JOHN CLIFFORD CARLSON MD, PHD
NPI 1700058310
Allergy & Immunology in New Orleans, LA
About John Clifford Carlson Md, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN CLIFFORD CARLSON MD, PHD (NPI 1700058310) is an individual allergy & immunology provider in New Orleans, Louisiana, licensed in Louisiana (MD.200766) and active in the NPI registry since March 2008. He is enrolled in Medicare PECOS, is affiliated with Ochsner Medical Center Acute, and is a graduate of Tulane University School Of Medicine (2004).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
Accepted Insurance
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
John Clifford Carlson Md, Phd 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.
Medicare Billing Reassignments
2Medicare enrollment records show John Carlson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New Orleans, LA 70112
- Reassigned Medicare billing, Louisiana enrollment
- 851 clinicians in this Medicare group
New Orleans, LA 70139
- Reassigned Medicare billing, Louisiana enrollment
- 4,559 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ochsner Medical Center Acute
Acute Care Hospitals · New Orleans, LAOther Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW ORLEANS, LA 70112
NEW ORLEANS, LA 70112
NEW ORLEANS, LA 70112
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 John Carlson's NPI number?
The NPI number for John Carlson is 1700058310. It was assigned to this individual provider in the NPPES registry on March 24, 2008.
Where is John Carlson located?
John Carlson practices at 1430 Tulane Ave # Sl-37, New Orleans, LA 70112. The listed phone number is (504) 988-5456.
What is John Carlson's specialty?
The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.
Is John Carlson enrolled in Medicare?
Yes. John Carlson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for John Carlson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Carlson reassigns Medicare benefits to 2 organizations: Administrators Of The Tulane Educational Fund (New Orleans, LA) and Ochsner Clinic LLC (New Orleans, LA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Carlson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Carlson accept?
Health plans from AmeriHealth Caritas Next, Blue Cross and Blue Shield of Louisiana and HMO Louisiana list John Carlson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is John Carlson affiliated with any hospitals?
According to CMS data, John Carlson is affiliated with Ochsner Medical Center Acute.
When was this NPI record last updated?
The NPPES record for John Carlson was last updated on March 8, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years 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.
# John Clifford Carlson, MD, PHD · NPI 1700058310
Allergy & Immunology physician in New Orleans, Louisiana. Individual provider, active in the CMS NPPES registry since March 24, 2008.
## Identity
- **NPI:** 1700058310 (Entity type: Individual)
- **Enumerated:** March 24, 2008
- **Primary specialty:** Allergy & Immunology · taxonomy 207K00000X
- **State license:** MD.200766 (Louisiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 1430 TULANE AVE # SL-37, New Orleans, LA 70112-2632
- **Phone:** (504) 988-5456 · **Fax:** (504) 988-1771
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Administrators Of The Tulane Educational Fund (NPI 1528014164, New Orleans, LA); Ochsner Clinic LLC (NPI 1003379124, New Orleans, LA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tulane University School Of Medicine, class of 2004
## Record status
- **NPPES last updated:** March 8, 2018
- **Other identifiers:** Medicaid 1069612 (LA); Medicaid 01870255 (MS)
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Source: [NPI Profile](https://npiprofile.com/npi/1700058310) · Data from the CMS NPPES public registry.