STEPHEN J WALLACE MD
NPI 1396162673
Orthopaedic Surgery - Orthopaedic Trauma in Lake Oswego, OR

NPI Status: Active since March 24, 2014

Contact Information

4103 MERCANTILE DR
LAKE OSWEGO, OR
ZIP 97035
Phone: (503) 850-9940
Fax: (503) 850-6709

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  • Individual
  • Male
  • Years of Experience 12
  • Orthopaedic Surgery
  • Orthopaedic Trauma
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About STEPHEN WALLACE

This page provides the complete NPI Profile along with additional information for Stephen Wallace, a provider established in Lake Oswego, Oregon with a medical specialization in Orthopaedic Surgery, focusing in orthopaedic trauma and more than 12 years of experience. He graduated from Baylor College Of Medicine in 2014. The healthcare provider is registered in the NPI registry with number 1396162673 assigned on March 2014. The practitioner's primary taxonomy code is 207XX0801X with license number MD206048 (OR). The provider is registered as an individual and his NPI record was last updated January 2026.

NPI
1396162673
Provider Name
STEPHEN J WALLACE MD
Gender
Male
Entity Type
Individual
Location Address
4103 MERCANTILE DR LAKE OSWEGO, OR 97035
Location Phone
(503) 850-9940
Location Fax
(503) 850-6709
Mailing Address
4103 MERCANTILE DR LAKE OSWEGO, OR 97035
Mailing Phone
(503) 850-9940
Mailing Fax
(503) 850-6709
Medical School Name
BAYLOR COLLEGE OF MEDICINE
Graduation Year
2014
Is Sole Proprietor?
No
Enumeration Date
03-24-2014
Last Update Date
01-08-2026
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Location Map

Secondary Locations

  • 325 9th Ave
    Seattle, WA 98104
    (206) 520-5000
  • 535 E 70th St
    New York, NY 10021
    (212) 606-1000
  • 2160 S 1st Ave
    Maywood, IL 60153
    (708) 216-3280

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Orthopaedic Surgery Orthopaedic Trauma

Taxonomy Code
207XX0801X
Type
Allopathic & Osteopathic Physicians
License No.
MD206048
License State
OR
Taxonomy Description
Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, orthopaedic trauma surgeons deal with the evaluation and management of acute orthopaedic injuries, evaluation and treatment of post-traumatic deformities and nonunions, acute and delayed reconstruction of pelvic and acetabular fractures, as well as osteotomy in the adult hip for treatment of hip arthritis.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207X00000XAllopathic & Osteopathic Physicians

Orthopaedic Surgery

MD206048 (OR)
2207X00000XAllopathic & Osteopathic Physicians

Orthopaedic Surgery

MD60932486 (WA)
3207XX0801XAllopathic & Osteopathic Physicians

Orthopaedic Surgery
Orthopaedic Trauma

MD60932486 (WA)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • BridgeSpan Standard Bronze Plan - EPO
  • BridgeSpan Standard Gold Plan - EPO
  • BridgeSpan Standard Silver Plan - EPO
  • Moda Health Affinity Bronze 8000 - EPO
  • Moda Health Affinity Bronze 9000 - EPO
  • Moda Health Affinity Bronze HDHP 7500 - EPO
  • Moda Health Affinity Gold 1000 - EPO
  • Moda Health Affinity Gold 1500 - EPO
  • Moda Health Affinity Gold 250 - EPO
  • Moda Health Affinity Silver 3000 - EPO
  • Moda Health Affinity Silver 3400 - EPO
  • Moda Health Affinity Silver 4500 - EPO
  • Moda Health Affinity Silver 6000 - EPO
  • Connect 1500 Gold - EPO
  • Connect 6000 Silver - EPO
  • Connect 9800 Bronze - EPO
  • HSA Qualified 7500 Bronze - Choice Network - EPO
  • HSA-E Qualified 7500 Bronze - Signature Network - EPO
  • Providence Oregon Standard Bronze Plan - Choice Network - EPO
  • Providence Oregon Standard Bronze Plan - Signature Network - EPO
  • Providence Oregon Standard Gold Plan - Choice Network - EPO
  • Providence Oregon Standard Gold Plan - Signature Network - EPO
  • Providence Oregon Standard Silver Plan - Choice Network - EPO
  • Bronze 8000 Individual Connect - EPO
  • Bronze Essential 9000 With 4 Copay No Deductible Office Visits Individual Connect - EPO
  • Bronze Essential 9000 With 4 Copay No Deductible Office Visits Legacy - EPO
  • Bronze HSA 7000 Individual Connect - EPO
  • Gold 2300 Individual Connect - EPO
  • Gold 2300 Legacy - EPO
  • Regence Standard Bronze Plan Individual Connect - EPO
  • Regence Standard Bronze Plan Legacy - EPO
  • Regence Standard Gold Plan Individual Connect - EPO
  • Regence Standard Gold Plan Legacy - EPO

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
1396162673MEDICAID (05)WA 

Medicare Participation & PECOS Enrollment Status

Stephen Wallace is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Stephen Wallace is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 9931402864

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20211122002255

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Established patient office or other outpatient visit, 30-39 minutes

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.

This service was performed 28 times for 21 patients

Hip replacement

A hip replacement is a surgical procedure where a worn-out or damaged hip joint is replaced with an artificial one. This procedure can greatly reduce pain and improve mobility. It's often recommended when other treatments like physical therapy or medications fail to alleviate symptoms.

This service was performed for 1-10 patients

Initial hospital inpatient care per day, typically 50 minutes

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

This service was performed 27 times for 27 patients

Insertion of wire or pin to bone for traction

This procedure involves placing a wire or pin into your bone to apply traction, helping to align and stabilize the bone for healing. It's commonly used for fractures or dislocations. You'll be given anesthesia for comfort during the procedure.

This service was performed 14 times for 14 patients

Treatment of broken neck of thigh bone with bone implant

This procedure involves repairing a fractured thigh bone by inserting a bone implant. The implant helps stabilize the bone, allowing it to heal correctly. It's performed under anesthesia and requires a hospital stay for recovery.

This service was performed 12 times for 12 patients

X-ray of ankle, minimum of 3 views

An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.

This service was performed 26 times for 12 patients

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Stephen Wallace is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
LEGACY EMANUEL MEDICAL CENTER2801 N GANTENBEIN AVENUE
PORTLAND, OR 97227
(503) 413-2200Acute Care Hospitals

Reviews for STEPHEN J WALLACE MD

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1396162673, we treat the final digit (3) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
3
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
6
Unchanged
Pos 5
1
Doubled → 2
Pos 6
6
Unchanged
Pos 7
2
Doubled → 4
Pos 8
6
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
3
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 9 → 18 → 9 1 → 2 2 → 4 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 3 + 1 + 8 + 6 + 2 + 6 + 4 + 6 + 1 + 4 + 24 = 67

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1396162673.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Pediatrics
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Orthopaedic Surgery
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Orthopaedic Surgery
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Orthopaedic Surgery
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Orthopaedic Surgery
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Orthopaedic Surgery
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Orthopaedic Surgery
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Physician Assistant
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Orthopaedic Surgery
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Physician Assistant
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Physician Assistant
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Nurse Practitioner (Acute Care)
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Physician Assistant (Surgical)
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Physician Assistant (Surgical)
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Occupational Therapist (Hand)
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Nurse Practitioner (Family)
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Orthopaedic Surgery
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Occupational Therapist (Hand)
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Registered Nurse (Registered Nurse First Assistant)
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035
Physician Assistant (Surgical)
4103 MERCANTILE DR
LAKE OSWEGO, OR 97035

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1396162673, enumerated as an "individual" on March 24, 2014.

The provider is located at 4103 MERCANTILE DR LAKE OSWEGO, OR 97035 and the phone number is (503) 850-9940.

Orthopaedic Surgery with taxonomy code 207XX0801X and a focus in Orthopaedic Trauma.

The provider might be accepting Accepts: BridgeSpan Health Company, Moda Health Plan, Inc.,. Please consult your insurance carrier or call the provider to verify.

Stephen Wallace is affiliated with: LEGACY EMANUEL MEDICAL CENTER.