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DR. GEORGE ISAJIW M.D.
NPI 1861509135
Internal Medicine in Lansdowne, PA

Active since August 24, 2006PECOS EnrolledAccepts Medicare Assignment
23 N LANSDOWNE AVE, LANSDOWNE, PA 19050(610) 626-4397 Get Directions Write a Review

NPPES record last updated: October 31, 2013. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. George Isajiw M.d. NPPES

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

DR. GEORGE ISAJIW M.D. (NPI 1861509135) is an individual internal medicine provider in Lansdowne, Pennsylvania, licensed in Pennsylvania (MD012611E) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Hospital Of Univ Of Pennsylvania, and is a graduate of Jefferson Medical College Of Thomas Jefferson University (1970).

NPPES Registry Identity

NPI1861509135
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. GEORGE ISAJIWCredential: M.D.
Location Address23 N LANSDOWNE AVELansdowne, PA 19050-2205
Mailing Address23 N Lansdowne AveLansdowne, PA 19050-2205
Phone(610) 626-4397
Sole ProprietorYes
Medical School CMSJefferson Medical College Of Thomas Jefferson UniversityGraduated 1970
Enumeration DateAugust 24, 2006
Last NPPES UpdateOctober 31, 2013
✔ NPI 1861509135 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in PA · MD012611E
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.
Also ListedCustodial Care FacilityTaxonomy 311Z00000X · License MD012611E (PA)
23 N LANSDOWNE AVE, Lansdowne, PA 19050
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. George Isajiw 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 ID8628973781
PECOS Enrollment IDI20031203000184
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.

Medicare Billing Reassignments

2

Medicare enrollment records show George Isajiw reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Gi Medical Associates
0.1 mi
Internal Medicine
23 N LANSDOWNE AVE
Lansdowne, PA 19050
  • Reassigned Medicare billing, Pennsylvania enrollment
NPI 1821192816 (610) 626-4397
Better Health Wellness, LLC
6.7 mi
Family Medicine
38 JACKSON ST STE 2H
Philadelphia, PA 19148
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 7 clinicians in this Medicare group
NPI 1063926798 (215) 694-9769

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

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.
1,260 services13 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.
365 services117 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.
206 services112 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
33 services24 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
21 services13 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
13 services13 patients

Hospital Affiliations CMS Care Compare 5

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

Hospital Of Univ Of Pennsylvania

Acute Care Hospitals · Philadelphia, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390111
Location34th & Spruce StsPhiladelphia, PA 19104 · Philadelphia County
Emergency services Birthing friendly

Bryn Mawr Hospital

Acute Care Hospitals · Bryn Mawr, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390139
Location130 South Bryn Mawr AveBryn Mawr, PA 19010 · Montgomery County
Emergency services Birthing friendly

Mercy Catholic Medical Center- Mercy Fitzgerald

Acute Care Hospitals · Darby, PA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390156
Location1500 Lansdowne AveDarby, PA 19023 · Delaware County
Emergency services

Main Line Hospital Lankenau

Acute Care Hospitals · Wynnewood, PA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390195
Location100 Lancaster AveWynnewood, PA 19096 · Montgomery County
Emergency services Birthing friendly

Riddle Memorial Hospital

Acute Care Hospitals · Media, PA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390222
Location1068 West Baltimore PikeMedia, PA 19063 · Delaware County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19050 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
$137.17 typical visit price
range $59.88 – $180.99
Typical copayment $34.29 (range $14.97 – $45.24)
Most-billed visit code 99204
Established Patient
$105.21 typical visit price
range $19.30 – $147.29
Typical copayment $26.30 (range $4.82 – $36.82)
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 3

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

Bedside drainage bag, day or night, with or without anti-reflux device, with or without tube, each A4357
DME-Orthotic Devices · category DF000N
3 suppliers11 claims17 services$8.89 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers12 claims12 services$67.94 avg. paid by Medicare
Standard wheelchair K0001
DME-Wheelchairs · category DD000N
1 supplier12 claims12 services$14.86 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 3

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

GEORGE L. YARNELL, D.P.M.
Podiatrist
23 N LANSDOWNE AVE
LANSDOWNE, PA 19050
Delaware County (610) 626-3338
GI MEDICAL ASSOCIATES
Internal Medicine
23 N LANSDOWNE AVE
LANSDOWNE, PA 19050
Delaware County (610) 626-4397
GI MEDICAL ASSOCIATES
Internal Medicine
23 N LANSDOWNE AVE
LANSDOWNE, PA 19050
Delaware County (610) 626-4397

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 George Isajiw's NPI number?

The NPI number for George Isajiw is 1861509135. It was assigned to this individual provider in the NPPES registry on August 24, 2006.

Where is George Isajiw located?

George Isajiw practices at 23 N Lansdowne Ave, Lansdowne, PA 19050. The listed phone number is (610) 626-4397.

What is George Isajiw's specialty?

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

Is George Isajiw enrolled in Medicare?

Yes. George Isajiw 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.

Which organizations bill Medicare for George Isajiw's services?

According to the CMS Revalidation Reassignment List (October 2026 release), George Isajiw reassigns Medicare benefits to 2 organizations: Gi Medical Associates (Lansdowne, PA) and Better Health Wellness, LLC (Philadelphia, PA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for George Isajiw's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does George Isajiw accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list George Isajiw 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 George Isajiw affiliated with any hospitals?

According to CMS data, George Isajiw is affiliated with Hospital Of Univ Of Pennsylvania, Bryn Mawr Hospital, Mercy Catholic Medical Center- Mercy Fitzgerald, Main Line Hospital Lankenau and Riddle Memorial Hospital.

When was this NPI record last updated?

The NPPES record for George Isajiw was last updated on October 31, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.