Doctor profile · Federal record
Dr. Gretchen Mason, PA-C
Physician Assistant · Herrin, IL
- NPI 1245229111
- Accepts Medicare
- MIPS 84.7 / 100 · 2023
- 21 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
510 Lincoln Dr
Herrin, IL 629486334
(618) 997-6800
fax (618) 998-9124
Credentials & registration
- NPI registered
- October 2005 — 21 yrs on file
- Profile last updated
- March 25, 2009
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State license (1)
- Illinois #0850003442
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1245229111. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,850
Distinct HCPCS
10
Medicare allowed
$58,979
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J3301 |
Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 845 | 106 | $1 | |
73562 |
X-ray of knee, 3 views | 235 | 173 | $10 | |
20610 |
Aspiration and/or injection of fluid from large joint | 207 | 110 | $63 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 172 | 149 | $73 | |
73502 |
X-ray of hip, 2-3 views | 92 | 65 | $11 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 91 | 90 | $46 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 58 | 56 | $103 | |
J7323 |
Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose | 57 | 14 | $129 | |
27447 |
Replacement of knee joint, both sides of knee | 42 | 40 | $173 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 21 | 21 | $92 |
In context: peer comparison
Among 12 peers in this city , average services per provider: 97. This provider delivers 19× the peer median.Open Payments
Industry payments received
All-time total
$94
Transactions
3
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen Inc. | 1 | $46.80 | |
| Davol Inc. | 1 | $31.86 | |
| Tactile Systems Technology Inc | 1 | $14.89 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
121
Patients
44
Total drug cost
$1,018
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 71 | 44 | $713 |
| Celecoxib | Generic | 20 | 0 | $222 |
| Amoxicillin | Generic | 15 | 0 | $22 |
| Meloxicam | Generic | 15 | 0 | $61 |
Frequently asked questions
What is Dr. Gretchen Mason's medical specialty?
Dr. Gretchen Mason practices Physician Assistant in Herrin, IL.
Where does Dr. Gretchen Mason practice?
Dr. Gretchen Mason practices at 510 Lincoln Dr, Herrin, IL 629486334. Office phone: 6189976800.
What is Dr. Gretchen Mason's NPI?
Dr. Gretchen Mason's National Provider Identifier (NPI) is 1245229111, issued by NPPES.
Does Dr. Gretchen Mason accept Medicare assignment?
Yes. Dr. Gretchen Mason accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gretchen Mason commonly perform?
Top Medicare-reported procedures in 2023: Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301); X-ray of knee, 3 views (HCPCS 73562); Aspiration and/or injection of fluid from large joint (HCPCS 20610). Source: CMS Medicare Physician & Other Practitioners file.