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DR. ELISE BARRETT HALAJIAN MAYER DO
NPI 1669609897
Family Medicine in Chicago, IL

Active since June 15, 2009PECOS EnrolledAccepts Medicare Assignment
4600 N RAVENSWOOD AVE, 2ND FLOOR, CHICAGO, IL 60640(773) 561-7500(773) 561-7612 Get Directions Write a Review

NPPES record last updated: May 27, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 27, 2025, Nov 14, 2018 (2 updates tracked since 2018).

About Dr. Elise Barrett Halajian Mayer Do NPPES

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

DR. ELISE BARRETT HALAJIAN MAYER DO (NPI 1669609897) is an individual family medicine provider in Chicago, Illinois, licensed in Illinois (036.128660) and active in the NPI registry since June 2009. She is enrolled in Medicare PECOS, is affiliated with Advocate Illinois Masonic Medical Center, and is a graduate of Midwestern University, Chicago College Of Osteopathic Med (2009).

NPPES Registry Identity

NPI1669609897
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. ELISE BARRETT HALAJIAN MAYERCredential: DO
Location Address4600 N RAVENSWOOD AVE, 2ND FLOORChicago, IL 60640-4510
Mailing Address29373 Network PlChicago, IL 60673-4510 · (847) 390-5900
Phone(773) 561-7500
Fax(773) 561-7612
Sole ProprietorNo
Medical School CMSMidwestern University, Chicago College Of Osteopathic MedGraduated 2009
Enumeration DateJune 15, 2009
Last NPPES UpdateMay 27, 20252 updates tracked since enumeration
NPPES CertifiedMay 27, 2025
✔ NPI 1669609897 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in IL · 036.128660
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
4600 N RAVENSWOOD AVE, Chicago, IL 60640
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.Insurance ›

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

Dr. Elise Barrett Halajian Mayer Do 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 ID6204092869
PECOS Enrollment IDI20120725001017
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 5

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.
43 services36 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
33 services13 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
30 services23 patients
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.
21 services20 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
13 services13 patients

Hospital Affiliations CMS Care Compare

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

Advocate Illinois Masonic Medical Center

Acute Care Hospitals · Chicago, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140182
Location836 West Wellington AvenueChicago, IL 60657 · Cook County
Emergency services Birthing friendly

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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier12 claims12 services$14.44 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$61.89 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

DR. KERI LEAH FAIR M.D., PH.D.
Family Medicine
4600 N RAVENSWOOD AVE, 2ND FLOOR
CHICAGO, IL 60640
Cook County (773) 561-7500
DR. DAVID EUGENE KLEIN DO
Psychiatry & Neurology (Neurology)
4600 N RAVENSWOOD AVE
CHICAGO, IL 60640
Cook County (773) 561-7500
MEAGAN ROSE MCCORMICK DO
Family Medicine
4600 N RAVENSWOOD AVE
CHICAGO, IL 60640
Cook County (773) 561-7500
POOJA KANTHAWAR MD
Family Medicine
4600 N RAVENSWOOD AVE
CHICAGO, IL 60640
Cook County (773) 561-7500
MARIELA CANO M.D.
Family Medicine
4600 N RAVENSWOOD AVE, 2ND FLR
CHICAGO, IL 60640
Cook County (773) 561-7500
HEMISHA SANGANI DO
Family Medicine
4600 N RAVENSWOOD AVE
CHICAGO, IL 60640
Cook County (773) 561-7500
FARANAK NAJIBI M.D
Psychiatry & Neurology (Neurology)
4600 N RAVENSWOOD AVE
CHICAGO, IL 60640
Cook County (773) 561-7500
KIMBERLY ROWGHANI DO
Family Medicine
4600 N RAVENSWOOD AVE
CHICAGO, IL 60640
Cook County (773) 561-7500

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 Elise Halajian Mayer's NPI number?

The NPI number for Elise Halajian Mayer is 1669609897. It was assigned to this individual provider in the NPPES registry on June 15, 2009.

Where is Elise Halajian Mayer located?

Elise Halajian Mayer practices at 4600 N Ravenswood Ave 2nd Floor, Chicago, IL 60640. The listed phone number is (773) 561-7500.

What is Elise Halajian Mayer's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Elise Halajian Mayer enrolled in Medicare?

Yes. Elise Halajian Mayer 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.

What insurance does Elise Halajian Mayer accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Elise Halajian Mayer 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.

Is Elise Halajian Mayer affiliated with any hospitals?

According to CMS data, Elise Halajian Mayer is affiliated with Advocate Illinois Masonic Medical Center.

When was this NPI record last updated?

The NPPES record for Elise Halajian Mayer was last updated on May 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.