Doctor profile · Federal record
Dr. Stefanie Koelewyn, PA-C
Physician Assistant · Bellingham, MA
- NPI 1811617897
- Accepts Medicare
- 4 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
245 Hartford Ave
Bellingham, MA 020193007
(774) 295-4355
fax (774) 295-4880 - Mailing address
-
360 US Highway 1 Byp Unit 102
Portsmouth, NH 038017105
Credentials & registration
- NPI registered
- August 2022 — 4 yrs on file
- Profile last updated
- November 16, 2023
- Year of graduation
- 2022 — 4 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State license (1)
- Massachusetts #PA9081
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1811617897. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
93
Distinct HCPCS
4
Medicare allowed
$9,981
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99204 |
New patient office or other outpatient visit, 45-59 minutes | 41 | 41 | $148 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 28 | 26 | $119 | |
87880 |
Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) | 13 | 13 | $16 | |
71046 |
X-ray of chest, 2 views | 11 | 11 | $33 |
In context: peer comparison
Among 2 peers in Bellingham Physician Assistant, average services per provider: 35. This provider delivers 2.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
112
Patients
110
Total drug cost
$1,319
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 32 | 30 | $294 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 30 | 30 | $718 |
| Prednisone | Generic | 18 | 18 | $41 |
| Azithromycin | Generic | 17 | 17 | $94 |
| Doxycycline Hyclate | Generic | 15 | 15 | $171 |
Frequently asked questions
What is Dr. Stefanie Koelewyn's medical specialty?
Dr. Stefanie Koelewyn practices Physician Assistant in Bellingham, MA.
Where does Dr. Stefanie Koelewyn practice?
Dr. Stefanie Koelewyn practices at 245 Hartford Ave, Bellingham, MA 020193007. Office phone: 7742954355.
What is Dr. Stefanie Koelewyn's NPI?
Dr. Stefanie Koelewyn's National Provider Identifier (NPI) is 1811617897, issued by NPPES.
Does Dr. Stefanie Koelewyn accept Medicare assignment?
Yes. Dr. Stefanie Koelewyn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stefanie Koelewyn 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 99214); Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) (HCPCS 87880). Source: CMS Medicare Physician & Other Practitioners file.