JOHN G. NICHOLAS M.D.
NPI 1891733036
Anesthesiology in Birmingham, AL
About John G. Nicholas M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN G. NICHOLAS M.D. (NPI 1891733036) is an individual anesthesiology provider in Birmingham, Alabama, licensed in Alabama (00011406) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
John G. Nicholas M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show John Nicholas reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Birmingham, AL 35233
- Reassigned Medicare billing, Alabama enrollment
- 4,494 clinicians in this Medicare group
Hoover, AL 35244
- Reassigned Medicare billing, Alabama enrollment
- 113 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
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.
BIRMINGHAM, AL 35234
BIRMINGHAM, AL 35234
BIRMINGHAM, AL 35234
BIRMINGHAM, AL 35234
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 Nicholas's NPI number?
The NPI number for John Nicholas is 1891733036. It was assigned to this individual provider in the NPPES registry on June 2, 2006.
Where is John Nicholas located?
John Nicholas practices at 1600 Carraway Blvd, Birmingham, AL 35234. The listed phone number is (205) 502-6817.
What is John Nicholas's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is John Nicholas enrolled in Medicare?
Yes. John Nicholas is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for John Nicholas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Nicholas reassigns Medicare benefits to 2 organizations: University Of Alabama Health Services Foundation, PC (Birmingham, AL) and Southern Perioperative Services P C (Hoover, AL). 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 Nicholas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for John Nicholas was last updated on July 13, 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.