Brian Brennan, FNP-C
NPI 1487298725 · Family Nurse Practitioner · Saint Louis, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Brennan, FNP-C is a Family Nurse Practitioner provider in Saint Louis, MO (NPI 1487298725).
Provider details
- NPI number
- 1487298725
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Male
- Sole proprietor
- No
- License
- 2019001501 (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
6 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
101 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 83 | $103 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 18 | $72 |
Typical Medicare-allowed amounts for these services range $72–$103 (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 · 76 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 77 | 23 |
| Amlodipine Besylate | 75 | 20 |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 68 | — |
| Lisinopril | 62 | 17 |
| Gabapentin | 60 | 11 |
| Alprazolam | 54 | 11 |
| Dolutegravir Sodiumbrand: Tivicay |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,887 across 155 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 (2)
- 24 N Sprigg StCape Girardeau, MO 63701-5733Phone: (314) 652-0100
- 3225 N Florissant AveSaint Louis, MO 63107-3521Phone: (314) 652-0100
Registry dates
- Enumerated
- 2019-10-30
- Last updated
- 2026-04-07
- Certified
- 2026-04-07
Frequently asked questions
- What is Brian Brennan's NPI number?
- Brian Brennan's National Provider Identifier (NPI) is 1487298725, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Brennan's specialty?
- Brian Brennan is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Brian Brennan located?
- Brian Brennan's practice location on file with NPPES is 6155 S Grand Blvd, Saint Louis, MO 63111-2319.
- What is Brian Brennan's phone number?
- The practice phone number listed in the NPPES registry for Brian Brennan is (314) 652-0100.
- Does Brian Brennan accept Medicare?
- Brian Brennan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Brennan's NPI active?
- Yes — Brian Brennan's NPI (1487298725) is active in the NPPES registry as of the last update on 2026-04-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.