Doctor profile · Federal record
Dr. Mark Sullivan, PA-C
Physician Assistant · Billings, MT
- NPI 1952393514
- Accepts Medicare
- 27 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2900 12Th Ave N, Suite 140W
Billings, MT 591017506
(406) 238-6540
fax (406) 238-6599
Credentials & registration
- NPI registered
- August 2005 — 21 yrs on file
- Profile last updated
- April 29, 2008
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State license (1)
- Montana #205
- Medicaid (2)
- MT #435438 · WY #119184500
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1952393514. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,799
Distinct HCPCS
10
Medicare allowed
$72,805
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J3301 |
Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 782 | 87 | $1 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 192 | 171 | $108 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 174 | 158 | $77 | |
72110 |
X-ray of lower and sacral spine, minimum of 4 views | 122 | 118 | $43 | |
20610 |
Aspiration and/or injection of fluid from large joint | 85 | 79 | $58 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 84 | 84 | $140 | |
73030 |
X-ray of shoulder, minimum of 2 views | 59 | 41 | $23 | |
73564 |
X-ray of knee, 4 or more views | 54 | 39 | $32 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 44 | 44 | $96 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 41 | 32 | $48 |
In context: peer comparison
Among 47 peers in this city , average services per provider: 109. This provider delivers 17× the peer median.Open Payments
Industry payments received
All-time total
$21
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Saluda Medical Americas, Inc. | 1 | $21.39 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
384
Patients
293
Total drug cost
$2,550
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Meloxicam | Generic | 106 | 71 | $439 |
| Methylprednisolone | Generic | 93 | 88 | $966 |
| Gabapentin | Generic | 50 | 31 | $355 |
| Tramadol Hcl | Generic | 48 | 37 | $202 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 27 | 23 | $299 |
| Cyclobenzaprine Hcl | Generic | 22 | 18 | $83 |
| Lorazepam | Generic | 13 | 12 | $11 |
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 13 | 13 | $53 |
| Acetaminophen-Codeine (Acetaminophen With Codeine) | Brand | 12 | 0 | $142 |
Hospital affiliations
Frequently asked questions
What is Dr. Mark Sullivan's medical specialty?
Dr. Mark Sullivan practices Physician Assistant in Billings, MT.
Where does Dr. Mark Sullivan practice?
Dr. Mark Sullivan practices at 2900 12Th Ave N, Billings, MT 591017506. Office phone: 4062386540.
What is Dr. Mark Sullivan's NPI?
Dr. Mark Sullivan's National Provider Identifier (NPI) is 1952393514, issued by NPPES.
Does Dr. Mark Sullivan accept Medicare assignment?
Yes. Dr. Mark Sullivan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Sullivan commonly perform?
Top Medicare-reported procedures in 2023: Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.