Nora O'Brien, ANP
NPI 1841613205 · Nurse Practitioner · Saint Louis, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nora O'Brien, ANP is a Nurse Practitioner provider in Saint Louis, MO (NPI 1841613205).
Provider details
- NPI number
- 1841613205
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ANP
- Sex
- Female
- Sole proprietor
- No
- License
- 2013020387 (MO)
Specialties & taxonomies
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
12 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
205 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 | 148 | $103 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 22 | $147 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 18 | $74 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 17 | $106 |
Typical Medicare-allowed amounts for these services range $74–$147 (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 · 72 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 388 | 126 |
| Amlodipine Besylate | 276 | 88 |
| Rosuvastatin Calcium | 168 | 55 |
| Levothyroxine Sodium | 151 | 46 |
| Hydrochlorothiazide | 122 | 40 |
| Lisinopril | 119 | 42 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$191 across 11 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
Registry dates
- Enumerated
- 2014-01-21
- Last updated
- 2014-01-21
Frequently asked questions
- What is Nora O'Brien's NPI number?
- Nora O'Brien's National Provider Identifier (NPI) is 1841613205, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nora O'Brien's specialty?
- Nora O'Brien is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nora O'Brien located?
- Nora O'Brien's practice location on file with NPPES is 625 S New Ballas Rd, Saint Louis, MO 63141-8253.
- What is Nora O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Nora O'Brien is (314) 251-1700.
- Does Nora O'Brien accept Medicare?
- Nora O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nora O'Brien's NPI active?
- Yes — Nora O'Brien's NPI (1841613205) is active in the NPPES registry as of the last update on 2014-01-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.