Doctor profile · Federal record
Dr. Dena Williams, MSN, APRN, FNP-BC
Family Nurse Practitioner (CMS: Nurse Practitioner) · Alton, IL
- NPI 1417648825
- Accepts Medicare
- 3 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1 Professional Dr Ste 120
Alton, IL 620025068
(618) 463-8555
Credentials & registration
- NPI registered
- May 2023 — 3 yrs on file
- Profile last updated
- May 23, 2023
- Year of graduation
- 2023 — 3 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State license (1)
- Illinois #209.027455
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1417648825. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
202
Distinct HCPCS
2
Medicare allowed
$14,391
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 184 | 144 | $75 | |
87428 |
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza | 18 | 18 | $30 |
In context: peer comparison
Among 13 peers in Alton Family Nurse Practitioner, average services per provider: 95. This provider delivers 2.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
47
Patients
44
Total drug cost
$992
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Doxycycline Hyclate | Generic | 21 | 20 | $321 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 15 | 13 | $564 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 11 | 11 | $108 |
Frequently asked questions
What is Dr. Dena Williams's medical specialty?
Dr. Dena Williams practices Family Nurse Practitioner in Alton, IL.
Where does Dr. Dena Williams practice?
Dr. Dena Williams practices at 1 Professional Dr Ste 120, Alton, IL 620025068. Office phone: 6184638555.
What is Dr. Dena Williams's NPI?
Dr. Dena Williams's National Provider Identifier (NPI) is 1417648825, issued by NPPES.
Does Dr. Dena Williams accept Medicare assignment?
Yes. Dr. Dena Williams accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Dena Williams commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (HCPCS 87428). Source: CMS Medicare Physician & Other Practitioners file.