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GREGORY B CHRISTIANSEN MD
NPI 1972569465
Orthopaedic Surgery in Washington, PA

Active since April 24, 2006PECOS EnrolledAccepts Medicare Assignment
100 TRICH DRIVE, SUITE 2, WASHINGTON, PA 15301(724) 225-8657(724) 228-8388 Get Directions Write a Review

NPPES record last updated: January 21, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Gregory B Christiansen Md NPPES

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

GREGORY B CHRISTIANSEN MD (NPI 1972569465) is an individual orthopaedic surgery provider in Washington, Pennsylvania, licensed in Pennsylvania (MD065259L) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Advanced Surgical Hospital, and is a graduate of Medical College Of Ohio (1998).

NPPES Registry Identity

NPI1972569465
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameGREGORY B CHRISTIANSENCredential: MD
Location Address100 TRICH DRIVE, SUITE 2Washington, PA 15301-5987
Mailing Address100 Trich Drive, Suite 2Washington, PA 15301-5987 · (724) 225-8657 · Fax (724) 228-8388
Phone(724) 225-8657
Fax(724) 228-8388
Sole ProprietorNo
Medical School CMSMedical College Of OhioGraduated 1998
Enumeration DateApril 24, 2006
Last NPPES UpdateJanuary 21, 2020
✔ NPI 1972569465 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
License✔ Licensed in PA · MD065259L
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
100 TRICH DRIVE, Washington, PA 15301
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Other Identifiers 1

Medicaid001819566PA

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

Gregory B Christiansen Md 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 ID3173622156
PECOS Enrollment IDI20080911000657
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 Reassignment

Medicare enrollment records show Gregory Christiansen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Advanced Orthopaedic And Rehabilitation LLC
7.2 mi
Orthopaedic Surgery
100 TRICH DRIVE, SUITE 2
Washington, PA 15301
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 8 clinicians in this Medicare group
NPI 1134386246 (724) 225-8657

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 7

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, triamcinolone acetonide, not otherwise specified, 10 mg J3301
Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.
353 services107 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.
185 services119 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
153 services102 patients
X-ray of shoulder, minimum of 2 views 73030
An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.
103 services75 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.
100 services87 patients
X-ray of knee, 3 views 73562
An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.
78 services58 patients

Hospital Affiliations CMS Care Compare

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

Advanced Surgical Hospital

Acute Care Hospitals · Washington, PA
OwnershipPhysician
CMS Certification Number390323
Location100 Trich DriveWashington, PA 15301 · Washington County

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 15301 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
$84.88 typical visit price
range $54.64 – $166.87
Typical copayment $21.22 (range $13.66 – $41.71)
Most-billed visit code 99203
Established Patient
$68.36 typical visit price
range $17.33 – $135.84
Typical copayment $17.09 (range $4.33 – $33.96)
Most-billed visit code 99213
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

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

Shoulder elbow wrist hand orthosis, abduction positioning, airplane design, prefabricated, includes fitting and adjustment L3960
DME-Orthotic Devices · category DF000N
3 suppliers11 claims11 services$559.23 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.

ADVANCED ORTHOPAEDIC AND REHABILITATION LLC
Orthopaedic Surgery
100 TRICH DRIVE, SUITE 2
WASHINGTON, PA 15301
Washington County (724) 225-8657
ADVANCED SURGICAL HOSPITAL LLC
General Acute Care Hospital
100 TRICH DRIVE, SUITE 1
WASHINGTON, PA 15301
Washington County (724) 884-0710
ADVANCED ANESTHESIOLOGY SERVICES, LLC
Anesthesiology (Pain Medicine)
100 TRICH DRIVE, STE 3
WASHINGTON, PA 15301
Washington County (724) 582-4411

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 Gregory Christiansen's NPI number?

The NPI number for Gregory Christiansen is 1972569465. It was assigned to this individual provider in the NPPES registry on April 24, 2006.

Where is Gregory Christiansen located?

Gregory Christiansen practices at 100 Trich Drive Suite 2, Washington, PA 15301. The listed phone number is (724) 225-8657.

What is Gregory Christiansen's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Gregory Christiansen enrolled in Medicare?

Yes. Gregory Christiansen 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 organization bills Medicare for Gregory Christiansen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Christiansen reassigns Medicare benefits to Advanced Orthopaedic And Rehabilitation LLC (Washington, PA). The 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 Gregory Christiansen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Gregory Christiansen affiliated with any hospitals?

According to CMS data, Gregory Christiansen is affiliated with Advanced Surgical Hospital.

When was this NPI record last updated?

The NPPES record for Gregory Christiansen was last updated on January 21, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.