Doctor profile · Federal record
Dr. Mark Koshar, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Easton, PA
- NPI 1538161963
- Accepts Medicare
- 52 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3735 Nazareth RD, Suite 301
Easton, PA 180458338
(610) 829-2200
fax (610) 829-2211 - Mailing address
-
Po Box 783311
Philadelphia, PA 191783311
Credentials & registration
- NPI registered
- August 2005 — 21 yrs on file
- Profile last updated
- March 2, 2016
- Year of graduation
- 1974 — 52 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Pennsylvania #MD016576E
- Medicaid
- PA #0006859310004
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1538161963. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
7,274
Distinct HCPCS
10
Medicare allowed
$336,007
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J0897 |
Injection, denosumab, 1 mg | 4,680 | 48 | $23 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 671 | 365 | $124 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 358 | 358 | $124 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 322 | 218 | $86 | |
G0008 |
Administration of influenza virus vaccine | 266 | 260 | $29 | |
90662 |
Influenza vaccine split virus, preservative free | 259 | 257 | $72 | |
96372 |
Injection of drug or substance under skin or into muscle | 140 | 58 | $14 | |
0124A |
Adm sarscv2 bvl 30mcg/.3ml a | 136 | 134 | $39 | |
90480 |
Admn sarscov2 vacc 1 dose | 116 | 116 | $39 | |
91320 |
Sarscv2 vac 30mcg trs-suc im | 116 | 116 | $128 |
In context: peer comparison
Among 25 peers in Easton Internal Medicine Physician, average services per provider: 176. This provider delivers 41× the peer median.Open Payments
Industry payments received
All-time total
$153
Transactions
3
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen INC. | 3 | $152.99 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
5,082
Patients
1,326
Total drug cost
$70,792
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 784 | 211 | $7,129 |
| Atorvastatin Calcium | Generic | 688 | 193 | $8,909 |
| Levothyroxine Sodium | Generic | 531 | 120 | $8,637 |
| Simvastatin | Generic | 509 | 137 | $5,460 |
| Losartan Potassium | Generic | 379 | 100 | $5,487 |
| Lisinopril | Generic | 296 | 87 | $3,470 |
| Alprazolam | Generic | 284 | 55 | $2,320 |
| Metoprolol Succinate | Generic | 223 | 62 | $4,586 |
| Lorazepam | Generic | 222 | 45 | $2,402 |
| Metformin Hcl | Generic | 208 | 53 | $2,507 |
Hospital affiliations
Frequently asked questions
What is Dr. Mark Koshar's medical specialty?
Dr. Mark Koshar practices Internal Medicine Physician in Easton, PA.
Where does Dr. Mark Koshar practice?
Dr. Mark Koshar practices at 3735 Nazareth RD, Easton, PA 180458338. Office phone: 6108292200.
What is Dr. Mark Koshar's NPI?
Dr. Mark Koshar's National Provider Identifier (NPI) is 1538161963, issued by NPPES.
Does Dr. Mark Koshar accept Medicare assignment?
Yes. Dr. Mark Koshar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Koshar commonly perform?
Top Medicare-reported procedures in 2023: Injection, denosumab, 1 mg (HCPCS J0897); Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.