Claire M Vargo , FNP
Nurse Practitioner • O Fallon, IL
Professional Overview & Biography Verified Profile Summary
Claire Vargo, FNP is a certified Nurse Practitioner practicing in O Fallon, IL. With approximately 10 years of clinical experience since completing medical education in 2016, Claire Vargo delivers high-quality medical care to the local community at 3 SAINT ELIZABETH BLVD STE 1800.
Claire Vargo maintains professional affiliations with Prairie Cardiovascular Consultants Ltd, Washington University Physicians In Illinois Inc and accepts Medicare assignment.
Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, initial hospital care with straightforward or low-level medical decision making, if using time, at least, established patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.
Practice Location & Contact Primary Location
3 Saint Elizabeth Blvd Ste 1800
O Fallon, IL 622691281
Medicare Profile & Education
Other
2016
✓ Accepts Assignment
In-Person Only
Specialty Benchmarks & Practice Insights
Comparative analytics for Nurse Practitioner in O Fallon, IL
Practicing in O Fallon, IL (4929 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Clinical Seniority & Experience Comparison
Performed Procedures & Service Volume
Top Medicare Part B procedures performed by this practitioner
| HCPCS Code & Description | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
|
217 | 88 | $219.35 | $67.53 |
|
99222
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
|
98 | 90 | $458.07 | $112.94 |
|
99213
Established patient office or other outpatient visit, typically 15 minutes
|
43 | 41 | $157.88 | $77.34 |
|
99231
Follow-up hospital inpatient care per day, typically 15 minutes
|
12 | 11 | $140.67 | $43.17 |
|
99212
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
|
12 | 12 | $112.00 | $47.73 |
Medical Specialties & State Licenses
CMS Verified: 2026-02-04NUCC Taxonomy Code: 363L00000X
(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.
NUCC Taxonomy Code: 363LF0000X
Definition to come...
Additional State Medicaid & Healthcare Payer Identifiers
Hospital & Practice Group Affiliations
Washington University Physicians In Illinois Inc
4 Memorial Dr, Alton, IL 620026704
Phone: 3147471171
Prairie Cardiovascular Consultants Ltd
3 Saint Elizabeth Blvd, O Fallon, IL 622691099
Phone: 6182336044
Secondary Practice Locations
4500 Memorial Dr, Div Medical Oncology
Belleville, IL 622265360
Phone: 8006472098
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Nurse Practitioner - Adult Health
Advanced Practice Registered Nurse
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Registered at 3 SAINT ELIZABETH BLVD STE 1800, O FALLON, IL 622691281 (Tel: 6182336044)
Registered at 3 SAINT ELIZABETH BLVD STE 1800, O FALLON, IL 622691281 (Tel: 6182336044)
Nurse Practitioner (License #209019577 in IL)
Registered at PO BOX 7412011, CHICAGO, IL 606742011 (Tel: 8006472098)
Recorded as CLAIRE VARGO, FNP
Registered at 4500 MEMORIAL DR, DIV MEDICAL ONCOLOGY, BELLEVILLE, IL 622265360 (Tel: 8006472098)
Registered at 660 S EUCLID AVE, MSC 8056-0910-01, SAINT LOUIS, MO 631101010 (Tel: 6186071340)
Registered at 4 MEMORIAL DR, STE 134, ALTON, IL 620026705 (Tel: 6186071340)
Registered at 660 S EUCLID AVE, CB 8056, SAINT LOUIS, MO 631101010 (Tel: 3147471171)
Recorded as CLAIRE MCAULIFFE, FNP
Registered at 35318 EAGLE WAY, CHICAGO, IL 606781353 (Tel: 3175284800)
NPI status registered as active in NPPES database
Registered at 3800 W 203RD ST STE 202, OLYMPIA FIELDS, IL 604611185 (Tel: 7086792233)
Registered at 416 S PENNSYLVANIA AVE, BELLEVILLE, IL 622203749 (Tel: 6186982505)
Recorded as CLAIRE MCAULIFFE, NP-C
Nurse Practitioner (License #209019577 in IL)
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
Verified patient ratings, medical care experiences, and facility photos
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NPI Administrative Meta
Mailing Address
3 Saint Elizabeth Blvd Ste 1800
O Fallon, IL 622691281
Phone: 6182336044
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