-1771

Enumeration date Mar 24, 2008

Last updated in NPPES Mar 8, 2018

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License MD.200766 (LA) Secondary

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License MD.200766 (LA) 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
01870255	Medicaid	MS	-
1069612	Medicaid	LA	-

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.

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Frequently asked questions

How do I verify John Carlson's NPI record?

Cross-check NPI 1700058310 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1700058310 active?

Yes, as of the latest NPPES snapshot, NPI 1700058310 is active (record last updated 2018-03-08).

Other providers at this practice address

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Esteban Gershanik Internal Medicine Physician · New Orleans, LA NPI 1376723858 Mary Rossi Pediatrics Physician · New Orleans, LA NPI 1598938110 Kannan Baskar Pediatrics Physician · New Orleans, LA NPI 1225292980 Diana Cejas Student in an Organized Health Care Education/Training Program · New Orleans, LA NPI 1356667752

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-08.