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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARGARITA KOS PMHNP-BC
NPI 1477974525
Nurse Practitioner - Psychiatric/Mental Health in Chicago, IL

Active since December 16, 2013PECOS EnrolledAccepts Medicare Assignment
4753 N BROADWAY ST STE 403, CHICAGO, IL 60640(773) 989-2780(833) 972-0865 Get Directions Write a Review

NPPES record last updated: September 25, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 25, 2026, Jun 1, 2026 (2 updates tracked since 2026).

About Margarita Kos Pmhnp-bc NPPES

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

MARGARITA KOS PMHNP-BC (NPI 1477974525) is an individual psychiatric/mental health provider in Chicago, Illinois, licensed in Illinois (277001467) and active in the NPI registry since December 2013. She is enrolled in Medicare PECOS, maintains a secondary practice location in Plymouth, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1477974525
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMARGARITA KOSCredential: PMHNP-BC
Location Address4753 N BROADWAY ST STE 403Chicago, IL 60640-7910
Mailing Address4753 N Broadway St Ste 403Chicago, IL 60640-7910 · (773) 989-2780 · Fax (833) 972-0865
Phone(773) 989-2780
Fax(833) 972-0865
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateDecember 16, 2013
Last NPPES UpdateSeptember 25, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 25, 2026
✔ NPI 1477974525 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
Licenses✔ Licensed in IL · 277001467✔ Licensed in MN · 14470
4753 N BROADWAY ST STE 403, Chicago, IL 60640
Open in Google Maps ↗

Secondary Practice Location 1

Location 14100 Berkshire Ln N Ste 250Plymouth, MN 55446-3888 · Phone (612) 223-8898 · Fax (612) 223-8899

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Margarita Kos Pmhnp-bc 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 ID4789817099
PECOS Enrollment IDI20140512000379
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.

Medicare Billing Reassignments

5

Medicare enrollment records show Margarita Kos reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Optum Behavioral Care Of Colorado, P.C.
Same address
Clinical
4753 N BROADWAY ST STE 403
Chicago, IL 60640
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Optum Behavioral Care Of Colorado PC
  • 6 clinicians in this Medicare group
NPI 1023888450 (704) 506-6267
The Josselyn Center
11 mi
Mental Health (Including Community Mental Health Center)
495 CENTRAL AVE
Northfield, IL 60093
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: The Josselyn Center Nfp
  • 138 clinicians in this Medicare group
NPI 1881276814 (847) 441-5600
Midwest Anesthesiologists, Ltd.
17 mi
Interventional Pain Medicine
4440 W 95TH ST
Oak Lawn, IL 60453
  • Reassigned Medicare billing, Illinois enrollment
  • 93 clinicians in this Medicare group
NPI 1447209390 (708) 684-8000
Midwest Interventional Pain Solutions LLC
19 mi
Pain Medicine
10258 SOUTHWEST HWY STE B
Chicago Ridge, IL 60415
  • Reassigned Medicare billing, Illinois enrollment
  • 4 clinicians in this Medicare group
NPI 1144739582 (708) 571-3669
Paragon Clinical LLC
20 mi
Nurse Practitioner
1333 BURR RIDGE PKWY STE 200
Burr Ridge, IL 60527
  • Reassigned Medicare billing, Illinois enrollment
  • 183 clinicians in this Medicare group
NPI 1114139946 (630) 832-1775

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

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.
42 services13 patients
Psychotherapy with evaluation and management visit, 30 minutes 90833
Psychotherapy with evaluation and management is a 30-minute session where a mental health professional talks with you about your concerns and feelings. They assess your mental health, provide support, and manage your treatment plan to help improve your well-being.
29 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60640 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
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
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.

Other Providers at the Same Location NPPES 6

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

DR. ANDREW WANG M.D.
Psychiatry & Neurology (Psychiatry)
4753 N BROADWAY ST STE 403
CHICAGO, IL 60640
Cook County (773) 989-2780
OPTUM BEHAVIORAL CARE OF COLORADO, P.C.
Psychologist (Clinical)
4753 N BROADWAY ST STE 403
CHICAGO, IL 60640
Cook County (704) 506-6267
JENNIFER PHAN
Psychiatry & Neurology (Psychiatry)
4753 N BROADWAY ST STE 403
CHICAGO, IL 60640
Cook County (773) 989-2780
ANJUM F KHAN NP
Nurse Practitioner
4753 N BROADWAY ST STE 403
CHICAGO, IL 60640
Cook County (773) 989-2780
MS. SAMANTHA LEIGH KARREL LCSW
Social Worker (Clinical)
4753 N BROADWAY ST STE 403
CHICAGO, IL 60640
Cook County (739) 892-7807
GIANG DIN NGUYEN
Nurse Practitioner (Psychiatric/Mental Health)
4753 N BROADWAY ST STE 403
CHICAGO, IL 60640
Cook County (773) 989-2780

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 Margarita Kos's NPI number?

The NPI number for Margarita Kos is 1477974525. It was assigned to this individual provider in the NPPES registry on December 16, 2013.

Where is Margarita Kos located?

Margarita Kos practices at 4753 N Broadway St Ste 403, Chicago, IL 60640. The listed phone number is (773) 989-2780.

What is Margarita Kos's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Margarita Kos enrolled in Medicare?

Yes. Margarita Kos 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.

Which organizations bill Medicare for Margarita Kos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Margarita Kos reassigns Medicare benefits to 5 organizations: Optum Behavioral Care Of Colorado, P.C. (Chicago, IL), The Josselyn Center (Northfield, IL), Midwest Anesthesiologists, Ltd. (Oak Lawn, IL), Midwest Interventional Pain Solutions LLC (Chicago Ridge, IL) and Paragon Clinical LLC (Burr Ridge, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Margarita Kos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Margarita Kos accept?

Health plans from Oscar Health and UnitedHealthcare list Margarita Kos 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 Margarita Kos was last updated on September 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 36 days 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.