Doctor profile · Federal record
Dr. John Willis, DO
Internal Medicine Physician (CMS: Internal Medicine) · Mansfield, TX
- NPI 1205891207
- Accepts Medicare
- 36 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
252 Matlock RD Ste 130
Mansfield, TX 760634295
(682) 242-8990
fax (682) 242-8996 - Additional location
-
2800 E Broad St Ste 512
Mansfield, TX 760636417
(817) 473-6867
fax (817) 453-0954
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- March 23, 2022
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Texas #J0366
- Medicaid
- TX #129827510
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1205891207. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
907
Distinct HCPCS
10
Medicare allowed
$82,519
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 298 | 159 | $125 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 295 | 165 | $89 | |
G0008 |
Administration of influenza virus vaccine | 76 | 74 | $30 | |
90662 |
Influenza vaccine split virus, preservative free | 71 | 69 | $72 | |
99497 |
Advance care planning, first 30 minutes | 53 | 53 | $80 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 50 | 50 | $124 | |
96372 |
Injection of drug or substance under skin or into muscle | 28 | 11 | $14 | |
81002 |
Urinalysis, manual test | 14 | 11 | $3 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 11 | 11 | $14 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 11 | 11 | $56 |
In context: peer comparison
Among 13 peers in this city , average services per provider: 139. This provider delivers 6.5× the peer median.Open Payments
Industry payments received
All-time total
$386
Transactions
19
Manufacturers
11
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals LP | 4 | $67.03 | |
| Lilly USA, LLC | 3 | $56.59 | |
| PFIZER INC. | 2 | $53.51 | |
| GlaxoSmithKline, LLC. | 2 | $39.97 | |
| Novo Nordisk Inc | 2 | $36.88 | |
| ABBVIE INC. | 1 | $33.50 | |
| Abbott Laboratories | 1 | $27.17 | |
| Verity Pharmaceuticals Inc. | 1 | $26.00 | |
| Phathom Pharmaceuticals, Inc. | 1 | $18.32 | |
| Amgen Inc. | 1 | $13.70 | |
| Exact Sciences Corporation | 1 | $13.70 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
3,615
Patients
1,000
Total drug cost
$44,877
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 511 | 141 | $3,700 |
| Atorvastatin Calcium | Generic | 491 | 140 | $6,203 |
| Losartan Potassium | Generic | 404 | 109 | $5,797 |
| Levothyroxine Sodium | Generic | 316 | 84 | $5,554 |
| Metformin Hcl | Generic | 254 | 73 | $2,881 |
| Lisinopril | Generic | 225 | 60 | $1,967 |
| Metoprolol Succinate | Generic | 196 | 56 | $4,209 |
| Pantoprazole Sodium | Generic | 180 | 51 | $2,947 |
| Hydrochlorothiazide | Generic | 172 | 49 | $949 |
| Gabapentin | Generic | 169 | 55 | $4,263 |
Frequently asked questions
What is Dr. John Willis's medical specialty?
Dr. John Willis practices Internal Medicine Physician in Mansfield, TX.
Where does Dr. John Willis practice?
Dr. John Willis practices at 252 Matlock RD Ste 130, Mansfield, TX 760634295. Office phone: 6822428990.
What is Dr. John Willis's NPI?
Dr. John Willis's National Provider Identifier (NPI) is 1205891207, issued by NPPES.
Does Dr. John Willis accept Medicare assignment?
Yes. Dr. John Willis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Willis commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Administration of influenza virus vaccine (HCPCS G0008). Source: CMS Medicare Physician & Other Practitioners file.