Mark Kaplan, MD
NPI 1861591661 · Allergy & Immunology Physician · Gurnee, IL
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Kaplan, MD is a Allergy & Immunology Physician provider in Gurnee, IL (NPI 1861591661).
Provider details
- NPI number
- 1861591661
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036077766 (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
5,180 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) |
|---|---|---|
| Test for Allergy Using Allergenic Extract95004 | 3,536 | $4 |
| Test for Allergy Using Allergenic Extract Injected Into Skin95024 | 591 | $8 |
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 350 | $15 |
| Professional Service for Multiple Injections of Allergen95117 | 281 | $13 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 162 | $93 |
| Test to Measure Rate of Airflow94375 | 84 | $40 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azelastine Hcl | 161 | 69 |
| Ipratropium Bromide | 160 | 37 |
| Montelukast Sodium | 125 | 32 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 75 | 39 |
| Gabapentin | 69 | 18 |
| Levocetirizine Dihydrochloride | 61 | 17 |
| Fluticasone Propionate | 58 | 25 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,074 across 85 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)
- 1800 Hollister Dr Ste 210Libertyville, IL 60048-5266Phone: (847) 549-7711Fax: (847) 549-1020
Registry dates
- Enumerated
- 2006-09-21
- Last updated
- 2022-09-09
- Certified
- 2022-09-09
Frequently asked questions
- What is Mark Kaplan's NPI number?
- Mark Kaplan's National Provider Identifier (NPI) is 1861591661, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Kaplan's specialty?
- Mark Kaplan is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Kaplan located?
- Mark Kaplan's practice location on file with NPPES is 36100 N Brookside Dr Ste 203, Gurnee, IL 60031-4573.
- What is Mark Kaplan's phone number?
- The practice phone number listed in the NPPES registry for Mark Kaplan is (847) 855-1570.
- Does Mark Kaplan accept Medicare?
- Mark Kaplan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Kaplan's NPI active?
- Yes — Mark Kaplan's NPI (1861591661) is active in the NPPES registry as of the last update on 2022-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.