MARK KOSHAR M.D.
NPI 1538161963
Internal Medicine in Easton, PA

Active since August 15, 2005PECOS EnrolledAccepts Medicare Assignment
3735 NAZARETH RD, SUITE 301, EASTON, PA 18045(610) 829-2200(610) 829-2211 Get Directions Write a Review

NPPES record last updated: March 2, 2016. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Mark Koshar M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK KOSHAR M.D. (NPI 1538161963) is an individual internal medicine provider in Easton, Pennsylvania, licensed in Pennsylvania (MD016576E) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with St Luke's Warren Hospital, and is a graduate of Rutgers New Jersey Medical School (1974).

NPPES Registry Identity

NPI1538161963
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMARK KOSHARCredential: M.D.
Location Address3735 NAZARETH RD, SUITE 301Easton, PA 18045-8338
Mailing AddressPo Box 783311Philadelphia, PA 19178-3311 · (484) 884-4500 · Fax (484) 884-0699
Fax(610) 829-2211
Sole ProprietorNo
Medical School CMSRutgers New Jersey Medical SchoolGraduated 1974
Enumeration DateAugust 15, 2005
Last NPPES UpdateMarch 2, 2016
NPI 1538161963 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in PA · MD016576E
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

3735 NAZARETH RD, Easton, PA 18045

Other Identifiers 4

Medicare PIN045295U8GPA
Medicare UPIN045295QOEPA
Other45295PA · Blue Shield
Medicaid0006859310004PA

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Mark Koshar M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4880798669
PECOS Enrollment IDI20070404000179
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 14

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, denosumab, 1 mg J0897
Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.
3,540 services44 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
592 services343 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
351 services351 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
311 services204 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
237 services234 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
237 services234 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Luke's Warren Hospital

Acute Care Hospitals · Phillipsburg, NJ
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310060
Location185 Roseberry StPhillipsburg, NJ 08865 · Warren County
Emergency services

St Luke's Hospital Bethlehem

Acute Care Hospitals · Bethlehem, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390049
Location801 Ostrum StreetBethlehem, PA 18015 · Northampton County
Emergency services Birthing friendly

Lehigh Valley Hospital

Acute Care Hospitals · Allentown, PA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390133
Location1200 South Cedar Crest BoulevardAllentown, PA 18103 · Lehigh County
Emergency services Birthing friendly

St Luke's Hospital - Easton Campus

Acute Care Hospitals · Easton, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390162
Location250 South 21st StreetEaston, PA 18042 · Northampton County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 18045 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.34 typical visit price
range $54.64 – $166.87
Typical copayment $31.58 (range $13.66 – $41.71)
Most-billed visit code 99204
Established Patient
$96.82 typical visit price
range $17.33 – $135.84
Typical copayment $24.20 (range $4.33 – $33.96)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 13

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
19 suppliers80 claims184 services$5.65 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
10 suppliers26 claims30 services$0.80 avg. paid by Medicare
Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
1 supplier11 claims11 services$31.12 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
2 suppliers18 claims18 services$72.61 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
2 suppliers18 claims54 services$24.78 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
2 suppliers11 claims11 services$45.51 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Counselor (Professional)
3735 NAZARETH RD
EASTON, PA 18045
Surgery (Vascular Surgery)
3735 NAZARETH RD, SUITE 206
EASTON, PA 18045
Ophthalmology (Retina Specialist)
3735 NAZARETH RD, SUITE 205
EASTON, PA 18045
Internal Medicine
3735 NAZARETH RD, SUITE 301
EASTON, PA 18045
Durable Medical Equipment & Medical Supplies
3735 NAZARETH RD, SUITE 205
EASTON, PA 18045
Radiology (Diagnostic Radiology)
3735 NAZARETH RD, SUITE 206
EASTON, PA 18045
Family Medicine
3735 NAZARETH RD, SUITE 203
EASTON, PA 18045
Internal Medicine
3735 NAZARETH RD, SUITE 301
EASTON, PA 18045

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Koshar's NPI number?

The NPI number for Mark Koshar is 1538161963. It was assigned to this individual provider in the NPPES registry on August 15, 2005.

Where is Mark Koshar located?

Mark Koshar practices at 3735 Nazareth Rd Suite 301, Easton, PA 18045. The listed phone number is (610) 829-2200.

What is Mark Koshar's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mark Koshar enrolled in Medicare?

Yes. Mark Koshar is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Mark Koshar accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Mark Koshar as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mark Koshar affiliated with any hospitals?

According to CMS data, Mark Koshar is affiliated with St Luke's Warren Hospital, St Luke's Hospital Bethlehem, Lehigh Valley Hospital and St Luke's Hospital - Easton Campus.

When was this NPI record last updated?

The NPPES record for Mark Koshar was last updated on March 2, 2016. NPI Profile syncs with the weekly NPPES data releases published by CMS.