Steven James Mazzeo
- Part D claims, 2024
- 500
- Hospital affiliations
- 1
- Industry payments
- $28
- Medical group
- 1
- State license
- 1
- Practice address
- 1000 Tenth Avenue, New York, NY 10019
- Practice phone
- Call (212) 523-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Steven Mazzeo's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Steven James Mazzeo is a physician assistant in New Hyde Park, New York
Steven Mazzeo practices at Mount Sinai West in New York, New York, part of Mount Sinai Health System.
Steven Mazzeo's NPI, 1215438064, was assigned on February 27, 2018. Steven Mazzeo holds New York license 021772.
- NPI
- 1215438064NPI Registry (opens in a new tab)
- NPI enumeration date
- February 27, 2018
- NPI status
- Active
- Practice phone
- (212) 523-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Steven James Mazzeo practices in New York and New Hyde Park
Steven Mazzeo's primary practice is Mount Sinai West, at 1000 Tenth Avenue, New York, NY 10019 in New York County. The practice phone is (212) 523-4000. The NPI Registry lists Steven Mazzeo's practice address as 27005 76th Ave, New Hyde Park, NY 11040.
- Mount Sinai WestPrimary1000 Tenth Avenue, New York, NY 10019 · New York CountyPhone(212) 523-4000
- NPI Registry address27005 76th Ave, New Hyde Park, NY 11040 · Nassau County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Steven James Mazzeo is affiliated with 1 site of care and 1 medical group
Steven Mazzeo's primary practice is Mount Sinai West in New York, New York, part of Mount Sinai Health System. The medical group on file is Northwell Health Physician Partners Cardiology at Great Neck.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Steven James Mazzeo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Steven Mazzeo practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mount Sinai West | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Mount Sinai Health System and 6.2K+ hospitals, with verified contacts in the same login.
Steven James Mazzeo is one of 11,456 physician assistants in New York
Physician assistant is Steven Mazzeo's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Steven Mazzeo is licensed in New York.
Specialties and state licenses
- Physician assistant, New YorkPrimary
Physician assistants near Steven Mazzeo
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Steven James Mazzeo's patients have a median age of 64
Across all payers, Dmand AI patient panel data puts Steven Mazzeo's median patient age at 64, with 57% women.
Steven Mazzeo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women57%
- Men29%
Source: Dmand AI Patient Panel Data
Steven James Mazzeo wrote 500 Medicare Part D claims in 2024
In 2024, Steven Mazzeo wrote 500 Medicare Part D claims for 188 patients. 90% of them were for generic drugs.
Steven Mazzeo's Part D claims by kind of drug, 2024
- Generic448 claims90%
- Brand-name and other52 claims10%
Drug classes CMS tracks in Steven Mazzeo's Part D claims, 2024
- Opioids30%150 of 500 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Steven James Mazzeo received $28 in industry payments in 2025
CMS Open Payments shows 1 general payment to Steven Mazzeo from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Vertex Pharmaceuticals Incorporated paid the most, $28.
Companies that paid Steven Mazzeo the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Steven James Mazzeo's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Steven James Mazzeo
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Steven James Mazzeo's NPI number?
Steven James Mazzeo's NPI number is 1215438064. It was assigned on February 27, 2018, and it is active in the NPI Registry.
What does Steven James Mazzeo specialize in?
Steven James Mazzeo is a physician assistant in New Hyde Park, New York. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Steven James Mazzeo practice?
Steven Mazzeo practices at 1000 Tenth Avenue, New York, NY 10019. Steven Mazzeo also practices at 27005 76th Ave, New Hyde Park, NY 11040. Steven Mazzeo's primary practice is Mount Sinai West in New York, New York, part of Mount Sinai Health System.
What is Steven James Mazzeo's office phone number?
The practice phone on file for Steven Mazzeo is (212) 523-4000.
What is Steven James Mazzeo's medical license number?
Steven Mazzeo holds New York license 021772.
Which hospitals is Steven James Mazzeo affiliated with?
Steven Mazzeo practices at Mount Sinai West in New York, New York.
What medical group is Steven James Mazzeo part of?
Steven Mazzeo is linked to Northwell Health Physician Partners Cardiology at Great Neck.
Has Steven James Mazzeo received payments from drug or device companies?
CMS Open Payments shows $28 in general payments to Steven Mazzeo from 1 company from 2025 to 2025. The largest total came from Vertex Pharmaceuticals Incorporated.
How long has Steven James Mazzeo been practicing?
Steven Mazzeo graduated from medical school in 2018, 8 years ago.
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