Regan Christopoulos, MD
NPI 1740231596 · Internal Medicine Physician · Gurnee, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Regan Christopoulos, MD is a Internal Medicine Physician provider in Gurnee, IL (NPI 1740231596).
Provider details
- NPI number
- 1740231596
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 036-107767 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
680 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 174 | $137 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 160 | $103 |
| 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 | 111 | $17 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 92 | $71 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 50 | $150 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 97 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 441 | 130 |
| Levothyroxine Sodium | 258 | 84 |
| Losartan Potassium | 213 | 68 |
| Lisinopril | 208 | 69 |
| Amlodipine Besylate | 202 | 66 |
| Rosuvastatin Calcium | 191 | 59 |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-15
- Last updated
- 2021-02-16
- Certified
- 2021-02-16
Frequently asked questions
- What is Regan Christopoulos's NPI number?
- Regan Christopoulos's National Provider Identifier (NPI) is 1740231596, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Regan Christopoulos's specialty?
- Regan Christopoulos is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Regan Christopoulos located?
- Regan Christopoulos's practice location on file with NPPES is Deerpath Physicians Group, Gurnee, IL 60031-3813.
- What is Regan Christopoulos's phone number?
- The practice phone number listed in the NPPES registry for Regan Christopoulos is (847) 566-3337.
- Does Regan Christopoulos accept Medicare?
- Regan Christopoulos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Regan Christopoulos's NPI active?
- Yes — Regan Christopoulos's NPI (1740231596) is active in the NPPES registry as of the last update on 2021-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.