Doctor profile · Federal record
Dr. Mark Williams, MD
Internal Medicine Physician (CMS: Internal Medicine) · Johnson City, TN
- NPI 1033114988
- Accepts Medicare
- 34 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
301 MED Tech Pkwy, Ste 240
Johnson City, TN 376042364
(423) 794-5520
fax (423) 282-6940 - Mailing address
-
Po Box 632476
Cincinnati, OH 452632476
Credentials & registration
- NPI registered
- June 2005 — 21 yrs on file
- Profile last updated
- February 24, 2025
- Year of graduation
- 1992 — 34 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Tennessee #24923
- Medicaid (2)
- TN #1521184 · TN #3091551
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1033114988. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
17,927
Distinct HCPCS
10
Medicare allowed
$370,148
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
80053 |
Blood test, comprehensive group of blood chemicals | 2,185 | 1,144 | $10 | |
36415 |
Insertion of needle into vein for collection of blood sample | 1,518 | 887 | $8 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 1,357 | 812 | $7 | |
86140 |
Measurement c-reactive protein for detection of infection or inflammation | 1,339 | 793 | $5 | |
85027 |
Complete blood cell count (red cells, white blood cell, platelets), automated test | 1,126 | 645 | $6 | |
85652 |
Red blood cell sedimentation rate, to detect inflammation, automated | 1,085 | 673 | $3 | |
97110 |
Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes | 714 | 49 | $23 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 675 | 287 | $116 | |
80061 |
Blood test, lipids (cholesterol and triglycerides) | 513 | 341 | $13 | |
84443 |
Blood test, thyroid stimulating hormone (tsh) | 460 | 387 | $16 |
In context: peer comparison
Among 41 peers in Johnson City Internal Medicine Physician, average services per provider: 129. This provider delivers 139× the peer median.Open Payments
Industry payments received
All-time total
$192
Transactions
10
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 4 | $83.74 | |
| Lilly USA, LLC | 4 | $66.86 | |
| Novo Nordisk INC | 1 | $21.68 | |
| Tactile Systems Technology INC | 1 | $19.64 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
6,274
Patients
1,495
Total drug cost
$83,199
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 705 | 154 | $11,983 |
| Amlodipine Besylate | Generic | 528 | 137 | $2,966 |
| Rosuvastatin Calcium | Generic | 505 | 145 | $6,295 |
| Alprazolam | Generic | 481 | 63 | $1,884 |
| Atorvastatin Calcium | Generic | 476 | 121 | $5,394 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 415 | 66 | $9,722 |
| Furosemide | Generic | 397 | 113 | $2,196 |
| Lisinopril | Generic | 384 | 109 | $2,576 |
| Losartan Potassium | Generic | 377 | 103 | $5,119 |
| Pantoprazole Sodium | Generic | 368 | 104 | $5,863 |
Hospital affiliations
Frequently asked questions
What is Dr. Mark Williams's medical specialty?
Dr. Mark Williams practices Internal Medicine Physician in Johnson City, TN.
Where does Dr. Mark Williams practice?
Dr. Mark Williams practices at 301 MED Tech Pkwy, Johnson City, TN 376042364. Office phone: 4237945520.
What is Dr. Mark Williams's NPI?
Dr. Mark Williams's National Provider Identifier (NPI) is 1033114988, issued by NPPES.
Does Dr. Mark Williams accept Medicare assignment?
Yes. Dr. Mark Williams accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Williams commonly perform?
Top Medicare-reported procedures in 2023: Blood test, comprehensive group of blood chemicals (HCPCS 80053); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (HCPCS 85025). Source: CMS Medicare Physician & Other Practitioners file.