Audrey Brennan, FNP-C
NPI 1679231690 · Nurse Practitioner · Alton, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Audrey Brennan, FNP-C is a Nurse Practitioner provider in Alton, IL (NPI 1679231690).
Provider details
- NPI number
- 1679231690
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 2021048680 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
4 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
89 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 76 | $75 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 13 | $106 |
Typical Medicare-allowed amounts for these services range $75–$106 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levetiracetam | 77 | 25 |
| Memantine Hcl | 74 | 31 |
| Donepezil Hcl | 67 | 27 |
| Sumatriptan Succinate | 49 | — |
| Gabapentin | 38 | 12 |
| Topiramate | 35 | 17 |
| Lamotrigine | 30 | — |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$800 across 38 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (3)
- 1701 Lacey StCape Girardeau, MO 63701-5230Phone: (573) 334-4822
- 371 S Broadview StCape Girardeau, MO 63703-5761Phone: (573) 331-7830
- 1225 Graham Rd Ste 232cFlorissant, MO 63031-8012Phone: (618) 466-8666
Registry dates
- Enumerated
- 2021-12-07
- Last updated
- 2024-06-12
- Certified
- 2024-06-12
Frequently asked questions
- What is Audrey Brennan's NPI number?
- Audrey Brennan's National Provider Identifier (NPI) is 1679231690, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Audrey Brennan's specialty?
- Audrey Brennan is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Audrey Brennan located?
- Audrey Brennan's practice location on file with NPPES is 4 Memorial Dr Ste 230, Alton, IL 62002-6704.
- What is Audrey Brennan's phone number?
- The practice phone number listed in the NPPES registry for Audrey Brennan is (618) 465-8666.
- Does Audrey Brennan accept Medicare?
- Audrey Brennan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Audrey Brennan's NPI active?
- Yes — Audrey Brennan's NPI (1679231690) is active in the NPPES registry as of the last update on 2024-06-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.