JOHN DALESSIO MD
NPI 1235226341
Anesthesiology in Nashville, TN
About John Dalessio Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN DALESSIO MD (NPI 1235226341) is an individual anesthesiology provider in Nashville, Tennessee, licensed in Tennessee (MD24530) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Methodist Hospitals Of Memphis, and is a graduate of University Of Connecticut School Of Medicine (1986).
NPPES Registry Identity
Specialties & Licenses
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 Dalessio Md 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
5Medicare enrollment records show John Dalessio reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Memphis, TN 38104
- Reassigned Medicare billing, Tennessee enrollment
- 255 clinicians in this Medicare group
Memphis, TN 38103
- Reassigned Medicare billing, Tennessee enrollment
- 421 clinicians in this Medicare group
Torrington, CT 06790
- Reassigned Medicare billing, Connecticut enrollment
- 64 clinicians in this Medicare group
Hartford, CT 06105
- Reassigned Medicare billing, Connecticut enrollment
- 302 clinicians in this Medicare group
Hartford, CT 06106
- Reassigned Medicare billing, Connecticut enrollment
- 417 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 4
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Methodist Hospitals Of Memphis
Acute Care Hospitals · Memphis, TNRegional One Health
Acute Care Hospitals · Memphis, TNOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Dalessio's NPI number?
The NPI number for John Dalessio is 1235226341. It was assigned to this individual provider in the NPPES registry on October 9, 2006.
Where is John Dalessio located?
John Dalessio practices at 3601 Tvc, Nashville, TN 37232. The listed phone number is (615) 322-3000.
What is John Dalessio's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is John Dalessio enrolled in Medicare?
Yes. John Dalessio 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 Dalessio's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Dalessio reassigns Medicare benefits to 5 organizations: Resource Anesthesiology Associates Of Tn PC (Memphis, TN), Ut Regional One Physicians Inc (Memphis, TN), Resource Anesthesiology Associates Of Ct PC (Torrington, CT), Woodland Anesthesia Associates PC (Hartford, CT) and Connecticut Gi PLLC (Hartford, CT). 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 Dalessio's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Dalessio accept?
Health plans from Oscar Insurance Company list John Dalessio 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 Dalessio affiliated with any hospitals?
According to CMS data, John Dalessio is affiliated with Methodist Hospitals Of Memphis and Regional One Health.
When was this NPI record last updated?
The NPPES record for John Dalessio 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.
# John Dalessio, MD · NPI 1235226341
Anesthesiology physician in Nashville, Tennessee. Individual provider, active in the CMS NPPES registry since October 9, 2006.
## Identity
- **NPI:** 1235226341 (Entity type: Individual)
- **Enumerated:** October 9, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** MD24530 (Tennessee)
- **Sole proprietor:** No
## Practice location
- **Address:** 3601 TVC, Nashville, TN 37232-0001
- **Phone:** (615) 322-3000
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Resource Anesthesiology Associates Of Tn PC (NPI 1316724073, Memphis, TN); Ut Regional One Physicians Inc (NPI 1093130585, Memphis, TN); Resource Anesthesiology Associates Of Ct PC (NPI 1447233176, Torrington, CT); Woodland Anesthesia Associates PC (NPI 1437109824, Hartford, CT); Connecticut Gi PLLC (NPI 1023124625, Hartford, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Connecticut School Of Medicine, class of 1986
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN E54787
---
Source: [NPI Profile](https://npiprofile.com/npi/1235226341) · Data from the CMS NPPES public registry.