Doctor profile · Federal record
Dr. Karissa Fox Koscheski, PA-C
Physician Assistant · Physician Assistant · Merrimack, NH
- NPI 1518460229
- Accepts Medicare
- 9 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2 Dobson Way
Merrimack, NH 030544340
(603) 471-6069
fax (603) 471-6068 - Mailing address
-
360 US Highway 1 Byp Unit 102
Portsmouth, NH 038017105
Credentials & registration
- NPI registered
- March 2018 — 8 yrs on file
- Profile last updated
- November 15, 2023
- Year of graduation
- 2017 — 9 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State licenses (2)
- New Hampshire #2035 · Missouri #2018004207
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1518460229. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
252
Distinct HCPCS
8
Medicare allowed
$19,633
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 95 | 88 | $85 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 47 | 47 | $143 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 28 | 28 | $97 | |
87804 |
Detection test by immunoassay with direct visual observation for influenza virus | 24 | 12 | $16 | |
87426 |
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus | 18 | 17 | $35 | |
93016 |
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | 15 | 15 | $17 | |
81003 |
Automated urinalysis test | 14 | 14 | $2 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 11 | 11 | $78 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 31. This provider delivers 8.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
2,330
Patients
650
Total drug cost
$249,899
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 326 | 84 | $3,230 |
| Carvedilol | Generic | 270 | 74 | $2,404 |
| Lisinopril | Generic | 220 | 66 | $1,475 |
| Eliquis (Apixaban) | Brand | 208 | 43 | $175,697 |
| Isosorbide Mononitrate Er (Isosorbide Mononitrate) | Brand | 202 | 55 | $4,249 |
| Metoprolol Succinate | Generic | 199 | 58 | $2,851 |
| Spironolactone | Generic | 132 | 34 | $842 |
| Amlodipine Besylate | Generic | 126 | 42 | $833 |
| Losartan Potassium | Generic | 123 | 41 | $1,409 |
| Pantoprazole Sodium | Generic | 103 | 29 | $1,380 |
Hospital affiliations
Frequently asked questions
What is Dr. Karissa Fox Koscheski's medical specialty?
Dr. Karissa Fox Koscheski practices Physician Assistant in Merrimack, NH.
Where does Dr. Karissa Fox Koscheski practice?
Dr. Karissa Fox Koscheski practices at 2 Dobson Way, Merrimack, NH 030544340. Office phone: 6034716069.
What is Dr. Karissa Fox Koscheski's NPI?
Dr. Karissa Fox Koscheski's National Provider Identifier (NPI) is 1518460229, issued by NPPES.
Does Dr. Karissa Fox Koscheski accept Medicare assignment?
Yes. Dr. Karissa Fox Koscheski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karissa Fox Koscheski commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.