Justin T. Mahr, PA-C
- Medicare patients, 2024
- 130
- Part D claims, 2024
- 2,459
- Hospital affiliations
- 4
- Industry payments
- $298
- Medical groups
- 2
- Practice address
- 5501 Old York Road, Philadelphia, PA 19141
- Practice phone
- Call (215) 456-6090
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Justin Mahr'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.
Justin T. Mahr is a physician assistant in Philadelphia, Pennsylvania
Justin Mahr practices at Jefferson Einstein Philadelphia Hospital in Philadelphia, Pennsylvania, part of Thomas Jefferson University.
Justin Mahr's NPI, 1255981841, was assigned on September 16, 2019. Justin Mahr holds Pennsylvania license MA061076.
- NPI
- 1255981841NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0749613875
- NPI enumeration date
- September 16, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (215) 456-6090
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Justin T. Mahr practices at Jefferson Einstein Philadelphia Hospital in Philadelphia, Pennsylvania
Justin Mahr's primary practice is Jefferson Einstein Philadelphia Hospital, at 5501 Old York Road, Philadelphia, PA 19141 in Philadelphia County. The practice phone is (215) 456-6090.
- Jefferson Einstein Philadelphia Hospital5501 Old York Road, Philadelphia, PA 19141 · Philadelphia CountyPhone(215) 456-6090
Source: Dmand AI Affiliation Data
Justin T. Mahr is affiliated with 5 sites of care and 2 medical groups
Justin Mahr's primary practice is Jefferson Einstein Philadelphia Hospital in Philadelphia, Pennsylvania, part of Thomas Jefferson University. Justin Mahr is also affiliated with Christiana Hospital. The medical group on file is ChristianaCare. Dmand AI also links Justin Mahr to 2 more hospitals, 1 dialysis center and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Justin T. Mahr's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Justin Mahr practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Jefferson Einstein Philadelphia Hospital | Available with a free account |
| +4 more sites and 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 Thomas Jefferson University and 6.2K+ hospitals, with verified contacts in the same login.
Justin T. Mahr is one of 6,491 physician assistants in Pennsylvania
Physician assistant is Justin Mahr's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dmand AI has Justin Mahr's licenses on file in 2 states: Pennsylvania and Delaware.
Specialties and state licenses
- Physician assistant, PennsylvaniaPrimary
- Delaware license
Physician assistants near Justin Mahr
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
Justin T. Mahr treated 130 Medicare patients in 2024, average age 66
CMS counts 130 Medicare patients who saw Justin Mahr in 2024. The largest group is 65 to 74, with 74 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 42% are also on Medicaid. Their average risk score is 2.98, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Justin Mahr's median patient age at 58, with 49% women.
Justin Mahr's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Justin Mahr's Medicare patients by sex, 2024
- Women6651%
- Men6449%
Chronic conditions among Justin Mahr's Medicare patients, 2024
- High blood pressure75%
- High cholesterol73%
- Diabetes58%
- Chronic kidney disease55%
- Arthritis38%
- Ischemic heart disease34%
- Alcohol and drug use disorders32%
- Mood disorders32%
Share of Medicare patients with each condition. A patient can have several.
Justin Mahr's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women49%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Justin T. Mahr wrote 2,459 Medicare Part D claims in 2024
In 2024, Justin Mahr wrote 2,459 Medicare Part D claims for 238 patients. 82% of them were for generic drugs.
Justin Mahr's Part D claims by kind of drug, 2024
- Generic2,018 claims82%
- Brand-name441 claims18%
Drug classes CMS tracks in Justin Mahr's Part D claims, 2024
- Antibiotics3%72 of 2,459 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Justin T. Mahr offers telehealth to Medicare patients
Justin Mahr accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Justin Mahr as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- 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.
Justin T. Mahr received $298 in industry payments in 2025
CMS Open Payments shows 8 general payments to Justin Mahr from 4 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Madrigal Pharmaceuticals paid the most, $116.
Companies that paid Justin Mahr 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 Justin T. Mahr'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | 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) |
| 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 Justin T. Mahr
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Justin T. Mahr's NPI number?
Justin T. Mahr's NPI number is 1255981841. It was assigned on September 16, 2019, and it is active in the NPI Registry.
What does Justin T. Mahr specialize in?
Justin T. Mahr is a physician assistant in Philadelphia, Pennsylvania. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Justin T. Mahr practice?
Justin Mahr practices at 5501 Old York Road, Philadelphia, PA 19141. Justin Mahr's primary practice is Jefferson Einstein Philadelphia Hospital in Philadelphia, Pennsylvania, part of Thomas Jefferson University. Dmand AI also links Justin Mahr to 2 hospitals, 1 dialysis center and 1 medical group.
What is Justin T. Mahr's office phone number?
The practice phone on file for Justin Mahr is (215) 456-6090.
What is Justin T. Mahr's medical license number?
Justin Mahr holds Pennsylvania license MA061076, one of the licenses on file in 2 states.
Which states has Justin T. Mahr been licensed in?
Dmand AI has state licenses on file for Justin Mahr in Pennsylvania and Delaware.
Which hospitals is Justin T. Mahr affiliated with?
Justin Mahr practices at Jefferson Einstein Philadelphia Hospital in Philadelphia, Pennsylvania. Justin Mahr is also affiliated with Christiana Hospital. Dmand AI links Justin Mahr to 2 more hospitals.
What medical group is Justin T. Mahr part of?
Justin Mahr is linked to ChristianaCare. Dmand AI links Justin Mahr to 1 more medical group.
Does Justin T. Mahr accept Medicare?
Yes. CMS lists Justin Mahr as accepting Medicare assignment.
Does Justin T. Mahr offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Justin Mahr as offering telehealth services.
Show 3 more questionsShow fewer questions
How many Medicare patients does Justin T. Mahr see?
CMS counts 130 Medicare patients who saw Justin Mahr in 2024, with an average age of 66.
Has Justin T. Mahr received payments from drug or device companies?
CMS Open Payments shows $298 in general payments to Justin Mahr from 4 companies from 2025 to 2025. The largest total came from Madrigal Pharmaceuticals.
How long has Justin T. Mahr been practicing?
Justin Mahr graduated from medical school in 2019, 7 years ago.
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