Larissa Laskowski, D.O.
Larissa Laskowski, D.O. is a Medical Toxicology (Emergency Medicine) Physician in New York, NY, registered under NPI 1114151867. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 550 1ST AVE, New York, NY 10016. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 267865 | NY | Medical Toxicology (Emergency Medicine)… primary |
| 267865 | NY | Emergency Medicine Physician |
This provider holds licence 267865 issued in NY. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Medical Toxicology
- PAC ID
- 3971737974
Medicare enrolment is recorded as approved under the provider type Practitioner - Medical Toxicology. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Medical Toxicology covers
Medical toxicologists are physicians who specialize in the prevention, evaluation, treatment and monitoring of injury and illness from exposures to drugs and chemicals, as well as biological and radiological agents. Medical toxicologists care for people in clinical, academic, governmental and public health settings, and provide poison control center leadership. Important areas of medical toxicology include acute drug poisoning, adverse drug events, drug abuse, addiction and withdrawal, chemicals and hazardous materials, terrorism preparedness, venomous bites and stings and environmental and workplace exposures. NUCC Health Care Provider Taxonomy, code 207PT0002X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207PT0002X | Medical Toxicology (Emergency Medicine) Physician Medical Toxicology | 267865 | NY | primary |
| 207P00000X | Emergency Medicine Physician | 267865 | NY |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1114151867 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 11, 2009 |
| Last updated | Aug 29, 2022 |
| Status | Active |
| Sole proprietor | No |
| Credential | D.O. |
| Practice address |
550 1ST AVE New York, NY 10016 (212) 447-4534 |
| Mailing address |
455 1ST AVE RM 123 New York, NY 10016 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 1 | 1 | 4 | 1 | 5 | 1 | 8 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 2 | 4 | 2 | 5 | 2 | 8 | 3 |
Sum = 53 · next multiple of 10 = 60 · check digit = 7 · actual last digit = 7
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.