Doctor profile · Federal record
Dr. Mark Anderson, MD
Gastroenterology Physician (CMS: Gastroenterology) · Gastroenterology Physician · Knoxville, TN
- NPI 1003993163
- Accepts Medicare
- MIPS 88.8 / 100 · 2023
- 42 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1928 Alcoa Hwy, B100
Knoxville, TN 37920
(865) 544-6570
fax (865) 544-6576 - Additional location
-
404 Lincoln Dr
Herrin, IL 629483789
(618) 993-0056
fax (618) 993-0752 - Mailing address
-
Po Box 888197
Knoxville, TN 379950001
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- February 4, 2026
- Year of graduation
- 1984 — 42 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- Tennessee #MD0000019697 · Illinois #036174985
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1003993163. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
305
Distinct HCPCS
9
Medicare allowed
$37,918
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 81 | 80 | $122 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 52 | 52 | $230 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 39 | 30 | $45 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 37 | 37 | $110 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 32 | 30 | $97 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 23 | 23 | $82 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 16 | 16 | $162 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 13 | 12 | $70 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 12 | 12 | $148 |
In context: peer comparison
Among 15 peers in Knoxville Gastroenterology Physician, average services per provider: 176. This provider delivers 1.7× the peer median.Open Payments
Industry payments received
All-time total
$103
Transactions
5
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Takeda Pharmaceuticals U.S.A., INC. | 2 | $45.20 | |
| Evoke Pharma, INC. | 1 | $22.76 | |
| Abbvie INC. | 1 | $21.38 | |
| Janssen Biotech, INC. | 1 | $13.48 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
69
Patients
45
Total drug cost
$100,154
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 45 | 45 | $767 |
| Genvoya (Elviteg/Cob/Emtri/Tenof Alafen) | Brand | 24 | 0 | $99,387 |
Frequently asked questions
What is Dr. Mark Anderson's medical specialty?
Dr. Mark Anderson practices Gastroenterology Physician in Knoxville, TN.
Where does Dr. Mark Anderson practice?
Dr. Mark Anderson practices at 1928 Alcoa Hwy, Knoxville, TN 37920. Office phone: 8655446570.
What is Dr. Mark Anderson's NPI?
Dr. Mark Anderson's National Provider Identifier (NPI) is 1003993163, issued by NPPES.
Does Dr. Mark Anderson accept Medicare assignment?
Yes. Dr. Mark Anderson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Anderson commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231). Source: CMS Medicare Physician & Other Practitioners file.