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DR. MARK NELSON M.D.
NPI 1336117944
Anesthesiology - Pain Medicine in Knoxville, TN

Active since March 09, 2006PECOS Enrolled
501 20TH ST, SUITE 606, KNOXVILLE, TN 37916(865) 546-8040(865) 541-2787 Get Directions Write a Review

NPPES record last updated: July 27, 2011. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Mark Nelson M.d. NPPES

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

DR. MARK NELSON M.D. (NPI 1336117944) is an individual pain medicine provider in Knoxville, Tennessee, licensed in Tennessee (15357) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1336117944
Entity TypeIndividualMale
Primary Taxonomy207LP2900X
Provider Legal NameDR. MARK NELSONCredential: M.D.
Location Address501 20TH ST, SUITE 606Knoxville, TN 37916-1809
Mailing Address501 20th St, Suite 606Knoxville, TN 37916-1809 · (865) 546-8040
Phone(865) 546-8040
Fax(865) 541-2787
Sole ProprietorNo
Enumeration DateMarch 9, 2006
Last NPPES UpdateJuly 27, 2011
✔ NPI 1336117944 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiology · Pain MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207LP2900X
License✔ Licensed in TN · 15357
Definition
An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists.
501 20TH ST, Knoxville, TN 37916
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Other Identifiers 7

OtherP00168918TN · Travelers Medicare
Medicare UPINA97297TN
Medicaid3008471TN
Other4087758TN · Blue Cross
Other100024069TN · Php Tenncare
Other4087758TN · Bluecare
Medicare PIN3008417TN

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mark Nelson M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Mark Nelson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

American Anesthesiology Of Tennessee, P.C.
Same address
Nurse Anesthetist, Certified Registered
501 20TH ST, SUITE 606
Knoxville, TN 37916
  • Reassigned Medicare billing, Tennessee enrollment
  • Medicare enrollment name: American Anesthesiology Of Tennessee PC
  • 959 clinicians in this Medicare group
NPI 1245279777 (865) 546-8040

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

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. JAMES WIKE M.D.
Anesthesiology (Pain Medicine)
501 20TH ST, SUITE 606
KNOXVILLE, TN 37916
Knox County (865) 546-8040
ABNER MICHAEL GLOVER M.D.
Colon & Rectal Surgery
501 20TH ST, SUITE 501
KNOXVILLE, TN 37916
Knox County (865) 525-4109
MICHELLE L PALMER CRNA
Nurse Anesthetist, Certified Registered
501 20TH ST, SUITE 606
KNOXVILLE, TN 37916
Knox County (865) 546-8040
KRISTIN BURNETTE FNP
Nurse Practitioner (Family)
501 20TH ST, SUITE 404
KNOXVILLE, TN 37916
Knox County (865) 522-6964
ELIZABETH STEVENS CRNA
Nurse Anesthetist, Certified Registered
501 20TH ST, SUITE 606
KNOXVILLE, TN 37916
Knox County (865) 546-8040
GREGORY WILLIAM HAGOPIAN CRNA
Nurse Anesthetist, Certified Registered
501 20TH ST, SUITE 606
KNOXVILLE, TN 37916
Knox County (865) 546-8040
WANDA WHITE CRNA
Nurse Anesthetist, Certified Registered
501 20TH ST, SUITE 606
KNOXVILLE, TN 37916
Knox County (865) 546-8040
MARK S MUMFORD MD
Anesthesiology
501 20TH ST
KNOXVILLE, TN 37916
Knox County (865) 546-8040

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 Mark Nelson's NPI number?

The NPI number for Mark Nelson is 1336117944. It was assigned to this individual provider in the NPPES registry on March 9, 2006.

Where is Mark Nelson located?

Mark Nelson practices at 501 20th St Suite 606, Knoxville, TN 37916. The listed phone number is (865) 546-8040.

What is Mark Nelson's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.

Is Mark Nelson enrolled in Medicare?

Yes. Mark Nelson is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mark Nelson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Nelson reassigns Medicare benefits to American Anesthesiology Of Tennessee, P.C. (Knoxville, 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 Mark Nelson'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 Mark Nelson was last updated on July 27, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.