DR. GREGORY NEIL DUNN MD
NPI 1033392659
Anesthesiology in Apo, AE

Q: What is Gregory Dunn's NPI number?

The NPI number for Gregory Dunn is 1033392659. It was assigned to this individual provider in the NPPES registry on December 6, 2007.

Q: What is Gregory Dunn's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Dunn was last updated on August 3, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.

Active since December 06, 2007PECOS EnrolledAccepts Medicare Assignment

48 MDG, UNIT 5210 BOX 230, APO, AE 09461 Get Directions Write a Review

NPPES record last updated: August 3, 2010. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Gregory Neil Dunn Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GREGORY NEIL DUNN MD (NPI 1033392659) is an individual anesthesiology provider in Apo, AE, licensed in North Carolina (2008-00782) and active in the NPI registry since December 2007. He is enrolled in Medicare PECOS, is affiliated with Methodist Medical Center Of Oak Ridge, and is a graduate of University Of Tennessee, Hsc, College Of Medicine (2006).

NPPES Registry Identity

NPI1033392659

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameDR. GREGORY NEIL DUNNCredential: MD

Location Address48 MDG, UNIT 5210 BOX 230Apo, AE 09461-0230

Mailing AddressPsc 41, Box 6394Apo, AE 09464-9998

Phone011163852090

Sole ProprietorNo

Medical School CMSUniversity Of Tennessee, Hsc, College Of MedicineGraduated 2006

Enumeration DateDecember 6, 2007

Last NPPES UpdateAugust 3, 2010

✔ NPI 1033392659 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in NC · 2008-00782

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna Healthcare.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

Dr. Gregory Neil Dunn 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.

PECOS PAC ID2668614181

PECOS Enrollment IDI20130813000811

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Gregory Dunn reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Covenant Anesthesia Group, PC

Anesthesiology

990 OAK RIDGE TPKE, ANESTHESIA DEPT
Oak Ridge, TN 37830

Reassigned Medicare billing, Tennessee enrollment
289 clinicians in this Medicare group

NPI 1639148117 (865) 691-9000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Methodist Medical Center Of Oak Ridge

Acute Care Hospitals · Oak Ridge, TN

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number440034

Location990 Oak Ridge Turnpike Box 529Oak Ridge, TN 37830 · Anderson County

Emergency services Birthing friendly

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.

DR. MATTHEW HENRY DO

Family Medicine

48 MDG, UNIT 5115
APO, AE 09461

(314) 226-8124

RYAN MICHAEL GERMAIN DMD

Dentist (General Practice)

48 MDG, OPC 41 BOX 15
APO, AE 09461

(163) 852-8010

CONCETTA LOMBARDO

Physician Assistant

48 MDG, UNIT 5210 BOX 230
APO, AE 09461

(163) 852-1847

DR. TAD CHRISTIAN THOLSTROM D.D.S.

Dentist

48 MDG, UNIT 5115
APO, AA 09461

DR. MOSHE DAVID GREENBERG PT, DPT, OCS, CSCS

Physical Therapist (Orthopedic)

48 MDG, UNIT 5115
APO, AE 09461

(999) 999-9999

JODIE F ANDERSON LCSW-S, ACSW

Social Worker (Clinical)

48 MDG, UNIT 5115
APO, AE 09461

(314) 226-8603

ROSE M BAUTISTA LCSW

Social Worker

48 MDG, UNIT 5115
APO, AE 09461

(575) 769-2345

JOSHUA LUKE LATHAM D.O.

Family Medicine

48 MDG, UNIT 5210
APO, AE 09461

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 Dunn's NPI number?

The NPI number for Gregory Dunn is 1033392659. It was assigned to this individual provider in the NPPES registry on December 6, 2007.

Where is Gregory Dunn located?

Gregory Dunn practices at 48 Mdg Unit 5210 Box 230, Apo, AE 09461.

What is Gregory Dunn's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Gregory Dunn enrolled in Medicare?

Yes. Gregory Dunn 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 organization bills Medicare for Gregory Dunn's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Dunn reassigns Medicare benefits to Covenant Anesthesia Group, PC (Oak Ridge, TN). The 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 Dunn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Dunn accept?

Health plans from Cigna Healthcare list Gregory Dunn 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 Gregory Dunn affiliated with any hospitals?

According to CMS data, Gregory Dunn is affiliated with Methodist Medical Center Of Oak Ridge.

When was this NPI record last updated?

The NPPES record for Gregory Dunn was last updated on August 3, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.