Physician Profile
Zachary M. Working, MD
Unclaimed ProfileAbout Dr. Working
Zachary M. Working, MD practices orthopaedic trauma in Portland, OR. Zachary is a 2012 graduate of University of Pittsburgh School of Medicine. Zachary is also listed as specializing in orthopaedic surgery. According to Medicare claims data, Zachary cared for 52 Medicare patients across 68 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, therapy procedure using a special bandage, vacuum pump and disposable medical equipment, surface area 50.0 sq cm or less, and initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (503) 494-6400
- Email not available
Practice Locations
3181 SW SAM JACKSON PARK RD
Portland, OR 97239
50 N Medical Dr
Salt Lake City, UT 84132
400 Parnassus Ave
San Francisco, CA 94143
Procedures Most Often Billed to Medicare
68 services · 52 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Therapy procedure using a special bandage, vacuum pump and disposable medical equipment, surface area 50.0 sq cm or less | Treatment | 97607 |
18 | Too few peers to compare |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
38 | As often as other peers in Orthopaedic Trauma |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
12 | Less often than most peers in Orthopaedic Trauma |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other orthopaedic traumas in Portland 3
Same specialty, same city.
Trained at University of Pittsburgh School of Medicine 4
Other providers in the same specialty who trained at the same institution.
More connections — 9 related providers in 2 groups
Class of 2012 at University of Pittsburgh School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Therapy procedure using a special bandage, vacuum pump and disposable medical equipment, surface area 50.0 sq cm or less 1
Providers in OR who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Working?
Dr. Working is an orthopaedic trauma in Portland, OR. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Dr. Working's address?
Dr. Working is listed at 3181 Sw Sam Jackson Park Rd, Portland, OR 97239. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Working?
The number on file is (503) 494-6400. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Working's NPI number?
Dr. Working's National Provider Identifier is 1790051084. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Working train?
Dr. Working attended University of Pittsburgh School of Medicine, graduating in 2012. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Working been practicing?
Dr. Working has 14 years experience. Calculated from a graduation year of 2012, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Working perform?
According to Medicare billing data, Dr. Working provides treatments such as therapy procedure using a special bandage, vacuum pump and disposable medical equipment, surface area 50.0 sq cm or less, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Working confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Working. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.