Doctor profile · Federal record
Dr. John Mack, MD
Surgery Physician (CMS: General Surgery) · Longview, TX
- NPI 1801826151
- Accepts Medicare
- 39 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
707 Hollybrook Dr
Longview, TX 756052410
(903) 753-4666
fax (903) 753-6634 - Mailing address
-
Po Box 610393
Dallas, TX 752610393
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- June 13, 2019
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 208600000X — NUCC code
- State license (1)
- Texas #H6396
- Medicaid
- TX #099133305
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1801826151. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
745
Distinct HCPCS
10
Medicare allowed
$153,655
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99204 |
New patient office or other outpatient visit, 45-59 minutes | 189 | 189 | $158 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 181 | 142 | $85 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 51 | 49 | $123 | |
19301 |
Partial removal of breast | 44 | 38 | $623 | |
47563 |
Removal of gallbladder with x-ray study of bile ducts using an endoscope | 35 | 35 | $669 | |
38525 |
Biopsy or removal of deep lymph nodes of underarm | 31 | 31 | $227 | |
38900 |
Imaging of lymph nodes during surgery | 31 | 31 | $127 | |
99490 |
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 30 | 17 | $60 | |
G0279 |
Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) | 29 | 27 | $23 | |
49505 |
Repair of groin hernia (5 years or older) | 22 | 22 | $501 |
In context: peer comparison
Among 6 peers in this city , average services per provider: 33. This provider delivers 23× the peer median.Open Payments
Industry payments received
All-time total
$21
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Davol Inc. | 1 | $20.72 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
378
Patients
359
Total drug cost
$1,950
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Tramadol Hcl | Generic | 192 | 181 | $682 |
| Ondansetron Hcl | Generic | 186 | 178 | $1,268 |
Hospital affiliations
Frequently asked questions
What is Dr. John Mack's medical specialty?
Dr. John Mack practices Surgery Physician in Longview, TX.
Where does Dr. John Mack practice?
Dr. John Mack practices at 707 Hollybrook Dr, Longview, TX 756052410. Office phone: 9037534666.
What is Dr. John Mack's NPI?
Dr. John Mack's National Provider Identifier (NPI) is 1801826151, issued by NPPES.
Does Dr. John Mack accept Medicare assignment?
Yes. Dr. John Mack accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Mack commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.