JOHN DAVID MAHARREY CRNA
NPI 1689019929
Nurse Anesthetist, Certified Registered in Oxford, MS
About John David Maharrey Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN DAVID MAHARREY CRNA (NPI 1689019929) is an individual nurse anesthetist, certified registered in Oxford, Mississippi, licensed in Tennessee (22072) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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 David Maharrey 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
2Medicare enrollment records show John Maharrey reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oxford, MS 38655
- Reassigned Medicare billing, Mississippi and Tennessee enrollments
- Also billed through NPI 1184575011 (Tennessee)
- 122 clinicians in this Medicare group
Memphis, TN 38125
- Reassigned Medicare billing, Mississippi enrollment
- 284 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 38655 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
OXFORD, MS 38655
OXFORD, MS 38655
OXFORD, MS 38655
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 Maharrey's NPI number?
The NPI number for John Maharrey is 1689019929. It was assigned to this individual provider in the NPPES registry on April 30, 2013.
Where is John Maharrey located?
John Maharrey practices at 2704 W Oxford Loop Suite 117, Oxford, MS 38655. The listed phone number is (662) 550-4299.
What is John Maharrey's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is John Maharrey enrolled in Medicare?
Yes. John Maharrey 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 Maharrey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Maharrey reassigns Medicare benefits to 2 organizations: Willow Anesthesia Services LLC (Oxford, MS) and Lifelinc Anesthesia, PLLC (Memphis, 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 John Maharrey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Maharrey accept?
Health plans from Oscar Health Plan, Inc. and Oscar Insurance Company list John Maharrey 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 Maharrey was last updated on February 23, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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 David Maharrey, CRNA · NPI 1689019929
Nurse Anesthetist, Certified Registered physician in Oxford, Mississippi. Individual provider, active in the CMS NPPES registry since April 30, 2013.
## Identity
- **NPI:** 1689019929 (Entity type: Individual)
- **Enumerated:** April 30, 2013
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 22072 (Tennessee)
- **Sole proprietor:** No
## Practice location
- **Address:** 2704 W OXFORD LOOP, SUITE 117, Oxford, MS 38655-5714
- **Phone:** (662) 550-4299
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Willow Anesthesia Services LLC (NPI 1205169521, Oxford, MS); Lifelinc Anesthesia, PLLC (NPI 1801021464, Memphis, TN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** February 23, 2017
- **Other identifiers:** Medicare UPIN 439062YV2Z (MS)
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Source: [NPI Profile](https://npiprofile.com/npi/1689019929) · Data from the CMS NPPES public registry.