MARIELLEN PATRICIA ANTMAN APN-CNP
NPI 1235271941
Nurse Practitioner - Adult Health in Lake Forest, IL

Active since February 12, 2007PECOS EnrolledAccepts Medicare Assignment
94.1/100
CMS Quality Rating
800 N WESTMORELAND RD, SUITE 205, LAKE FOREST, IL 60045(847) 735-8550(847) 535-8590 Get Directions Write a Review

NPPES record last updated: October 13, 2016. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mariellen Patricia Antman Apn-cnp NPPES

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

MARIELLEN PATRICIA ANTMAN APN-CNP (NPI 1235271941) is an individual adult health provider in Lake Forest, Illinois, licensed in Illinois (209.005116) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS, is affiliated with Northwestern Lake Forest Hospital, and is a graduate of Other (2003).

NPPES Registry Identity

NPI1235271941
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameMARIELLEN PATRICIA ANTMANCredential: APN-CNP
Location Address800 N WESTMORELAND RD, SUITE 205Lake Forest, IL 60045-1673
Mailing Address251 E Huron StChicago, IL 60611-2908 · (847) 735-8550 · Fax (847) 535-8590
Fax(847) 535-8590
Sole ProprietorNo
Medical School CMSOtherGraduated 2003
Enumeration DateFebruary 12, 2007
Last NPPES UpdateOctober 13, 2016
NPI 1235271941 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License Licensed in IL · 209.005116
Also ListedRegistered NurseTaxonomy 163W00000X · License 041202000 (IL)
Also ListedNurse PractitionerTaxonomy 363L00000X · License 209005116 (IL)
800 N WESTMORELAND RD, Lake Forest, IL 60045

Other Identifiers 4

OtherIL6304003IL · Medicare Ptan Loc 16
Other1720371669IL · Npi Group Practice
OtherIL6305003IL · Medicare Ptan Loc 15
OtherP01058711IL · Rrmc Ptan

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

Mariellen Patricia Antman Apn-cnp 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 ID5890754741
PECOS Enrollment IDI20041006000697
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 3

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 high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
352 services285 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
72 services70 patients
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.
19 services17 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northwestern Lake Forest Hospital

Acute Care Hospitals · Lake Forest, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140130
Location1000 N Westmoreland RoadLake Forest, IL 60045 · Lake County
Emergency services Birthing friendly

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140242
Location25 North Winfield RoadWinfield, IL 60190 · Du Page County
Emergency services Birthing friendly

Northwestern Memorial Hospital

Acute Care Hospitals · Chicago, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140281
Location251 E Huron StChicago, IL 60611 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60045 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
$93.02 typical visit price
range $59.81 – $181.38
Typical copayment $23.25 (range $14.95 – $45.34)
Most-billed visit code 99203
Established Patient
$105.07 typical visit price
range $19.15 – $147.12
Typical copayment $26.26 (range $4.78 – $36.78)
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.

94.1/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.59
Promoting Interoperability100
Improvement Activities40

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.

Internal Medicine
800 N WESTMORELAND RD, SUITE 100
LAKE FOREST, IL 60045
Surgery
800 N WESTMORELAND RD, SUITE 205
LAKE FOREST, IL 60045
Internal Medicine
800 N WESTMORELAND RD, SUITE 206
LAKE FOREST, IL 60045
Clinical Nurse Specialist
800 N WESTMORELAND RD
LAKE FOREST, IL 60045
Dermatology
800 N WESTMORELAND RD
LAKE FOREST, IL 60045
Ophthalmology
800 N WESTMORELAND RD, SUITE 206
LAKE FOREST, IL 60045
Internal Medicine (Gastroenterology)
800 N WESTMORELAND RD, SUITE 102
LAKE FOREST, IL 60045
Surgery
800 N WESTMORELAND RD, SUITE 205
LAKE FOREST, IL 60045

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 Mariellen Antman's NPI number?

The NPI number for Mariellen Antman is 1235271941. It was assigned to this individual provider in the NPPES registry on February 12, 2007.

Where is Mariellen Antman located?

Mariellen Antman practices at 800 N Westmoreland Rd Suite 205, Lake Forest, IL 60045. The listed phone number is (847) 735-8550.

What is Mariellen Antman's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Mariellen Antman enrolled in Medicare?

Yes. Mariellen Antman 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.

Is Mariellen Antman affiliated with any hospitals?

According to CMS data, Mariellen Antman is affiliated with Northwestern Lake Forest Hospital, Northwestern Medicine Central Dupage Hospital and Northwestern Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Mariellen Antman was last updated on October 13, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years 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.