DR. ISAAC MAYEFSKY MD
NPI 1386261295
Hospitalist in Park Ridge, IL

Q: What is Isaac Mayefsky's NPI number?

The NPI number for Isaac Mayefsky is 1386261295. It was assigned to this individual provider in the NPPES registry on June 26, 2020.

Q: What is Isaac Mayefsky's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Q: When was this NPI record last updated?

The NPPES record for Isaac Mayefsky was last updated on August 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.

Active since June 26, 2020PECOS Enrolled

1675 DEMPSTER ST, PARK RIDGE, IL 60068(847) 723-2210 Get Directions Write a Review

NPPES record last updated: August 5, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 5, 2025, Jan 13, 2023, Jun 26, 2020 (3 updates tracked since 2020).

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About Dr. Isaac Mayefsky Md NPPES

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

DR. ISAAC MAYEFSKY MD (NPI 1386261295) is an individual hospitalist provider in Park Ridge, Illinois, licensed in Illinois (036-175344) and active in the NPI registry since June 2020. He is enrolled in Medicare PECOS and maintains a secondary practice location in Oak Lawn.

NPPES Registry Identity

NPI1386261295

Entity TypeIndividualMale

Primary Taxonomy208M00000X

Provider Legal NameDR. ISAAC MAYEFSKYCredential: MD

Location Address1675 DEMPSTER STPark Ridge, IL 60068-1110

Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900

Phone(847) 723-2210

Sole ProprietorNo

Enumeration DateJune 26, 2020

Last NPPES UpdateAugust 5, 20253 updates tracked since enumeration

NPPES CertifiedAugust 5, 2025

✔ NPI 1386261295 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in IL · 036-175344

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedPediatricsTaxonomy 208000000X · License 036.175344 (IL)

1675 DEMPSTER ST, Park Ridge, IL 60068

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Secondary Practice Location 1

Location 14440 W 95th St Ste 2177HOak Lawn, IL 60453-2600 · Phone (708) 684-5341 · Fax (708) 684-4716

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Isaac Mayefsky Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Isaac Mayefsky reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Lutheran General Hospital

0.1 mi

Cardiovascular Disease

1775 DEMPSTER ST
Park Ridge, IL 60068

Reassigned Medicare billing, Illinois enrollment
Medicare enrollment name: Advocate Health And Hospitals Corporation
4,870 clinicians in this Medicare group

NPI 1801809306 (847) 723-2210

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60068 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

$138.86 typical visit price

range $60.08 – $183.39

Typical copayment $34.71 (range $15.02 – $45.84)

Most-billed visit code 99204

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 20

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

KYUBIN KYUNG DO

Pediatrics

1675 DEMPSTER ST
PARK RIDGE, IL 60068

Cook County (847) 318-9300

DR. NOUR AKHRAS M.D.

Pediatrics

1675 DEMPSTER ST
PARK RIDGE, IL 60068

Cook County (847) 318-9300

DR. JURAT SINGH RAJPAL M.D.

Pediatrics (Pediatric Nephrology)

1675 DEMPSTER ST, SECOND FLOOR
PARK RIDGE, IL 60068

Cook County (847) 318-9330

DR. CHRISTOPHER M JAMERSON M.D.

Pediatrics

1675 DEMPSTER ST, YACKTMAN PAVILION
PARK RIDGE, IL 60068

Cook County (847) 723-9557

SUSAN MICHELE UNFER M.D.

Pediatrics

1675 DEMPSTER ST
PARK RIDGE, IL 60068

Cook County (847) 318-9300

DR. WILLIAM RICHARD GOODELL M.D.

Pediatrics (Pediatric Hematology-Oncology)

1675 DEMPSTER ST, 2ND FLOOR
PARK RIDGE, IL 60068

Cook County (847) 723-9400

RABIAH BASITH

Pediatrics

1675 DEMPSTER ST
PARK RIDGE, IL 60068

Cook County (847) 318-9300

JASPER KUHN MD

Pediatrics

1675 DEMPSTER ST
PARK RIDGE, IL 60068

Cook County (847) 723-2210

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 Isaac Mayefsky's NPI number?

The NPI number for Isaac Mayefsky is 1386261295. It was assigned to this individual provider in the NPPES registry on June 26, 2020.

Where is Isaac Mayefsky located?

Isaac Mayefsky practices at 1675 Dempster St, Park Ridge, IL 60068. The listed phone number is (847) 723-2210.

What is Isaac Mayefsky's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Isaac Mayefsky enrolled in Medicare?

Yes. Isaac Mayefsky is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Isaac Mayefsky's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Isaac Mayefsky reassigns Medicare benefits to Lutheran General Hospital (Park Ridge, IL). The 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 Isaac Mayefsky's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Isaac Mayefsky was last updated on August 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.