Doctor profile · Federal record
Dr. Justin Mahr, PA-C
Physician Assistant · Physician Assistant · Newark, DE
- NPI 1255981841
- Accepts Medicare
- 7 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
4755 Ogletown Stanton RD Ste 5A43
Newark, DE 197184250
(320) 623-0188 - Additional location
-
5501 Old York RD Ste 1
Philadelphia, PA 191413098
(215) 456-7890 - Mailing address
-
200 Hygeia Dr Ste 2300
Newark, DE 197132049
Credentials & registration
- NPI registered
- September 2019 — 7 yrs on file
- Profile last updated
- February 1, 2022
- Year of graduation
- 2019 — 7 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State licenses (2)
- Pennsylvania #MA061076 · Delaware #C5-0001366
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1255981841. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
210
Distinct HCPCS
5
Medicare allowed
$13,990
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 107 | 96 | $58 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 58 | 50 | $85 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 20 | 20 | $73 | |
91200 |
Measurement of liver stiffness | 14 | 14 | $9 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 11 | 11 | $117 |
In context: peer comparison
Among 80 peers in this city , average services per provider: 68. This provider delivers 3.1× the peer median.Open Payments
Industry payments received
All-time total
$881
Transactions
18
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Gilead Sciences, Inc. | 12 | $444.89 | |
| Ipsen Biopharmaceuticals, Inc | 3 | $294.11 | |
| Alexion Pharmaceuticals, Inc. | 1 | $105.34 | |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | 1 | $21.69 | |
| Madrigal Pharmaceuticals | 1 | $14.48 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,341
Patients
238
Total drug cost
$297,693
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Tacrolimus | Generic | 290 | 37 | $26,835 |
| Mycophenolate Mofetil | Generic | 173 | 28 | $11,432 |
| Ursodiol | Generic | 141 | 24 | $18,581 |
| Pantoprazole Sodium | Generic | 140 | 24 | $922 |
| Vemlidy (Tenofovir Alafenamide) | Brand | 137 | 18 | $199,590 |
| Carvedilol | Generic | 88 | 26 | $462 |
| Prednisone | Generic | 85 | 19 | $632 |
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 51 | 51 | $1,310 |
| Mycophenolic Acid (Mycophenolate Sodium) | Brand | 44 | 0 | $10,846 |
| Azathioprine | Generic | 38 | 0 | $1,364 |
Hospital affiliations
Frequently asked questions
What is Dr. Justin Mahr's medical specialty?
Dr. Justin Mahr practices Physician Assistant in Newark, DE.
Where does Dr. Justin Mahr practice?
Dr. Justin Mahr practices at 4755 Ogletown Stanton RD Ste 5A43, Newark, DE 197184250. Office phone: 3206230188.
What is Dr. Justin Mahr's NPI?
Dr. Justin Mahr's National Provider Identifier (NPI) is 1255981841, issued by NPPES.
Does Dr. Justin Mahr accept Medicare assignment?
Yes. Dr. Justin Mahr accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Justin Mahr commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.