Michael S. Chiarenza, RPAC
- Medicare patients, 2024
- 13
- Part D claims, 2024
- 20
- Hospital affiliations
- 2
- Industry payments
- $412
- Medical group
- 1
- Practice address
- 1000 N.Village Ave., Rockville Centre, NY 11570
- Practice phone
- Call (516) 705-2216
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mercy Medical Center - Unit
Acute Care Hospital-Unit · Rockville Centre, New York
Find Michael Chiarenza'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.
Michael S. Chiarenza is a surgical physician assistant in Rockville Centre, New York
Michael Chiarenza practices at Mercy Medical Center - Unit in Rockville Centre, New York.
Michael Chiarenza's NPI, 1295085884, was assigned on September 12, 2012. Michael Chiarenza graduated from State University of New York at Stony Brook, School of Medicine in 2012. Michael Chiarenza holds New York license 015960.
- NPI
- 1295085884NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3274756689
- NPI enumeration date
- September 12, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (516) 705-2216
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Michael S. Chiarenza practices at Mercy Medical Center - Unit in Rockville Centre, New York
Michael Chiarenza's primary practice is Mercy Medical Center - Unit, at 1000 N.Village Ave., Rockville Centre, NY 11570 in Nassau County. The practice phone is (516) 705-2216.
- Mercy Medical Center - Unit1000 N.Village Ave., Rockville Centre, NY 11570 · Nassau CountyPhone(516) 705-2216
Source: Dmand AI Affiliation Data
Michael S. Chiarenza is affiliated with 3 sites of care and 1 medical group
Michael Chiarenza's primary practice is Mercy Medical Center - Unit in Rockville Centre, New York. Michael Chiarenza is also affiliated with Mercy Hospital. The medical group on file is Island Musculoskeletal Care. Dmand AI also links Michael Chiarenza to 1 more group practice or clinic, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Michael S. Chiarenza's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Michael Chiarenza practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Medical Center - Unit | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Michael S. Chiarenza is one of 1,635 surgical physician assistants in New York
Surgical is Michael Chiarenza's primary specialty in the NPI Registry, under taxonomy code 363AS0400X. Michael Chiarenza is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Michael Chiarenza is licensed in New York.
Specialties and state licenses
- Surgical physician assistant, New YorkPrimary
Surgical physician assistants near Michael Chiarenza
Counts of surgical 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
Michael S. Chiarenza treated 13 Medicare patients in 2024, average age 67
CMS counts 13 Medicare patients who saw Michael Chiarenza in 2024. The largest group is 85 and over, with 0 patients. 75% of them have arthritis, and 75% have high blood pressure. Their average risk score is 0.94, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Michael Chiarenza's median patient age at 59, with 48% women.
Michael Chiarenza's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Michael Chiarenza's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Michael Chiarenza's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Michael S. Chiarenza wrote 20 Medicare Part D claims in 2024
In 2024, Michael Chiarenza wrote 20 Medicare Part D claims for 17 patients. 100% of them were for generic drugs. CMS names the drug for 14 of them, across 1 drug with 11 or more claims each, at $70 in total drug cost.
Michael Chiarenza's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Michael Chiarenza's Part D claims, 2024
- Opioids95%19 of 20 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Michael S. Chiarenza takes part in Medicare
Michael Chiarenza accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Michael S. Chiarenza received $412 in industry payments in 2025
CMS Open Payments shows 8 general payments to Michael Chiarenza from 5 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Djo, LLC paid the most, $143.
Companies that paid Michael Chiarenza the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Michael S. Chiarenza graduated from State University of New York at Stony Brook, School of Medicine
Michael Chiarenza graduated from State University of New York at Stony Brook, School of Medicine in 2012.
- Medical school
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Michael S. Chiarenza'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Michael S. Chiarenza
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Michael S. Chiarenza's NPI number?
Michael S. Chiarenza's NPI number is 1295085884. It was assigned on September 12, 2012, and it is active in the NPI Registry.
What does Michael S. Chiarenza specialize in?
Michael S. Chiarenza is a surgical physician assistant in Rockville Centre, New York. The primary specialty in the NPI Registry is Surgical Physician Assistant (taxonomy code 363AS0400X).
Where does Michael S. Chiarenza practice?
Michael Chiarenza practices at 1000 N.Village Ave., Rockville Centre, NY 11570. Michael Chiarenza's primary practice is Mercy Medical Center - Unit in Rockville Centre, New York. Dmand AI also links Michael Chiarenza to 1 group practice or clinic.
What is Michael S. Chiarenza's office phone number?
The practice phone on file for Michael Chiarenza is (516) 705-2216.
What is Michael S. Chiarenza's medical license number?
Michael Chiarenza holds New York license 015960.
Which hospitals is Michael S. Chiarenza affiliated with?
Michael Chiarenza is affiliated with Mercy Hospital. Dmand AI links Michael Chiarenza to 1 more hospital.
What medical group is Michael S. Chiarenza part of?
Michael Chiarenza is linked to Island Musculoskeletal Care.
Does Michael S. Chiarenza accept Medicare?
Yes. CMS lists Michael Chiarenza as accepting Medicare assignment.
How many Medicare patients does Michael S. Chiarenza see?
CMS counts 13 Medicare patients who saw Michael Chiarenza in 2024, with an average age of 67.
Is Michael S. Chiarenza board certified?
Yes. Michael Chiarenza is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
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Where did Michael S. Chiarenza go to medical school?
Michael Chiarenza graduated from State University of New York at Stony Brook, School of Medicine in 2012.
What drugs does Michael S. Chiarenza prescribe most?
In 2024 Medicare Part D data, Michael Chiarenza's most prescribed drugs by claims were Oxycodone-Acetaminophen.
Has Michael S. Chiarenza received payments from drug or device companies?
CMS Open Payments shows $412 in general payments to Michael Chiarenza from 5 companies from 2025 to 2025. The largest total came from Djo, LLC.
How long has Michael S. Chiarenza been practicing?
Michael Chiarenza graduated from medical school in 2012, 14 years ago.
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