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MS. RACHEL ERIN OBRIEN AGNP
NPI 1003396334
Nurse Practitioner in Saint Louis, MO

Active since August 16, 2018PECOS EnrolledAccepts Medicare Assignment
79.29/100
CMS Quality Rating
620 S TAYLOR AVE, DIV IM INFECTIOUS DISEASE, STE 100, SAINT LOUIS, MO 63110(314) 362-9098(314) 362-9851 Get Directions Write a Review

NPPES record last updated: April 21, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 9, 2024, Aug 16, 2018 (2 updates tracked since 2018).

About Ms. Rachel Erin Obrien Agnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. RACHEL ERIN OBRIEN AGNP (NPI 1003396334) is an individual nurse practitioner in Saint Louis, Missouri, licensed in Missouri (2018030046) and active in the NPI registry since August 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1003396334
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMS. RACHEL ERIN OBRIENCredential: AGNP
Location Address620 S TAYLOR AVE, DIV IM INFECTIOUS DISEASE, STE 100Saint Louis, MO 63110-1035
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 362-9098 · Fax (314) 362-9851
Phone(314) 362-9098
Fax(314) 362-9851
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateAugust 16, 2018
Last NPPES UpdateApril 21, 20252 updates tracked since enumeration
✔ NPI 1003396334 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in MO · 2018030046
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
620 S TAYLOR AVE, Saint Louis, MO 63110
Open in Google Maps ↗

Other Identifiers 1

Medicaid420060509MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cox HealthPlans.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ms. Rachel Erin Obrien Agnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5193077436
PECOS Enrollment IDI20181015001035
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
216 services158 patients
Telephone medical discussion with physician, 11-20 minutes 99442
This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.
23 services21 patients
Telephone medical discussion with physician, 5-10 minutes 99441
A telephone medical discussion with a physician is a brief, 5-10 minute call where you can discuss your health concerns. It's a convenient way to receive medical advice without needing to visit a clinic. It's important to prepare questions in advance to make the most of this time.
22 services20 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

79.29/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality71.46
Promoting Interoperability100
Improvement Activities40
Cost59.51

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ADITI RAMAKRISHNAN MD
Internal Medicine (Infectious Disease)
620 S TAYLOR AVE, DIV IM INFECTIOUS DISEASE, STE 100
SAINT LOUIS, MO 63110
St. Louis City (314) 747-1206
DR. CARLOS ROBERTO MEJIA CHEW MD
Internal Medicine (Infectious Disease)
620 S TAYLOR AVE, DIV IM INFECTIOUS DISEASE, STE 100
SAINT LOUIS, MO 63110
St. Louis City (314) 362-9098
DR. PATRICK BRYAN MAZI MD
Internal Medicine (Infectious Disease)
620 S TAYLOR AVE, DIV IM INFECTIOUS DISEASE, STE 100
SAINT LOUIS, MO 63110
St. Louis City (314) 747-1206
DR. JANE ALISON OHALLORAN MD
Internal Medicine (Infectious Disease)
620 S TAYLOR AVE, DIV IM INFECTIOUS DISEASE, STE 100
SAINT LOUIS, MO 63110
St. Louis City (314) 362-9098
DR. LAURA RENEE MARKS MD
Internal Medicine (Infectious Disease)
620 S TAYLOR AVE, DIV IM INFECTIOUS DISEASE, STE 100
SAINT LOUIS, MO 63110
St. Louis City (314) 362-9098
MS. KELLY EILIS LAVIN FNP
Nurse Practitioner (Family)
620 S TAYLOR AVE, DIV IM INFECTIOUS DISEASE, STE 100
SAINT LOUIS, MO 63110
St. Louis City (314) 747-1206
DR. PHILIP JENSEN BUDGE MD
Internal Medicine (Infectious Disease)
620 S TAYLOR AVE, DIV IM INFECTIOUS DISEASE, STE 100
SAINT LOUIS, MO 63110
St. Louis City (314) 362-9098
MS. SARAH ELIZABETH ALLEMAN FNP
Nurse Practitioner (Family)
620 S TAYLOR AVE, DIV IM INFECTIOUS DISEASE, STE 100
SAINT LOUIS, MO 63110
St. Louis City (314) 747-1206

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Rachel Obrien's NPI number?

The NPI number for Rachel Obrien is 1003396334. It was assigned to this individual provider in the NPPES registry on August 16, 2018.

Where is Rachel Obrien located?

Rachel Obrien practices at 620 S Taylor Ave Div Im Infectious Disease, Ste 100, Saint Louis, MO 63110. The listed phone number is (314) 362-9098.

What is Rachel Obrien's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Rachel Obrien enrolled in Medicare?

Yes. Rachel Obrien is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Rachel Obrien accept?

Health plans from Cox HealthPlans list Rachel Obrien as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Rachel Obrien was last updated on April 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.