Justin Mackey, M.D.
Diagnostic Radiology Physician · Darby, PA
Justin Mackey, M.D. is a diagnostic radiology physician with a practice address in Darby, Pennsylvania, and NPI 1275782849, issued on Sep 18, 2008. Check the license (Pennsylvania 437260, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Justin Mackey
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License numbers
- 437260 PA
245913 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1500 Lansdowne Ave, Darby, PA 19023
- Phone
- (914) 584-6245
- Enumerated
- Sep 18, 2008
- Record last updated
- Jul 26, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20101115000557); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 2004
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 2,199 in Pennsylvania → Look up another NPI →
Also registered at 1500 Lansdowne Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mubarak AbdallaStudent in an Organized Health Care Education/Training Program1568045425
- Abul Hasan Shadali Abdul KhaderStudent in an Organized Health Care Education/Training Program1356131676
- Aisha Abdul Sattar, MDHospitalist Physician1841872280
- Reshma Abey, MDStudent in an Organized Health Care Education/Training Program1164362992
- Maham AfzalStudent in an Organized Health Care Education/Training Program1831032945
- Joshika Agarwal, MDStudent in an Organized Health Care Education/Training Program1598469108
Verify Justin Mackey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license 437260Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Mercy Diagnostic Imaging PCDarby, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Justin Mackey among 2,199 diagnostic radiology physician records in Pennsylvania
Justin Mackey, M.D. is one of 2,199 diagnostic radiology physician records with a practice address in Pennsylvania. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 63% of them.
- NPI issued2008 · 63% of these records are older, 33% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2004 · median 2003 among the 1,439 with a school on file
- Record last updated2010 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 diagnostic radiology physician records list a practice address in Darby
They are 19 of the 465 NPPES records with a practice address in Darby, and 2,199 diagnostic radiology physician records in Pennsylvania.
All 2,199 in Pennsylvania → Every provider in Darby → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Robert Borden, DODarby, PA 190231487674180
- Michael Brooks, M.D.Darby, PA 190231477547305
- Stanley Chan, M.D.Darby, PA 190231295821882
- Won Cynn, M.D.Darby, PA 190231710934476
- Bentley Hollander, M.D.Darby, PA 190231366480626
- Laryssa Hud, M.D.Darby, PA 190231346401346
- Betsy Izes, M.D.Darby, PA 190231720054554
- Michael Jay, MDDarby, PA 190231346209624
Common questions
What is Justin Mackey, M.D.'s NPI number?
Justin Mackey, M.D.'s National Provider Identifier (NPI) is 1275782849, issued on Sep 18, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Justin Mackey, M.D. located?
The NPPES record lists a practice address at 1500 Lansdowne Ave, Darby, PA, 19023. Phone: (914) 584-6245. Providers update this record themselves, so call before visiting.
How can I verify Justin Mackey, M.D.'s license?
NPPES lists Pennsylvania license number 437260, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Justin Mackey, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.