Justin Michael Liddy, PA-C
Physician Assistant · Mahwah, NJ
Justin Michael Liddy, PA-C is a physician assistant with a practice address in Mahwah, New Jersey, and NPI 1780154443, issued on Nov 26, 2018. Check the license (New Jersey 25MP00500100, as entered in NPPES) with the New Jersey board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Justin Michael Liddy
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 25MP00500100 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 1400 Macarthur Blvd, Mahwah, NJ 07430
- Phone
- (201) 316-8431
- Enumerated
- Nov 26, 2018
- Record last updated
- Nov 26, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (201) 962-9735
- Medicare enrollment
- Enrolled (PECOS I20221027002751); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,393 in New Jersey → Look up another NPI →
Also registered at 1400 Macarthur Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hannah Dial, DPTPhysical Therapist1730037979
- John KimPhysical Therapist1578440566
- Maria Williams, FNPFamily Nurse Practitioner1619446572
Verify Justin Michael Liddy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
Search for license 25MP00500100Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average physician assistant in 2024
38 Medicare Part D claims for 28 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $28.76
1 payment: food and beverage; the largest payer was Getinge USA Sales, LLC. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Main Line HealthcareWynewood, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Justin Michael Liddy among 3,393 physician assistant records in New Jersey
Justin Michael Liddy, PA-C is one of 3,393 physician assistant records with a practice address in New Jersey. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 44% of them.
- NPI issued2018 · 44% of these records are older, 52% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2018 · median 2019 among the 2,168 with a school on file
- Record last updated2018 · 35% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 physician assistant records list a practice address in Mahwah
They are 3 of the 235 NPPES records with a practice address in Mahwah, and 3,393 physician assistant records in New Jersey.
All 3,393 in New Jersey → Every provider in Mahwah → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Alexandria Mesropyan, PAMahwah, NJ 074301225730252
- Ashley Parchinski, PA-CMahwah, NJ 074301366052474
- Clayton Bridges, P.A.-C.Oakland, NJ 074361962625210
- Faith FischerOakland, NJ 074361922934298
- Shannon Marren, PA-CWoodland Park, NJ 074241942047857
- Julie Philip, P.AWest Paterson, NJ 074241386823052
- Niusha Sareh, PA-CWoodland Park, NJ 074241730916297
- Maria Tenebruso, PA-COakland, NJ 074361184683088
Common questions
What is Justin Michael Liddy, PA-C's NPI number?
Justin Michael Liddy, PA-C's National Provider Identifier (NPI) is 1780154443, issued on Nov 26, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Justin Michael Liddy, PA-C located?
The NPPES record lists a practice address at 1400 Macarthur Blvd, Mahwah, NJ, 07430. Phone: (201) 316-8431. Providers update this record themselves, so call before visiting.
How can I verify Justin Michael Liddy, PA-C's license?
NPPES lists New Jersey license number 25MP00500100, as entered by the provider. Search the New Jersey board that licenses this profession; the NPPES record confirms identity only.
How much does Justin Michael Liddy, PA-C prescribe under Medicare Part D?
In 2024, Justin Michael Liddy, PA-C had 38 Medicare Part D claims for 28 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.