GREGORY KEITH LAMBERT CRNA
NPI 1548331101
Nurse Anesthetist, Certified Registered in Southaven, MS
About Gregory Keith Lambert Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY KEITH LAMBERT CRNA (NPI 1548331101) is an individual nurse anesthetist, certified registered in Southaven, Mississippi, licensed in Mississippi (A810173) and active in the NPI registry since November 2006. He is a graduate of Other (1993).
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
Gregory Keith Lambert Crna 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
3Medicare enrollment records show Gregory Lambert reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Memphis, TN 38119
- Reassigned Medicare billing, Tennessee enrollment
- 99 clinicians in this Medicare group
Memphis, TN 38125
- Reassigned Medicare billing, Tennessee enrollment
- 104 clinicians in this Medicare group
Springfield, TN 37172
- Reassigned Medicare billing, Tennessee enrollment
- 204 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 38671 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 15
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SOUTHAVEN, MS 38671
SOUTHAVEN, MS 38671
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 Gregory Lambert's NPI number?
The NPI number for Gregory Lambert is 1548331101. It was assigned to this individual provider in the NPPES registry on November 13, 2006.
Where is Gregory Lambert located?
Gregory Lambert practices at 401 Southcrest Cir Suite 200, Southaven, MS 38671. The listed phone number is (662) 349-2588.
What is Gregory Lambert's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Gregory Lambert enrolled in Medicare?
Yes. Gregory Lambert 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 Gregory Lambert's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Lambert reassigns Medicare benefits to 3 organizations: Medical Anesthesia Group, PA (Memphis, TN), Lifelinc Anesthesia, PLLC (Memphis, TN) and Lifelinc Anesthesia II, PLLC (Springfield, TN). 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 Gregory Lambert's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Lambert accept?
Health plans from Cigna Healthcare list Gregory Lambert 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 Gregory Lambert was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Gregory Keith Lambert, CRNA · NPI 1548331101
Nurse Anesthetist, Certified Registered physician in Southaven, Mississippi. Individual provider, active in the CMS NPPES registry since November 13, 2006.
## Identity
- **NPI:** 1548331101 (Entity type: Individual)
- **Enumerated:** November 13, 2006
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** A810173 (Mississippi)
- **Sole proprietor:** No
## Practice location
- **Address:** 401 SOUTHCREST CIR, SUITE 200, Southaven, MS 38671-6726
- **Phone:** (662) 349-2588 · **Fax:** (662) 349-2577
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Medical Anesthesia Group, PA (NPI 1679527501, Memphis, TN); Lifelinc Anesthesia, PLLC (NPI 1801021464, Memphis, TN); Lifelinc Anesthesia II, PLLC (NPI 1821397233, Springfield, TN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1993
## Record status
- **NPPES last updated:** July 8, 2007
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Source: [NPI Profile](https://npiprofile.com/npi/1548331101) · Data from the CMS NPPES public registry.