Stewart Kaplan, M.D.
NPI 1275644023 · Pediatrics Physician · Massapequa, NY
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stewart Kaplan, M.D. is a Pediatrics Physician provider in Massapequa, NY (NPI 1275644023).
Provider details
- NPI number
- 1275644023
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 136197 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
7,996 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) |
|---|---|---|
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 5,403 | $17 |
| Professional Service for Multiple Injections of Allergen95117 | 2,051 | $15 |
| Test for Allergy Using Allergenic Extract Injected Into Skin95024 | 344 | $10 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 136 | $104 |
| Test to Measure Expiratory Airflow and Volume Changes Before and After Medication Administration94060 | 23 | $45 |
| Inhalation Treatment for Airway Obstruction Or Sputum Production94640 | 23 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone Propionate | 34 | 19 |
| Azelastine Hcl | 21 | 13 |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 21 | — |
| Montelukast Sodium | 21 | — |
| Levocetirizine Dihydrochloride | 19 | — |
| Mometasone Furoate | 13 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$140 across 7 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
- 2006-08-31
- Last updated
- 2025-09-11
Frequently asked questions
- What is Stewart Kaplan's NPI number?
- Stewart Kaplan's National Provider Identifier (NPI) is 1275644023, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stewart Kaplan's specialty?
- Stewart Kaplan is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Stewart Kaplan located?
- Stewart Kaplan's practice location on file with NPPES is 20 Hicksville Rd, Massapequa, NY 11758-5819.
- What is Stewart Kaplan's phone number?
- The practice phone number listed in the NPPES registry for Stewart Kaplan is (516) 541-8035.
- Does Stewart Kaplan accept Medicare?
- Stewart Kaplan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stewart Kaplan's NPI active?
- Yes — Stewart Kaplan's NPI (1275644023) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.