Robert Marchlewski, M.D.
NPI 1477630721 · Allergy & Immunology Physician · Garden City, NY
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Marchlewski, M.D. is a Allergy & Immunology Physician provider in Garden City, NY (NPI 1477630721).
Provider details
- NPI number
- 1477630721
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 232202 (NY)
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
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
4,623 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 | 4,184 | $5 |
| Professional Service for Multiple Injections of Allergen95117 | 183 | $16 |
| Test for Allergy Using Combination of Methods With Drug Or Biological95018 | 108 | $24 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 108 | $136 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 40 | $109 |
Typical Medicare-allowed amounts for these services range $5–$136 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Montelukast Sodium | 72 | 21 |
| Levocetirizine Dihydrochloride | 63 | 23 |
| Azelastine Hcl | 45 | 15 |
| Olopatadine Hcl | 32 | 16 |
| Fluticasone Propionate | 28 | — |
| Azelastine/Fluticasonebrand: Azelastine-Fluticasone | 27 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,107 across 58 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
- 2006-11-01
- Last updated
- 2019-04-03
Frequently asked questions
- What is Robert Marchlewski's NPI number?
- Robert Marchlewski's National Provider Identifier (NPI) is 1477630721, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Marchlewski's specialty?
- Robert Marchlewski is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Marchlewski located?
- Robert Marchlewski's practice location on file with NPPES is 990 Stewart Ave Ste 610, Garden City, NY 11530-4838.
- What is Robert Marchlewski's phone number?
- The practice phone number listed in the NPPES registry for Robert Marchlewski is (516) 222-1881.
- Does Robert Marchlewski accept Medicare?
- Robert Marchlewski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Marchlewski's NPI active?
- Yes — Robert Marchlewski's NPI (1477630721) is active in the NPPES registry as of the last update on 2019-04-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.