Rachel Obrien, AGNP
NPI 1003396334 · Nurse Practitioner · Saint Louis, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rachel Obrien, AGNP is a Nurse Practitioner provider in Saint Louis, MO (NPI 1003396334).
Provider details
- NPI number
- 1003396334
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- AGNP
- Sex
- Female
- Sole proprietor
- No
- License
- 2018030046 (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
7 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
347 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 | 216 | $102 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 75 | $13 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 23 | $72 |
| Telephone Medical Discussion With Physician, 5-10 Minutes99441 | 22 | $45 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 11 | $137 |
Typical Medicare-allowed amounts for these services range $13–$137 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Hyclate | 257 | 64 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 171 | 46 |
| Cefadroxil | 93 | 26 |
| Methenamine Hippurate | 92 | 16 |
| Amoxicillin | 88 | 25 |
| Cephalexin | 87 | 25 |
| Fluconazole | 87 | 24 |
| Azithromycin | 80 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$240 across 12 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
- 2018-08-16
- Last updated
- 2025-04-21
Frequently asked questions
- What is Rachel Obrien's NPI number?
- Rachel Obrien's National Provider Identifier (NPI) is 1003396334, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rachel Obrien's specialty?
- Rachel Obrien is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Rachel Obrien located?
- Rachel Obrien's practice location on file with NPPES is 620 S Taylor Ave, Saint Louis, MO 63110-1035.
- What is Rachel Obrien's phone number?
- The practice phone number listed in the NPPES registry for Rachel Obrien is (314) 362-9098.
- Does Rachel Obrien accept Medicare?
- Rachel Obrien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rachel Obrien's NPI active?
- Yes — Rachel Obrien's NPI (1003396334) is active in the NPPES registry as of the last update on 2025-04-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.