Marc Grusensky, MD
NPI 1578620225 · Psychiatry Physician · Commack, NY
Marc Grusensky, MD is a Psychiatry Physician provider in Commack, NY (NPI 1578620225).
Provider details
- NPI number
- 1578620225
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 119135 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Alprazolam | 125 | 24 |
| Duloxetine Hcl | 52 | — |
| Escitalopram Oxalate | 30 | — |
| Diazepam | 25 | — |
| Trazodone Hcl | 21 | — |
| Fluoxetine Hcl | 19 | — |
| Bupropion Hclbrand: Bupropion Xl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is Marc Grusensky's NPI number?
- Marc Grusensky's National Provider Identifier (NPI) is 1578620225, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Grusensky's specialty?
- Marc Grusensky is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Marc Grusensky located?
- Marc Grusensky's practice location on file with NPPES is 2171 Jericho Turnpike, Commack, NY 11725.
- What is Marc Grusensky's phone number?
- The practice phone number listed in the NPPES registry for Marc Grusensky is (631) 499-4224.
- Is Marc Grusensky's NPI active?
- Yes — Marc Grusensky's NPI (1578620225) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.