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DR. MARK D ANDERSON MD
NPI 1003993163
Internal Medicine - Gastroenterology in Knoxville, TN

Active since November 01, 2006PECOS EnrolledAccepts Medicare Assignment
97.58/100
CMS Quality Rating
1928 ALCOA HWY, B100, KNOXVILLE, TN 37920(865) 544-6570(865) 544-6576 Get Directions Write a Review

NPPES record last updated: February 4, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 4, 2026, Nov 6, 2025 (2 updates tracked since 2025).

About Dr. Mark D Anderson Md NPPES

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

DR. MARK D ANDERSON MD (NPI 1003993163) is an individual gastroenterology provider in Knoxville, Tennessee, licensed in Tennessee (MD0000019697) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS, is affiliated with Herrin Hospital, and maintains a secondary practice location in Herrin.

NPPES Registry Identity

NPI1003993163
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. MARK D ANDERSONCredential: MD
Location Address1928 ALCOA HWY, B100Knoxville, TN 37920
Mailing AddressPo Box 888197Knoxville, TN 37995-0001 · (865) 305-6570 · Fax (865) 305-6576
Phone(865) 544-6570
Fax(865) 544-6576
Sole ProprietorNo
Medical School CMSVanderbilt University School Of MedicineGraduated 1984
Enumeration DateNovember 1, 2006
Last NPPES UpdateFebruary 4, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 4, 2026
✔ NPI 1003993163 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Licenses✔ Licensed in TN · MD0000019697✔ Licensed in IL · 036174985
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.
1928 ALCOA HWY, Knoxville, TN 37920
Open in Google Maps ↗

Secondary Practice Location 1

Location 1404 Lincoln DrHerrin, IL 62948-3789 · Phone (618) 993-0056 · Fax (618) 993-0752

Other Identifiers 1

Other2005657TN · Bcbs Of Tn

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Avera Health Plans, Oscar Insurance Company and more.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. Mark D Anderson 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 ID5597756759
PECOS Enrollment IDI20110217000217, I20230227002279, I20240808003551, I20251029003490
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 Reassignments

6

Medicare enrollment records show Mark Anderson reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Health System Inc
Same address
Diagnostic Radiology
1928 ALCOA HWY STE 315
Knoxville, TN 37920
  • Reassigned Medicare billing, Tennessee enrollment
  • 832 clinicians in this Medicare group
NPI 1639894397 (865) 558-0225
Knoxville Hma Physician Management, LLC
7.1 mi
Pulmonary Disease
4711 CENTERLINE DR STE 100
Knoxville, TN 37917
  • Reassigned Medicare billing, Tennessee enrollment
  • 147 clinicians in this Medicare group
NPI 1629356969 (865) 647-3260
Baptist Health Medical Group Inc
162 mi
Internal Medicine
2413 RING RD STE 100
Elizabethtown, KY 42701
  • Reassigned Medicare billing, Kentucky enrollment
  • 967 clinicians in this Medicare group
NPI 1093338527 (270) 737-0077
Ferrell Hospital Community Foundation
277 mi
Rural Health
1338A IL HIGHWAY 1, STE A
Carmi, IL 62821
  • Reassigned Medicare billing, Illinois enrollment
  • 74 clinicians in this Medicare group
NPI 1134650997 (618) 380-9321
Southern Illinois Medical Services, Nfp
316 mi
Internal Medicine
1239 E MAIN ST
Carbondale, IL 62901
  • Reassigned Medicare billing, Illinois enrollment
  • 702 clinicians in this Medicare group
NPI 1770656837 (618) 457-5200
Monument Health Rapid City Hospital, Inc.
1,115 mi
Family Medicine
112 7TH AVENUE
Wall, SD 57790
  • Reassigned Medicare billing, South Dakota enrollment
  • 831 clinicians in this Medicare group
NPI 1265811285 (605) 279-2149

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 6

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.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
51 services51 patients
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235
This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.
38 services36 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
31 services31 patients
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221
Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.
14 services14 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
13 services13 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Herrin Hospital

Acute Care Hospitals · Herrin, IL
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140011
Location201 S 14th StHerrin, IL 62948 · Williamson County
Emergency services

Memorial Hospital Of Carbondale

Acute Care Hospitals · Carbondale, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140164
Location405 W JacksonCarbondale, IL 62901 · Jackson County
Emergency services Birthing friendly

Ferrell Hospital Community Foundations

Critical Access Hospitals · Eldorado, IL
OwnershipVoluntary non-profit - Private
CMS Certification Number141324
Location1201 Pine StreetEldorado, IL 62930 · Saline County
Emergency services

Baptist Health Paducah

Acute Care Hospitals · Paducah, KY
5/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number180104
Location2501 Kentucky AvenuePaducah, KY 42003 · Mc Cracken County
Emergency services Birthing friendly

Monument Health Rapid City Hospital

Acute Care Hospitals · Rapid City, SD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number430077
Location353 Fairmont BlvdRapid City, SD 57701 · Pennington County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37920 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.

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.

97.58/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality86.53
Promoting Interoperability100
Improvement Activities40

Reported Quality Measures

Appropriate Follow-Up Interval for Normal Colonoscopy in Average Risk Patients
Percentage of patients aged 50 to 75 years of age receiving a screening colonoscopy without biopsy or polypectomy who had a recommended follow-up interval of at least 10 years for repeat colonoscopy documented in their colonoscopy report
99%135 patients
Appropriate indication for colonoscopy
Percentage of colonoscopy procedures performed for an indication that is included in a published standard list of appropriate indications and the indication is documented
94%1,123 patients4/55-star benchmark: 99%
NHCR4: Repeat screening or surveillance colonoscopy recommended within one year due to inadequate/poor bowel preparation
Percentage of patients recommended for repeat screening or surveillance colonoscopy within one year or less due to inadequate/poor bowel preparation quality
57%28 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 3

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

Enteral feeding supply kit; syringe fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4034
Other-Enteral and Parenteral · category OB006N
1 supplier11 claims330 services$2.91 avg. paid by Medicare
Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035
Other-Enteral and Parenteral · category OB006N
1 supplier14 claims345 services$7.32 avg. paid by Medicare
Enteral formula, nutritionally complete with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4150
Other-Enteral and Parenteral · category OB006N
1 supplier12 claims4,000 services$0.31 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. KATHERINE BONNER KAAK MD
Student in an Organized Health Care Education/Training Program
1928 ALCOA HWY
KNOXVILLE, TN 37920
Knox County (865) 305-8787
DR. DREW WILSON MILLER M.D.
Dermatology (MOHS-Micrographic Surgery)
1928 ALCOA HWY, STE 209
KNOXVILLE, TN 37920
Knox County (865) 524-2547
THOMAS L YOUNG MD
Internal Medicine (Gastroenterology)
1928 ALCOA HWY, STE 105
KNOXVILLE, TN 37920
Knox County (865) 305-9595
KNOXVILLE DERMATOLOGY GROUP PC
Dermatology
1928 ALCOA HWY, SUITE 209
KNOXVILLE, TN 37920
Knox County (865) 690-9467
DR. JACLYN BETH VAN NES M.D.
Obstetrics & Gynecology
1928 ALCOA HWY, MEDICAL BUILDING B SUITE 300
KNOXVILLE, TN 37920
Knox County (865) 305-9799
HUMBERTO RODRIGUEZ MD
Obstetrics & Gynecology (Gynecology)
1928 ALCOA HWY, STE 303
KNOXVILLE, TN 37920
Knox County (865) 305-9305
UNIVERSITY HEALTH SYSTEM, INC
Psychiatry & Neurology (Neurology)
1928 ALCOA HWY, STE 102
KNOXVILLE, TN 37920
Knox County (865) 305-6640
SHELBY ELAINE STRINGER MD
Obstetrics & Gynecology
1928 ALCOA HWY
KNOXVILLE, TN 37920
Knox County (865) 305-8787

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 Anderson's NPI number?

The NPI number for Mark Anderson is 1003993163. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Where is Mark Anderson located?

Mark Anderson practices at 1928 Alcoa Hwy B100, Knoxville, TN 37920. The listed phone number is (865) 544-6570.

What is Mark Anderson's specialty?

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

Is Mark Anderson enrolled in Medicare?

Yes. Mark Anderson 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 Mark Anderson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Anderson reassigns Medicare benefits to 6 organizations: University Health System Inc (Knoxville, TN), Knoxville Hma Physician Management, LLC (Knoxville, TN), Baptist Health Medical Group Inc (Elizabethtown, KY), Ferrell Hospital Community Foundation (Carmi, IL), Southern Illinois Medical Services, Nfp (Carbondale, IL) and 1 more organization, listed in the Medicare section above. 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 Mark Anderson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Anderson accept?

Health plans from Anthem Blue Cross and Blue Shield, Avera Health Plans, Oscar Insurance Company, Sanford Health Plan and Wellmark of South Dakota, Inc. list Mark Anderson 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 Mark Anderson affiliated with any hospitals?

According to CMS data, Mark Anderson is affiliated with Herrin Hospital, Memorial Hospital Of Carbondale, Ferrell Hospital Community Foundations, Baptist Health Paducah and Monument Health Rapid City Hospital.

When was this NPI record last updated?

The NPPES record for Mark Anderson was last updated on February 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.