Doctor profile · Federal record
Dr. Diana Slawniak, APRN
Family Nurse Practitioner (CMS: Nurse Practitioner) · Worcester, MA
- NPI 1700421526
- Accepts Medicare
- 7 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
44 W Boylston St
Worcester, MA 016051261
(508) 852-0238
Credentials & registration
- NPI registered
- November 2019 — 7 yrs on file
- Year of graduation
- 2019 — 7 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State license (1)
- Massachusetts #RN2300747
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1700421526. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
421
Distinct HCPCS
5
Medicare allowed
$48,244
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99204 |
New patient office or other outpatient visit, 45-59 minutes | 171 | 171 | $146 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 113 | 102 | $112 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 81 | 59 | $79 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 31 | 31 | $98 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 25 | 12 | $50 |
In context: peer comparison
Among 27 peers in Worcester Family Nurse Practitioner, average services per provider: 50. This provider delivers 8.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
618
Patients
308
Total drug cost
$115,231
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 102 | 102 | $1,529 |
| Omeprazole | Generic | 81 | 33 | $1,539 |
| Pantoprazole Sodium | Generic | 74 | 33 | $1,369 |
| Famotidine | Generic | 60 | 22 | $661 |
| Sucralfate | Generic | 59 | 35 | $1,585 |
| Diphenoxylate-Atropine (Diphenoxylate Hcl/Atropine) | Brand | 57 | 28 | $1,040 |
| Prednisone | Generic | 30 | 16 | $232 |
| Cholestyramine (Cholestyramine (With Sugar)) | Brand | 29 | 23 | $1,417 |
| Dicyclomine Hcl | Generic | 29 | 16 | $614 |
| Linzess (Linaclotide) | Brand | 28 | 0 | $22,460 |
Hospital affiliations
Frequently asked questions
What is Dr. Diana Slawniak's medical specialty?
Dr. Diana Slawniak practices Family Nurse Practitioner in Worcester, MA.
Where does Dr. Diana Slawniak practice?
Dr. Diana Slawniak practices at 44 W Boylston St, Worcester, MA 016051261. Office phone: 5088520238.
What is Dr. Diana Slawniak's NPI?
Dr. Diana Slawniak's National Provider Identifier (NPI) is 1700421526, issued by NPPES.
Does Dr. Diana Slawniak accept Medicare assignment?
Yes. Dr. Diana Slawniak accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Diana Slawniak 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); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.