Doctor profile · Federal record
Dr. Mark Sullivan, PA-C
Surgical Physician Assistant (CMS: Physician Assistant) · Surgical Physician Assistant · Portsmouth, NH
- NPI 1225075328
- Accepts Medicare
- 34 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
333 Borthwick Avenue, Suite 402
Portsmouth, NH 03801
(603) 559-4111
fax (603) 663-6822 - Additional location
-
333 Borthwick Ave, Suite 402
Portsmouth, NH 038017128
fax (603) 559-4110
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- October 4, 2023
- Year of graduation
- 1992 — 34 yrs since
- Specialty taxonomy
- 363AS0400X — NUCC code
- State licenses (2)
- New Hampshire #0238P · Maine #PA 880
- Medicaid
- NH #3076816
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1225075328. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
32
Distinct HCPCS
2
Medicare allowed
$2,607
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 21 | 18 | $67 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 11 | 11 | $110 |
In context: peer comparison
Among 4 peers in this city , average services per provider: 42. This provider delivers 0.8× the peer median.Open Payments
Industry payments received
All-time total
$308
Transactions
6
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Pharmaceuticals, Inc | 2 | $213.55 | |
| ABIOMED | 1 | $33.73 | |
| Edwards Lifesciences Corporation | 1 | $22.31 | |
| AstraZeneca Pharmaceuticals LP | 1 | $22.09 | |
| Stryker Corporation | 1 | $16.61 |
By nature of payment
Frequently asked questions
What is Dr. Mark Sullivan's medical specialty?
Dr. Mark Sullivan practices Surgical Physician Assistant in Portsmouth, NH.
Where does Dr. Mark Sullivan practice?
Dr. Mark Sullivan practices at 333 Borthwick Avenue, Portsmouth, NH 03801. Office phone: 6035594111.
What is Dr. Mark Sullivan's NPI?
Dr. Mark Sullivan's National Provider Identifier (NPI) is 1225075328, 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: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.