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ZACHARY MARK WORKING MD
NPI 1790051084
Orthopaedic Surgery - Orthopaedic Trauma in Portland, OR

Active since March 30, 2012PECOS EnrolledAccepts Medicare Assignment
93.57/100
CMS Quality Rating
3181 SW SAM JACKSON PARK RD, PORTLAND, OR 97239(503) 494-6400 Get Directions Write a Review

NPPES record last updated: August 21, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Aug 21, 2024, Aug 30, 2018, Mar 17, 2018 and 1 more (4 updates tracked since 2017).

About Zachary Mark Working Md NPPES

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

ZACHARY MARK WORKING MD (NPI 1790051084) is an individual orthopaedic trauma provider in Portland, Oregon, licensed in Oregon (MD188610) and active in the NPI registry since March 2012. He is enrolled in Medicare PECOS, is affiliated with Ohsu Hospital And Clinics, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1790051084
Entity TypeIndividualMale
Primary Taxonomy207XX0801X
Provider Legal NameZACHARY MARK WORKINGCredential: MD
Location Address3181 SW SAM JACKSON PARK RDPortland, OR 97239-3011
Mailing AddressSam Jackson Hall, Suite 2360, 3181 S.w. Sam Jackson Park RoadPortland, OR 97239 · (503) 494-6406 · Fax (503) 494-5050
Phone(503) 494-6400
Sole ProprietorYes
Medical School CMSUniversity Of Pittsburgh School Of MedicineGraduated 2012
Enumeration DateMarch 30, 2012
Last NPPES UpdateAugust 21, 20244 updates tracked since enumeration
NPPES CertifiedAugust 21, 2024
✔ NPI 1790051084 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic Surgery · Orthopaedic TraumaAllopathic & Osteopathic Physicians
Taxonomy Code207XX0801X
License✔ Licensed in OR · MD188610
Definition
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.
Also ListedOrthopaedic SurgeryTaxonomy 207X00000X · License A148264 (CA)
3181 SW SAM JACKSON PARK RD, Portland, OR 97239
Open in Google Maps ↗

Secondary Practice Locations 2

Location 150 N Medical DrSalt Lake City, UT 84132-0001 · Phone (801) 581-2121
Location 2400 Parnassus AveSan Francisco, CA 94143-2202 · Phone (415) 476-1000

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Moda Health Plan, Inc., Regence BlueCross BlueShield of Oregon.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

Zachary Mark Working 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 ID9638302037
PECOS Enrollment IDI20180823000503
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 3

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.

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.
38 services25 patients
Therapy procedure using a special bandage, vacuum pump and disposable medical equipment, surface area 50.0 sq cm or less 97607
This procedure involves a special bandage and vacuum pump to promote healing in a wound area of 50.0 sq cm or less. The vacuum helps remove excess fluid and contaminants. Disposable medical equipment ensures cleanliness throughout the process.
18 services15 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
12 services12 patients

Hospital Affiliations CMS Care Compare

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

Ohsu Hospital And Clinics

Acute Care Hospitals · Portland, OR
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number380009
Location3181 SW Sam Jackson Park RoadPortland, OR 97239 · Multnomah County
Emergency services Birthing friendly

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

93.57/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality85.33
Promoting Interoperability100
Improvement Activities40

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.

DONALD RICHARD SULLIVAN MD
Internal Medicine (Pulmonary Disease)
3181 SW SAM JACKSON PARK RD, UHN67
PORTLAND, OR 97239
Multnomah County (503) 494-6949
MRS. ANJALEE NIX ROWE NP
Nurse Practitioner (Acute Care)
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 494-3988
REEM HASAN MD
Internal Medicine
3181 SW SAM JACKSON PARK RD, PPV 350
PORTLAND, OR 97239
Multnomah County (503) 494-8562
DR. AMANDA D BALL PSY.D
Psychologist (Clinical)
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 494-6176
SUNSHINE WELSCH LMT
Massage Therapist
3181 SW SAM JACKSON PARK RD, 7D19
PORTLAND, OR 97239
Multnomah County (503) 494-8349
DR. ROBERT GENE MEALER M.D., PH.D.
Psychiatry & Neurology (Psychiatry)
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 494-6176
GREGORY HALL MD
Radiology (Diagnostic Radiology)
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 418-0990
DR. BURHAN AHMED MIAN MD
Student in an Organized Health Care Education/Training Program
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 494-8311

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 Zachary Working's NPI number?

The NPI number for Zachary Working is 1790051084. It was assigned to this individual provider in the NPPES registry on March 30, 2012.

Where is Zachary Working located?

Zachary Working practices at 3181 SW Sam Jackson Park Rd, Portland, OR 97239. The listed phone number is (503) 494-6400.

What is Zachary Working's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Orthopaedic Trauma, with taxonomy code 207XX0801X.

Is Zachary Working enrolled in Medicare?

Yes. Zachary Working 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 Zachary Working accept?

Health plans from BridgeSpan Health Company, Moda Health Plan, Inc. and Regence BlueCross BlueShield of Oregon list Zachary Working 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 Zachary Working affiliated with any hospitals?

According to CMS data, Zachary Working is affiliated with Ohsu Hospital And Clinics.

When was this NPI record last updated?

The NPPES record for Zachary Working was last updated on August 21, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 months 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.