Jonathan Warren, MD
NPI 1871519124 · Sleep Medicine (Internal Medicine) Physician · Joliet, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Warren, MD is a Sleep Medicine (Internal Medicine) Physician provider in Joliet, IL (NPI 1871519124).
Provider details
- NPI number
- 1871519124
- Entity type
- Individual
- Primary specialty
- Sleep Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036-104101 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
547 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 373 | $132 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 45 | $94 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 43 | $58 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 35 | $174 |
| Sleep Study Including Heart Rate, Breathing, Airflow, and Effort95806 | 23 | $80 |
| Sleep Study in Sleep Lab (6 Years Or Older) |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 54 | 16 |
| Lorazepam | 54 | 13 |
| Trazodone Hcl | 44 | 11 |
| Mirtazapine | 33 | — |
| Tramadol Hcl | 31 | — |
| Duloxetine Hcl | 22 | — |
| Escitalopram Oxalate | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$248 across 10 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 5999 New Wilke Rd Ste 107Rolling Meadows, IL 60008-4501Phone: (847) 797-1933Fax: (855) 709-5544
Registry dates
- Enumerated
- 2006-07-13
- Last updated
- 2026-03-03
- Certified
- 2026-03-03
Frequently asked questions
- What is Jonathan Warren's NPI number?
- Jonathan Warren's National Provider Identifier (NPI) is 1871519124, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Warren's specialty?
- Jonathan Warren is listed in the NPPES registry with a primary specialty of Sleep Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Warren located?
- Jonathan Warren's practice location on file with NPPES is 2201 Glenwood Ave, Joliet, IL 60435-5574.
- What is Jonathan Warren's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Warren is (815) 773-9090.
- Does Jonathan Warren accept Medicare?
- Jonathan Warren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Warren's NPI active?
- Yes — Jonathan Warren's NPI (1871519124) is active in the NPPES registry as of the last update on 2026-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.