Cory Conniff, MD
NPI 1376539726 · Rheumatology Physician · Orland Park, IL
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cory Conniff, MD is a Rheumatology Physician provider in Orland Park, IL (NPI 1376539726).
Provider details
- NPI number
- 1376539726
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036-107529 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,035 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 | 904 | $131 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 801 | $17 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 526 | $132 |
| Administration of Non-Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96401 | 358 | $74 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 275 | $84 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 605 | 180 |
| Prednisone | 278 | 103 |
| Hydroxychloroquine Sulfate | 222 | 72 |
| Allopurinol | 140 | 43 |
| Tramadol Hcl | 115 | 22 |
| Duloxetine Hcl | 104 | 38 |
| Leflunomide | 86 | 29 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,719 across 107 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
Registry dates
- Enumerated
- 2005-09-21
- Last updated
- 2025-11-04
- Certified
- 2025-11-04
Frequently asked questions
- What is Cory Conniff's NPI number?
- Cory Conniff's National Provider Identifier (NPI) is 1376539726, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cory Conniff's specialty?
- Cory Conniff is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Cory Conniff located?
- Cory Conniff's practice location on file with NPPES is 11540 183rd Pl # Ne-Nw, Orland Park, IL 60467-9496.
- What is Cory Conniff's phone number?
- The practice phone number listed in the NPPES registry for Cory Conniff is (630) 339-5300.
- Does Cory Conniff accept Medicare?
- Cory Conniff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cory Conniff's NPI active?
- Yes — Cory Conniff's NPI (1376539726) is active in the NPPES registry as of the last update on 2025-11-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.