MARK W JACKSON MD
NPI 1699745273
Internal Medicine - Gastroenterology in Knoxville, TN

Q: What is Mark Jackson's NPI number?

The NPI number for Mark Jackson is 1699745273. It was assigned to this individual provider in the NPPES registry on January 25, 2006.

Q: What is Mark Jackson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Mark Jackson was last updated on February 3, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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 January 25, 2006PECOS Enrolled

1819 W CLINCH AVE, SUITE 212, KNOXVILLE, TN 37916(865) 523-6418(865) 523-6587 Get Directions Write a Review

NPPES record last updated: February 3, 2012. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Mark W Jackson Md NPPES

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

MARK W JACKSON MD (NPI 1699745273) is an individual gastroenterology provider in Knoxville, Tennessee, licensed in Tennessee (MD28432) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1699745273

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameMARK W JACKSONCredential: MD

Location Address1819 W CLINCH AVE, SUITE 212Knoxville, TN 37916-2434

Mailing Address1819 W Clinch Ave, Suite 212Knoxville, TN 37916-2434 · (865) 523-6418 · Fax (865) 523-6587

Phone(865) 523-6418

Fax(865) 523-6587

Sole ProprietorNo

Enumeration DateJanuary 25, 2006

Last NPPES UpdateFebruary 3, 2012

✔ NPI 1699745273 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in TN · MD28432

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

1819 W CLINCH AVE, Knoxville, TN 37916

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Other Identifiers 2

Medicare UPIND40230TN

Medicare ID-Type Unspecified3805422TN

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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

Knoxville Gastrointestinal Specialists, PC

Same address

Gastroenterology

1819 W CLINCH AVE, SUITE 212
Knoxville, TN 37916

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

NPI 1194910919 (865) 523-6418

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 37916 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$121.80 typical visit price

range $52.64 – $160.89

Typical copayment $30.45 (range $13.16 – $40.22)

Most-billed visit code 99204

Established Patient

$93.60 typical visit price

range $16.72 – $131.41

Typical copayment $23.40 (range $4.18 – $32.85)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Ostomy skin barrier, solid 4 x 4 or equivalent, extended wear, without built-in convexity, each A4385

DME-Orthotic Devices · category DF010N

1 supplier11 claims280 services$4.93 avg. paid by Medicare

Ostomy deodorant, with or without lubricant, for use in ostomy pouch, per fluid ounce A4394

DME-Orthotic Devices · category DF010N

1 supplier11 claims416 services$2.50 avg. paid by Medicare

Ostomy skin barrier, with flange (solid, flexible, or accordion), extended wear, with built-in convexity, 4 x 4 inches or smaller, each A4407

DME-Orthotic Devices · category DF010N

1 supplier11 claims330 services$8.13 avg. paid by Medicare

Ostomy pouch, drainable, high output, for use on a barrier with flange (2 piece system), with filter, each A4413

DME-Orthotic Devices · category DF010N

1 supplier11 claims330 services$5.32 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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. JOSHUA WEBER TODD M.D.

Internal Medicine (Interventional Cardiology)

1819 W CLINCH AVE, SUITE 108
KNOXVILLE, TN 37916

Knox County (865) 546-5111

JAMES B RIVERS JR. MD

Internal Medicine

1819 W CLINCH AVE, SUITE 114
KNOXVILLE, TN 37916

Knox County (865) 524-1631

LEE ROBERT DILWORTH MD

Internal Medicine (Cardiovascular Disease)

1819 W CLINCH AVE, SUITE 108
KNOXVILLE, TN 37916

Knox County (865) 546-5111

GEORGE ANDREW ADAMS M.D.

Internal Medicine

1819 W CLINCH AVE, SUITE 114
KNOXVILLE, TN 37916

Knox County (865) 524-1631

MR. JOEL EDWARD NORMAN MD

Neurological Surgery

1819 W CLINCH AVE, SUITE 214
KNOXVILLE, TN 37916

Knox County (865) 541-2835

MUHAMMED IQBAL MD

Internal Medicine (Gastroenterology)

1819 W CLINCH AVE, SUITE 212
KNOXVILLE, TN 37916

Knox County (865) 523-6418

WILLIAM R JOHNSON JR. MD

Family Medicine

1819 W CLINCH AVE, SUITE 114
KNOXVILLE, TN 37916

Knox County (865) 524-1631

KELLY L BAKER MD

Family Medicine

1819 W CLINCH AVE, SUITE 114
KNOXVILLE, TN 37916

Knox County (865) 524-1631

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 Jackson's NPI number?

The NPI number for Mark Jackson is 1699745273. It was assigned to this individual provider in the NPPES registry on January 25, 2006.

Where is Mark Jackson located?

Mark Jackson practices at 1819 W Clinch Ave Suite 212, Knoxville, TN 37916. The listed phone number is (865) 523-6418.

What is Mark Jackson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Mark Jackson enrolled in Medicare?

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

Which organization bills Medicare for Mark Jackson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Jackson reassigns Medicare benefits to Knoxville Gastrointestinal Specialists, PC (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 Jackson'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 Jackson was last updated on February 3, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.