John Tierney, PA-C
- MIPS score, 2024
- 93
- Hospital affiliations
- 1
- Industry payments
- $28
- Medical groups
- 2
- State license
- 1
- Practice address
- 300 Community Drive, Manhasset, NY 11030
- Practice phone
- Call (516) 562-0100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find John Tierney'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.
John Tierney is a physician assistant in Manhasset, New York
John Tierney practices at North Shore University Hospital in Manhasset, New York, part of Northwell Health.
John Tierney's NPI, 1669010591, was assigned on December 10, 2019.
- NPI
- 1669010591NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789098674
- NPI enumeration date
- December 10, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (516) 562-0100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
John Tierney practices at North Shore University Hospital in Manhasset, New York
John Tierney's primary practice is North Shore University Hospital, at 300 Community Drive, Manhasset, NY 11030 in Nassau County. The practice phone is (516) 562-0100.
- North Shore University Hospital300 Community Drive, Manhasset, NY 11030 · Nassau CountyPhone(516) 562-0100
Source: Dmand AI Affiliation Data
John Tierney is affiliated with 1 site of care and 2 medical groups
John Tierney's primary practice is North Shore University Hospital in Manhasset, New York, part of Northwell Health. The medical group on file is Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI also links John Tierney to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at John Tierney's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Tierney practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| North Shore University Hospital | Available with a free account |
| +1 medical group | 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 Northwell Health and 6.2K+ hospitals, with verified contacts in the same login.
John Tierney is one of 11,456 physician assistants in New York
Physician assistant is John Tierney's primary specialty in the NPI Registry, under taxonomy code 363A00000X.
Specialties and state licenses
- Physician assistantPrimary
- Student in an organized health care education/training program
Physician assistants near John Tierney
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
John Tierney's patients have a median age of 68
Across all payers, Dmand AI patient panel data puts John Tierney's median patient age at 68, with 24% women.
John Tierney's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women24%
- Men70%
Source: Dmand AI Patient Panel Data
John Tierney scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for John Tierney for performance year 2024, reported through an alternative payment model (APM). John Tierney accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
John Tierney's MIPS scores, performance year 2024
- 93of 100Final score
- 79.8of 100Quality
- 89of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
John Tierney received $28 in industry payments in 2025
CMS Open Payments shows 1 general payment to John Tierney from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Abiomed paid the most, $28.
Companies that paid John Tierney 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 John Tierney'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 DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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 John Tierney
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John Tierney's NPI number?
John Tierney's NPI number is 1669010591. It was assigned on December 10, 2019, and it is active in the NPI Registry.
What does John Tierney specialize in?
John Tierney is a physician assistant in Manhasset, New York. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does John Tierney practice?
John Tierney practices at 300 Community Drive, Manhasset, NY 11030. John Tierney's primary practice is North Shore University Hospital in Manhasset, New York, part of Northwell Health. Dmand AI also links John Tierney to 1 medical group.
What is John Tierney's office phone number?
The practice phone on file for John Tierney is (516) 562-0100.
Which hospitals is John Tierney affiliated with?
John Tierney practices at North Shore University Hospital in Manhasset, New York.
What medical group is John Tierney part of?
John Tierney is linked to Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI links John Tierney to 1 more medical group.
Does John Tierney accept Medicare?
Yes. CMS lists John Tierney as accepting Medicare assignment.
What is John Tierney's MIPS score?
John Tierney's MIPS final score for performance year 2024 is 93 out of 100, reported through an alternative payment model (APM).
Has John Tierney received payments from drug or device companies?
CMS Open Payments shows $28 in general payments to John Tierney from 1 company from 2025 to 2025. The largest total came from Abiomed.
How long has John Tierney been practicing?
John Tierney graduated from medical school in 2020, 6 years ago.
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