DR. JONATHAN WARREN MD
NPI 1871519124
Internal Medicine - Sleep Medicine in Joliet, IL
NPI Status: Active since July 13, 2006
Contact Information
2201 GLENWOOD AVE
JOLIET, IL
ZIP 60435
Phone: (815) 773-9090
Fax: (855) 705-5544
- NPI Profile Information
- Primary Taxonomy
- Secondary Taxonomies
- Insurance Plans Accepted
- Secondary Locations
- Medicare Participation & PECOS Status
- Areas of Expertise
- Durable Medical Equipment
- Physician Visit Costs
- Quality Reporting
- Hospital Affiliations - Privileges
- NPI Validation
- Other Providers Same Location
- Frequently Asked Questions
- Individual
- Male
- Years of Experience 45
- Internal Medicine
- Sleep Medicine
- Accepts Medicare Approved Payment
- PECOS Enrolled
- Medicare Quality Reporting
About JONATHAN WARREN
This page provides the complete NPI Profile along with additional information for Jonathan Warren, an internist established in Joliet, Illinois with a medical specialization in Internal Medicine, focusing in sleep medicine and more than 45 years of experience. He graduated from University Of Chicago, Pritzker School Of Medicine in 1981. The healthcare provider is registered in the NPI registry with number 1871519124 assigned on July 2006. The practitioner's primary taxonomy code is 207RS0012X with license number 036104101 (IL). The provider is registered as an individual and his NPI record was last updated March 2026.
- NPI
- 1871519124
- Provider Name
- DR. JONATHAN WARREN MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 2201 GLENWOOD AVE JOLIET, IL 60435
- Location Phone
- (815) 773-9090
- Location Fax
- (855) 705-5544
- Mailing Address
- 2201 GLENWOOD AVE JOLIET, IL 60435
- Mailing Phone
- (815) 773-9090
- Mailing Fax
- (855) 705-5544
- Medical School Name
- UNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE
- Graduation Year
- 1981
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 07-13-2006
- Last Update Date
- 03-03-2026
- Code Navigator
An internist like Jonathan Warren is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
Location Map
Secondary Locations
- 5999 New Wilke Rd Ste 107
Rolling Meadows, IL 60008
(847) 797-1933
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Internal Medicine Sleep Medicine
- Taxonomy Code
- 207RS0012X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 036104101
- License State
- IL
- Taxonomy Description
- An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 207R00000X | Allopathic & Osteopathic Physicians | Internal Medicine | 036-104101 (IL) |
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| 036104101 | MEDICAID (05) | IL |
Medicare Participation & PECOS Enrollment Status
Jonathan Warren is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.
Jonathan Warren is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
PECOS PAC ID: 9739156332
What is the PECOS Associate Control ID?
A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.PECOS Enrollment ID: I20040914000123
What is the Provider Enrollment ID?
The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.Accepts Medicare Assignment? Yes
What does it mean "accepts medicare assignment"?
When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes
Provider Referred Orders for Durable Medical Equipment, Devices & Supplies
The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.
Durable Medical Equipment
DME-Other DME (DE001N)
Tubing with integrated heating element for use with positive airway pressure device (HCPCS:A4604)
28 DME suppliers used 888 Medicare Claims 888 Services Paid
DME-Other DME (DE001N)
Full face mask used with positive airway pressure device, each (HCPCS:A7030)
25 DME suppliers used 576 Medicare Claims 576 Services Paid
DME-Other DME (DE001N)
Face mask interface, replacement for full face mask, each (HCPCS:A7031)
24 DME suppliers used 568 Medicare Claims 1604 Services Paid
DME-Other DME (DE001N)
Cushion for use on nasal mask interface, replacement only, each (HCPCS:A7032)
15 DME suppliers used 316 Medicare Claims 1831 Services Paid
DME-Other DME (DE001N)
Pillow for use on nasal cannula type interface, replacement only, pair (HCPCS:A7033)
18 DME suppliers used 152 Medicare Claims 857 Services Paid
DME-Other DME (DE001N)
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap (HCPCS:A7034)
24 DME suppliers used 507 Medicare Claims 507 Services Paid
DME-Other DME (DE001N)
Headgear used with positive airway pressure device (HCPCS:A7035)
32 DME suppliers used 610 Medicare Claims 610 Services Paid
DME-Other DME (DE001N)
Chinstrap used with positive airway pressure device (HCPCS:A7036)
8 DME suppliers used 27 Medicare Claims 27 Services Paid
DME-Other DME (DE001N)
Tubing used with positive airway pressure device (HCPCS:A7037)
19 DME suppliers used 125 Medicare Claims 125 Services Paid
DME-Other DME (DE001N)
Filter, disposable, used with positive airway pressure device (HCPCS:A7038)
32 DME suppliers used 943 Medicare Claims 5509 Services Paid
DME-Other DME (DE001N)
Filter, non disposable, used with positive airway pressure device (HCPCS:A7039)
15 DME suppliers used 89 Medicare Claims 89 Services Paid
DME-Other DME (DE001N)
Water chamber for humidifier, used with positive airway pressure device, replacement, each (HCPCS:A7046)
29 DME suppliers used 483 Medicare Claims 483 Services Paid
DME-Other DME (DE001N)
Respiratory assist device, bi-level pressure capability, without backup rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) (HCPCS:E0470)
5 DME suppliers used 43 Medicare Claims 43 Services Paid
DME-Other DME (DE001N)
Respiratory assist device, bi-level pressure capability, with back-up rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) (HCPCS:E0471)
3 DME suppliers used 81 Medicare Claims 81 Services Paid
DME-Other DME (DE001N)
Humidifier, heated, used with positive airway pressure device (HCPCS:E0562)
10 DME suppliers used 42 Medicare Claims 42 Services Paid
DME-Other DME (DE001N)
Humidifier, heated, used with positive airway pressure device (HCPCS:E0562)
5 DME suppliers used 169 Medicare Claims 172 Services Paid
DME-Other DME (DE001N)
Continuous positive airway pressure (cpap) device (HCPCS:E0601)
16 DME suppliers used 497 Medicare Claims 500 Services Paid
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Established patient office or other outpatient visit, 10-19 minutes
Established patient office or other outpatient visit, 20-29 minutes
Established patient office or other outpatient visit, 30-39 minutes
New patient office or other outpatient visit, 45-59 minutes
Sleep study in sleep lab (6 years or older)
Sleep study in sleep lab with continuous airway pressure (6 years or older)
Sleep study including heart rate, breathing, airflow, and effort
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.
This service was performed 52 times for 46 patientsThis 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.
This service was performed 79 times for 65 patientsThis 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.
This service was performed 414 times for 396 patientsThis 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.
This service was performed 51 times for 51 patientsA sleep study in a sleep lab is a non-invasive overnight test that monitors your body while you sleep. It helps doctors understand your sleep patterns and identify any issues like sleep apnea or insomnia. You'll be connected to equipment that tracks your heart rate, brain waves, breathing, and movements.
This service was performed 21 times for 21 patientsA sleep study in a sleep lab with continuous airway pressure is a test for individuals aged 6 and above. It monitors your sleep patterns to check for disorders like sleep apnea. Continuous airway pressure helps keep your airways open while you sleep, improving your breathing.
This service was performed 16 times for 16 patientsA sleep study monitors your heart rate, breathing patterns, airflow, and physical effort while you sleep. It helps identify sleep disorders by tracking your sleep stages and cycles. This data aids doctors in diagnosing and treating sleep-related issues.
This service was performed 17 times for 17 patientsPhysician Visit Costs
The typical physician office visit costs for Medicare beneficiaries in this area are: $34.35 for a new patient copayment and $26.26 for an established patient copayment.
The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.
For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.
The prices below reflect the costs for new and established patients in the 60435 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99204
- Average New Patient Price $137.43
- Minimum New Patient Price $59.81
- Maximum New Patient Price $181.38
- Average New Patient Copayment $34.35
- Minimum New Patient Copayment $14.95
- Maximum New Patient Copayment $45.34
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99214
- Average Established Patient Price $105.07
- Minimum Established Patient Price $19.15
- Maximum Established Patient Price $147.12
- Average Established Patient Copayment $26.26
- Minimum Established Patient Copayment $4.78
- Maximum Established Patient Copayment $36.78
* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.
Quality Reporting
The provider participated in CMS Quality Payment Program. The Quality Payment Program aims to improve population health, reduce costs and improve the care received by Medicare beneficiaries. The following quality measures meet Medicare's statistical reporting standards. Not all providers report the same information, because not all providers give the same services to patients. The quality information is just a snapshot of some the care providers give to their patients. Reporting more or less information is not a reflection of quality.
| Quality Measure | Performance | Number of Patients |
|---|---|---|
| Documentation of Current Medications in the Medical Record | 58% | 1984 |
| Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter. This list must include ALL known prescriptions, over-the-counters, herbals, and vitamin/mineral/dietary (nutritional) supplements AND must contain the medications' name, dosage, frequency and route of administration | ||
| e-Prescribing | 89% | 524 |
| At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology. | ||
| Medication Reconciliation | 98% | 1117 |
| The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician. | ||
| Patient-Specific Education | 95% | 1440 |
| The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician. | ||
| Provide Patient Access | 100% | 1440 |
| At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold certain information. | ||
| Secure Messaging | 0% | 1440 |
| For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure message sent by the patient (or the patient-authorized representative) during the performance period. | ||
| Security Risk Analysis | Yes | N/A |
| Conduct or review a security risk analysis in accordance with the requirements in 45 CFR 164.308(a)(1), including addressing the security (to include encryption) of ePHI data created or maintained by certified EHR technology in accordance with requirements in 45 CFR164.312(a)(2)(iv) and 45 CFR 164.306(d)(3), and implement security updates as necessary and correct identified security deficiencies as part of the MIPS eligible clinician's risk management process. | ||
| Sleep Apnea: Assessment of Sleep Symptoms | 100% | 1770 |
| Percentage of visits for patients aged 18 years and older with a diagnosis of obstructive sleep apnea that includes documentation of an assessment of sleep symptoms, including presence or absence of snoring and daytime sleepiness | ||
| Use of High-Risk Medications in the Elderly | 1% "Inverse Quality Measure" This is an inverse quality measure, a lower rate means the provider is rated better. | 387 |
| Percentage of patients 65 years of age and older who were ordered high-risk medications. Two rates are submitted. 1) Percentage of patients who were ordered at least one high-risk medication. 2) Percentage of patients who were ordered at least two of the same high-risk medication | ||
Find Provider Hospital Affiliations - Privileges
Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.
Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Jonathan Warren is affiliated with the following medical facilities:
| Hospital Name | Address | Phone | Hospital Type | Overall Rating |
|---|---|---|---|---|
| PRESENCE SAINT JOSEPH MEDICAL CENTER | 333 N MADISON ST JOLIET, IL 60435 | (815) 725-7133 | Acute Care Hospitals | |
| NORTHWEST COMMUNITY HOSPITAL 1 | 800 W CENTRAL ROAD ARLINGTON HEIGHTS, IL 60005 | (847) 618-1000 | Acute Care Hospitals |
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NPI NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1871519124, we treat the final digit (4) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 56 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 16 providers are registered at the same or a nearby location.
JOLIET, IL 60435
JOLIET, IL 60435
JOLIET, IL 60435
JOLIET, IL 60435
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1871519124, enumerated as an "individual" on July 13, 2006.
The provider is located at 2201 GLENWOOD AVE JOLIET, IL 60435 and the phone number is (815) 773-9090.
Internal Medicine with taxonomy code 207RS0012X and a focus in Sleep Medicine.
The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.
Jonathan Warren is affiliated with: PRESENCE SAINT JOSEPH MEDICAL CENTER and NORTHWEST COMMUNITY HOSPITAL 1.
