JOHN SAINT JOHN BARBER
NPI 1598393134
Allergy & Immunology in Durham, NC
About John Saint John Barber NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN SAINT JOHN BARBER (NPI 1598393134) is an individual allergy & immunology provider in Durham, North Carolina, licensed in North Carolina (2024-01439) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses
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 Saint John Barber 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 Barber reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Durham, NC 27704
- Reassigned Medicare billing, North Carolina enrollment
- 3,671 clinicians in this Medicare group
Durham, NC 27704
- Reassigned Medicare billing, North Carolina enrollment
- 1,482 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.
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.
DURHAM, NC 27705
DURHAM, NC 27705
DURHAM, NC 27705
DURHAM, NC 27705
DURHAM, NC 27705
DURHAM, NC 27705
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 Barber's NPI number?
The NPI number for John Barber is 1598393134. It was assigned to this individual provider in the NPPES registry on March 30, 2020.
Where is John Barber located?
John Barber practices at 1821 Hillandale Rd, Durham, NC 27705. The listed phone number is (919) 620-7300.
What is John Barber's specialty?
The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.
Is John Barber enrolled in Medicare?
Yes. John Barber 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 Barber's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Barber reassigns Medicare benefits to 2 organizations: Duke Health Integrated Practice, Inc (Durham, NC) and Duke University Health System, Inc. (Durham, NC). 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 Barber's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Barber accept?
Health plans from Ambetter from Absolute Total Care, Ambetter of North Carolina, Ambetter of Tennessee, Blue Cross and Blue Shield of NC and Cigna Healthcare list John Barber 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.
When was this NPI record last updated?
The NPPES record for John Barber was last updated on July 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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 Saint John Barber · NPI 1598393134
Allergy & Immunology physician in Durham, North Carolina. Individual provider, active in the CMS NPPES registry since March 30, 2020.
## Identity
- **NPI:** 1598393134 (Entity type: Individual)
- **Enumerated:** March 30, 2020
- **Primary specialty:** Allergy & Immunology · taxonomy 207K00000X
- **State license:** 2024-01439 (North Carolina)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1821 HILLANDALE RD, Durham, NC 27705-2659
- **Phone:** (919) 620-7300 · **Fax:** (919) 620-7300
## 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): Duke Health Integrated Practice, Inc (NPI 1518725936, Durham, NC); Duke University Health System, Inc. (NPI 1376574798, Durham, NC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** July 14, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1598393134) · Data from the CMS NPPES public registry.