DR. DESLER JOHNSON JAVIER M.D.
NPI 1114218732
Internal Medicine in Chicago, IL

Active since April 30, 2011PECOS EnrolledAccepts Medicare Assignment
836 W WELLINGTON AVE, CHICAGO, IL 60657(773) 975-1600 Get Directions Write a Review

NPPES record last updated: March 5, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 5, 2025, Apr 25, 2022 (2 updates tracked since 2022).

About Dr. Desler Johnson Javier M.d. NPPES

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

DR. DESLER JOHNSON JAVIER M.D. (NPI 1114218732) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (036-135592) and active in the NPI registry since April 2011. He is enrolled in Medicare PECOS, is affiliated with Advocate Illinois Masonic Medical Center, and is a graduate of Other (2011).

NPPES Registry Identity

NPI1114218732
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. DESLER JOHNSON JAVIERCredential: M.D.
Location Address836 W WELLINGTON AVEChicago, IL 60657-5147
Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateApril 30, 2011
Last NPPES UpdateMarch 5, 20252 updates tracked since enumeration
NPPES CertifiedMarch 5, 2025
NPI 1114218732 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in IL · 036-135592
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.

836 W WELLINGTON AVE, Chicago, IL 60657

Accepted 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. Desler Johnson Javier 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 ID2860793023
PECOS Enrollment IDI20151214001486
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 3

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.

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.
29 services20 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
25 services25 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
19 services18 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 60657 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.

Emergency Medicine
836 W WELLINGTON AVE
CHICAGO, IL 60657
Speech-Language Pathologist
836 W WELLINGTON AVE
CHICAGO, IL 60657
Internal Medicine (Sleep Medicine)
836 W WELLINGTON AVE
CHICAGO, IL 60657
Nurse Anesthetist, Certified Registered
836 W WELLINGTON AVE
CHICAGO, IL 60657
Anesthesiology
836 W WELLINGTON AVE
CHICAGO, IL 60657
Anesthesiology
836 W WELLINGTON AVE
CHICAGO, IL 60657
Dietitian, Registered
836 W WELLINGTON AVE, FOOD AND NUTRITION DEPT.
CHICAGO, IL 60657
Nurse Practitioner
836 W WELLINGTON AVE
CHICAGO, IL 60657

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 Desler Javier's NPI number?

The NPI number for Desler Javier is 1114218732. It was assigned to this individual provider in the NPPES registry on April 30, 2011.

Where is Desler Javier located?

Desler Javier practices at 836 W Wellington Ave, Chicago, IL 60657. The listed phone number is (773) 975-1600.

What is Desler Javier's specialty?

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

Is Desler Javier enrolled in Medicare?

Yes. Desler Javier 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 Desler Javier accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Desler Javier 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 Desler Javier affiliated with any hospitals?

According to CMS data, Desler Javier is affiliated with Advocate Illinois Masonic Medical Center.

When was this NPI record last updated?

The NPPES record for Desler Javier was last updated on March 5, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.