Marshall Keilson, MD
NPI 1528068954 · Sports Medicine (Neuromusculoskeletal Medicine) Physician · Brooklyn, NY
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marshall Keilson, MD is a Sports Medicine (Neuromusculoskeletal Medicine) Physician provider in Brooklyn, NY (NPI 1528068954).
Provider details
- NPI number
- 1528068954
- Entity type
- Individual
- Primary specialty
- Sports Medicine (Neuromusculoskeletal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 134726 (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
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
570 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 | 260 | $146 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 185 | $192 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 58 | $104 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 27 | $9 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 26 | $253 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 68 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levetiracetam | 438 | 56 |
| Memantine Hcl | 405 | 74 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 250 | 47 |
| Divalproex Sodium | 232 | 34 |
| Donepezil Hcl | 227 | 45 |
| Gabapentin | 181 | 39 |
| Escitalopram Oxalate | 152 | 30 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$808 across 40 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
- 2005-07-28
- Last updated
- 2014-01-23
Frequently asked questions
- What is Marshall Keilson's NPI number?
- Marshall Keilson's National Provider Identifier (NPI) is 1528068954, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marshall Keilson's specialty?
- Marshall Keilson is listed in the NPPES registry with a primary specialty of Sports Medicine (Neuromusculoskeletal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Marshall Keilson located?
- Marshall Keilson's practice location on file with NPPES is 2044 Ocean Ave, Brooklyn, NY 11230-7393.
- What is Marshall Keilson's phone number?
- The practice phone number listed in the NPPES registry for Marshall Keilson is (718) 759-6065.
- Does Marshall Keilson accept Medicare?
- Marshall Keilson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marshall Keilson's NPI active?
- Yes — Marshall Keilson's NPI (1528068954) is active in the NPPES registry as of the last update on 2014-01-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.