Active NPI 1497314397 Individual Practitioner Male Practitioner

Marcus Larrieu , APN

Nurse Practitioner • Oak Lawn, IL

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Marcus Larrieu, APN is a certified Nurse Practitioner practicing in Oak Lawn, IL. With approximately 8 years of clinical experience since completing medical education in 2018, Marcus Larrieu delivers high-quality medical care to the local community at 10837 S CICERO AVE.

Marcus Larrieu maintains professional affiliations with Physicians Immediate Care North Chicago Llc, Harvey Emergency Physicians Pllc and accepts Medicare assignment.

Frequently performed procedures and clinical services include emergency department visit with moderate level of medical decision making, emergency department visit with low level of medical decision making, detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19). Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

10837 S Cicero Ave

Oak Lawn, IL 604536458

Telephone 7736367575

Associated Practice Facility / Clinic

🏢 Midamerica Cardiovascular Consultants, Ltd Facility NPI 1528165768

Medicare Profile & Education

Medical School

Other

Graduation Year

2018

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Nurse Practitioner in Oak Lawn, IL

Experienced Practitioner (5-10 Yrs)

Practitioner Clinical Experience

8 Yrs +0.1 yrs vs City Avg

City Avg: 7.9 Yrs

State Avg: 10.4 Yrs

Regional Practice Density

93 Specialists

Practicing in Oak Lawn, IL (4929 Statewide)

Telehealth Adoption Rate

15.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

92.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Larrieu (8 Years) 8 Yrs

Oak Lawn Specialty Average (7.9 Years) 7.9 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99284 Emergency department visit with moderate level of medical decision making	44	43	$1307.00	$108.99
99283 Emergency department visit with low level of medical decision making	19	19	$874.00	$64.12

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
87811 Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19)	43	41	$65.00	$40.55
99213 Established patient office or other outpatient visit, typically 15 minutes	42	39	$125.00	$74.64
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	39	39	$185.00	$95.68
87804 Detection test by immunoassay with direct visual observation for influenza virus	38	19	$25.00	$16.22
71046 X-ray of chest, 2 views	21	21	$63.05	$9.64
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	17	17	$187.82	$107.61
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	13	13	$25.00	$16.20
81003 Automated urinalysis test	13	13	$15.69	$2.20

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
87811 Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19)	54	52	$65.00	$40.60
99213 Established patient office or other outpatient visit, typically 15 minutes	49	46	$122.00	$74.98
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	47	47	$185.00	$93.38
87502 Detection test by nucleic acid for multiple types influenza virus	31	30	$175.00	$94.07
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	27	24	$182.00	$105.21
U0002 2019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19), any technique, multiple types or subtypes (includes all targets), non-cdc	27	26	$100.00	$50.45
71046 X-ray of chest, 2 views	19	19	$63.11	$10.77
87651 Detection test for Strep (Streptococcus, group A)	18	18	$55.00	$34.45
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$281.00	$138.47
81003 Automated urinalysis test	17	16	$15.29	$2.20

Medical Specialties & State Licenses

Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

State License IL 209.019399

(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.

Hospital & Practice Group Affiliations

Harvey Emergency Physicians Pllc

1600 Torrence Ave, Calumet City, IL 604095430

Phone: 9549395000

Physicians Immediate Care North Chicago Llc

350 N Bradley Blvd, Bradley, IL 609151221

Phone: 8153489320

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

9 Associated Practitioners

Dr. Bruce Abramowitz , MD, FACC

Internal Medicine - Cardiovascular Disease

NPI 1013918473

Doctor of Medicine (M.D.), FACC

Dr. Shrikar Iragavarapu , MD

Internal Medicine - Cardiovascular Disease

NPI 1215630520

Doctor of Medicine (M.D.)

Dr. Jeffrey Neiger , MD

Internal Medicine - Clinical Cardiac Electrophysiology

NPI 1275719072

Doctor of Medicine (M.D.)

Courtney Remezas , APN

Nurse Practitioner

NPI 1285296905

Advanced Practice Nurse

Dr. Pierrot Abi Mansour , MD

Internal Medicine - Cardiovascular Disease

NPI 1285627166

Doctor of Medicine (M.D.)

Michelle Elkhatib , RN, FNP-BC

Nurse Practitioner - Family

NPI 1538933254

Registered Nurse, Family Nurse Practitioner (Board Certified)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events

✅

NPI Profile Active June 13, 2019

NPI status registered as active in NPPES database

📍

Updated Practice Location June 13, 2019

Registered at 10837 S CICERO AVE, OAK LAWN, IL 604536458 (Tel: 7736367575)

📍

Updated Business Mailing Address June 13, 2019

Registered at 2922 IMPERIAL CT, FLOSSMOOR, IL 604222210 (Tel: 7733188286)

👤

Provider Name / Credentials Updated June 13, 2019

Recorded as MARCUS LARRIEU, APN

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 13, 2019

Nurse Practitioner (License #209.019399 in IL)

🟢

Initial NPI Registration & Enumeration June 13, 2019

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

NPI Number: 1497314397

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: June 13, 2019

Last Update: June 13, 2019

Sole Proprietor: No

Update or Correct Profile

Mailing Address

2922 Imperial Ct

Flossmoor, IL 604222210

Phone: 7733188286

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.