1. Home
  2. Directory
  3. Illinois
  4. Chicago
  5. Physician Assistant
  6. NPI Profile

MAYSON LYN MARCY PA-C
NPI 1134828221
Physician Assistant in Chicago, IL

Active since February 27, 2023PECOS Enrolled
2418 N ASHLAND AVE, CHICAGO, IL 60614(773) 900-8330(312) 761-1855 Get Directions Write a Review

NPPES record last updated: October 3, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 13, 2023, Feb 27, 2023 (2 updates tracked since 2023).

About Mayson Lyn Marcy Pa-c NPPES

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

MAYSON LYN MARCY PA-C (NPI 1134828221) is an individual physician assistant in Chicago, Illinois, licensed in Illinois (085011338) and active in the NPI registry since February 2023. She is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Central Dupage Hospital, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1134828221
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMAYSON LYN MARCYCredential: PA-C
Location Address2418 N ASHLAND AVEChicago, IL 60614-2021
Mailing Address868 N Wells St Apt 903Chicago, IL 60610-3675 · (615) 440-1283
Phone(773) 900-8330
Fax(312) 761-1855
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateFebruary 27, 2023
Last NPPES UpdateOctober 3, 20252 updates tracked since enumeration
NPPES CertifiedOctober 3, 2025
✔ NPI 1134828221 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in IL · 085011338
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
2418 N ASHLAND AVE, Chicago, IL 60614
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mayson Lyn Marcy Pa-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9133580954
PECOS Enrollment IDI20250905001191
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 7

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 low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
81 services61 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
62 services62 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
61 services61 patients
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza 87428
This test uses a method called immunoassay to identify severe acute respiratory syndrome coronavirus and influenza. It works by detecting specific proteins (antigens) in a sample, like a nasal swab. It's a powerful tool in diagnosing these viral infections.
32 services25 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
20 services15 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
16 services16 patients

Hospital Affiliations CMS Care Compare

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

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60614 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
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
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 3

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

INNOVATIVE MEDSPA PLLC
Physical Medicine & Rehabilitation
2418 N ASHLAND AVE
CHICAGO, IL 60614
Cook County (773) 900-8330
MR. ROBERT WILLIAM RADTKE III PA-C
Physician Assistant
2418 N ASHLAND AVE
CHICAGO, IL 60614
Cook County (773) 900-8330
CARLY MIROWITZ
Physician Assistant (Medical)
2418 N ASHLAND AVE
CHICAGO, IL 60614
Cook County (773) 900-8330

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 Mayson Marcy's NPI number?

The NPI number for Mayson Marcy is 1134828221. It was assigned to this individual provider in the NPPES registry on February 27, 2023.

Where is Mayson Marcy located?

Mayson Marcy practices at 2418 N Ashland Ave, Chicago, IL 60614. The listed phone number is (773) 900-8330.

What is Mayson Marcy's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Mayson Marcy enrolled in Medicare?

Yes. Mayson Marcy is registered in the Medicare PECOS enrollment system.

Is Mayson Marcy affiliated with any hospitals?

According to CMS data, Mayson Marcy is affiliated with Northwestern Medicine Central Dupage Hospital.

When was this NPI record last updated?

The NPPES record for Mayson Marcy was last updated on October 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.