Daniel Ryan Tierney, PA-C
- Part D claims, 2024
- 221
- Hospital affiliations
- 1
- Medical group
- 1
- State licenses
- 2
- Year NPI issued
- 2017
- Practice address
- One Gustave L Levy Place, New York, NY 10029
- Practice phone
- Call (212) 241-7981
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Daniel Tierney's professional email, personal email and mobile number
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Daniel Ryan Tierney is a physician assistant in New York, New York
Daniel Tierney practices at The Mount Sinai Hospital in New York, New York, part of Mount Sinai Health System.
Daniel Tierney's NPI, 1356862429, was assigned on June 29, 2017. Daniel Tierney holds New York license 023489.
- NPI
- 1356862429NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5698047900
- NPI enumeration date
- June 29, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (212) 241-7981
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Daniel Ryan Tierney practices at 2 locations in New York, New York
Daniel Tierney's primary practice is The Mount Sinai Hospital, at One Gustave L Levy Place, New York, NY 10029 in New York County. The practice phone is (212) 241-7981. Daniel Tierney also practices at The Mount Sinai Hospital, 1 Gustave L Levy Pl, New York, NY 10029.
- The Mount Sinai HospitalPrimaryOne Gustave L Levy Place, New York, NY 10029 · New York CountyPhone(212) 241-7981
- The Mount Sinai Hospital1 Gustave L Levy Pl, New York, NY 10029 · New York CountyPhone(212) 256-2904
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Daniel Ryan Tierney is affiliated with 2 sites of care and 1 medical group
Daniel Tierney's primary practice is The Mount Sinai Hospital in New York, New York, part of Mount Sinai Health System. The medical group on file is Mount Sinai Institute for Liver Medicine. Dmand AI also links Daniel Tierney to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Daniel Ryan Tierney's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Daniel Tierney practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Mount Sinai Hospital | Available with a free account |
| +1 more affiliated site | 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.
Daniel Ryan Tierney is one of 11,456 physician assistants in New York
Physician assistant is Daniel Tierney's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dmand AI has Daniel Tierney's licenses on file in 2 states: New York and Connecticut.
Specialties and state licenses
- Physician assistant, New YorkPrimary
- Connecticut license
Physician assistants near Daniel 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
Daniel Ryan Tierney's patients have a median age of 60
Across all payers, Dmand AI patient panel data puts Daniel Tierney's median patient age at 60, with 44% women.
Daniel 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 60
Patient panel by sex, all payers
- Women44%
- Men54%
Source: Dmand AI Patient Panel Data
Daniel Ryan Tierney wrote 221 Medicare Part D claims in 2024
In 2024, Daniel Tierney wrote 221 Medicare Part D claims for 88 patients. 96% of them were for generic drugs. CMS names the drug for 128 of them, across 5 drugs with 11 or more claims each, at $714 in total drug cost.
Daniel Tierney's Part D claims by kind of drug, 2024
- Generic213 claims96%
- Brand-name and other8 claims4%
Daniel Tierney'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 Daniel Tierney's Part D claims, 2024
- Opioids14%30 of 221 claims
- Antibiotics10%22 of 221 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 Daniel Ryan Tierney takes part in Medicare
Daniel Tierney 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)
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.
Sources for Daniel Ryan 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice 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 |
| 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) |
| 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 Daniel Ryan 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 Daniel Ryan Tierney's NPI number?
Daniel Ryan Tierney's NPI number is 1356862429. It was assigned on June 29, 2017, and it is active in the NPI Registry.
What does Daniel Ryan Tierney specialize in?
Daniel Ryan Tierney is a physician assistant in New York, New York. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Daniel Ryan Tierney practice?
Daniel Tierney practices at One Gustave L Levy Place, New York, NY 10029. Daniel Tierney also practices at 1 Gustave L Levy Pl, New York, NY 10029. Daniel Tierney's primary practice is The Mount Sinai Hospital in New York, New York, part of Mount Sinai Health System. Dmand AI also links Daniel Tierney to 1 group practice or clinic.
What is Daniel Ryan Tierney's office phone number?
The practice phone on file for Daniel Tierney is (212) 241-7981.
What is Daniel Ryan Tierney's medical license number?
Daniel Tierney holds New York license 023489, one of the licenses on file in 2 states.
Which states has Daniel Ryan Tierney been licensed in?
Dmand AI has state licenses on file for Daniel Tierney in New York and Connecticut.
Which hospitals is Daniel Ryan Tierney affiliated with?
Daniel Tierney practices at The Mount Sinai Hospital in New York, New York.
What medical group is Daniel Ryan Tierney part of?
Daniel Tierney is linked to Mount Sinai Institute for Liver Medicine.
Does Daniel Ryan Tierney accept Medicare?
Yes. CMS lists Daniel Tierney as accepting Medicare assignment.
What drugs does Daniel Ryan Tierney prescribe most?
In 2024 Medicare Part D data, Daniel Tierney's most prescribed drugs by claims were Chlorhexidine Gluconate, Oxycodone HCl and Gabapentin.
How long has Daniel Ryan Tierney been practicing?
Daniel Tierney's NPI was assigned in 2017.
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