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DR. PETER S. YOON M.D.
NPI 1417905944
Internal Medicine in Deerfield, IL

Active since May 05, 2006PECOS EnrolledAccepts Medicare Assignment
350 S WAUKEGAN RD STE 100&200, DEERFIELD, IL 60015(847) 535-7157(224) 271-4332 Get Directions Write a Review

NPPES record last updated: December 1, 2023. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Feb 26, 2021, Jan 18, 2019 (2 updates tracked since 2019).

About Dr. Peter S. Yoon M.d. NPPES

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

DR. PETER S. YOON M.D. (NPI 1417905944) is an individual internal medicine provider in Deerfield, Illinois, licensed in Illinois (036111844) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Northshore University Healthsystem - Evanston Hospital, and maintains a secondary practice location in Lombard.

NPPES Registry Identity

NPI1417905944
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. PETER S. YOONCredential: M.D.
Location Address350 S WAUKEGAN RD STE 100&200Deerfield, IL 60015-5239
Mailing Address1860 Paysphere CirChicago, IL 60674-5371 · (630) 469-2000
Phone(847) 535-7157
Fax(224) 271-4332
Sole ProprietorNo
Medical School CMSUniversity Of Illinois College Of Med (chi/peor/rock/chm-urb)Graduated 2002
Enumeration DateMay 5, 2006
Last NPPES UpdateDecember 1, 20232 updates tracked since enumeration
NPPES CertifiedDecember 1, 2023
✔ NPI 1417905944 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 036111844
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedSpecialistTaxonomy 174400000X · License 036-111844 (IL)
350 S WAUKEGAN RD STE 100&200, Deerfield, IL 60015
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Secondary Practice Location 1

Location 12340 S Highland Ave, Suite 210Lombard, IL 60148-5371 · Phone (630) 932-2020 · Fax (630) 932-4688

Other Identifiers 1

Medicaid036-111844IL

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

Dr. Peter S. Yoon M.d. 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 ID8022057785
PECOS Enrollment IDI20050502000905
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 Peter Yoon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Northwestern Medical Faculty Foundation
23 mi
Multi-Specialty
DEPT 5777
Carol Stream, IL 60122
  • Reassigned Medicare billing, Illinois enrollment
  • 4,817 clinicians in this Medicare group
NPI 1346235314 (855) 694-2866

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 13

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.
368 services232 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.
184 services145 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.
153 services153 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.
58 services53 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
42 services42 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.
27 services27 patients

Hospital Affiliations CMS Care Compare 4

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

Northshore University Healthsystem - Evanston Hospital

Acute Care Hospitals · Evanston, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140010
Location2650 Ridge AveEvanston, IL 60201 · Cook County
Emergency services Birthing friendly

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 60015 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
$137.43 typical visit price
range $59.81 – $181.38
Typical copayment $34.35 (range $14.95 – $45.34)
Most-billed visit code 99204
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.

Reported Quality Measures

Medication Reconciliation Post-Discharge
The percentage of discharges from any inpatient facility (e.g. hospital, skilled nursing facility, or rehabilitation facility) for patients 18 years and older of age seen within 30 days following discharge in the office by the physician, prescribing…
Patients 65+: 100% · 35 patients
100%35 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 7

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
18 suppliers42 claims86 services$5.54 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
12 suppliers22 claims22 services$0.93 avg. paid by Medicare
Enteral feeding supply kit; syringe fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4034
Other-Enteral and Parenteral · category OB006N
1 supplier11 claims165 services$2.77 avg. paid by Medicare
Enteral formula, nutritionally complete, for special metabolic needs, excludes inherited disease of metabolism, includes altered composition of proteins, fats, carbohydrates, vitamins and/or minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4154
Other-Enteral and Parenteral · category OB006N
1 supplier11 claims5,580 services$0.59 avg. paid by Medicare
Lightweight wheelchair K0003
DME-Wheelchairs · category DD000N
1 supplier11 claims11 services$22.64 avg. paid by Medicare
Elevating leg rests, pair (for use with capped rental wheelchair base) K0195
DME-Wheelchairs · category DD021N
1 supplier11 claims11 services$6.30 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 3

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

MS. LISA MERLE PECK M.D.
Internal Medicine
350 S WAUKEGAN RD STE 100&200
DEERFIELD, IL 60015
Lake County (847) 535-7157
RACHEL LAUBER APRN, CNP
Nurse Practitioner
350 S WAUKEGAN RD STE 100&200
DEERFIELD, IL 60015
Lake County (312) 695-4525
MELISSA BROOK ZIMMERMAN MD, MPH
Pediatrics
350 S WAUKEGAN RD STE 100&200
DEERFIELD, IL 60015
Lake County (847) 535-7994

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 Peter Yoon's NPI number?

The NPI number for Peter Yoon is 1417905944. It was assigned to this individual provider in the NPPES registry on May 5, 2006.

Where is Peter Yoon located?

Peter Yoon practices at 350 S Waukegan Rd Ste 100&200, Deerfield, IL 60015. The listed phone number is (847) 535-7157.

What is Peter Yoon's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Peter Yoon enrolled in Medicare?

Yes. Peter Yoon 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 organization bills Medicare for Peter Yoon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Peter Yoon reassigns Medicare benefits to Northwestern Medical Faculty Foundation (Carol Stream, 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 Peter Yoon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Peter Yoon affiliated with any hospitals?

According to CMS data, Peter Yoon is affiliated with Northshore University Healthsystem - Evanston Hospital, Northwestern Lake Forest Hospital, Northwestern Medicine Central Dupage Hospital and Northwestern Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Peter Yoon was last updated on December 1, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.