Physician Profile
Unclaimed ProfileAbout CLARK
Based in Portland, OR, Wayne Marston Clark, MD is listed in the NPI registry under neurology. Wayne graduated from Oregon Health Sciences University School of Medicine in 1985.
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
Areas of Expertise
Common questions
What does Dr. Clark specialise in?
Dr. Clark is a neurology in Portland, OR. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “NEUROLOGY”.
NPI registry
Where is Dr. Clark located?
Dr. Clark 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
What is Dr. Clark's phone number?
The number on file is (503) 494-7772. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Clark's NPI number?
Dr. Clark's National Provider Identifier is 1356357958. 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. Clark go to medical school?
Dr. Clark attended Oregon Health Sciences University School of Medicine, graduating in 1985. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Clark been practising?
Dr. Clark has 41 years experience. Calculated from a graduation year of 1985, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Clark do most often?
According to Medicare billing data, Dr. Clark the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Clark confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Clark. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (503) 494-7772
- Email not available
Practice Locations
3181 SW SAM JACKSON PARK RD
Portland, OR 97239
Procedures Most Often Billed to Medicare
569 services · 280 patients · 7 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
336 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
85 |
| Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by t | Billing code | G0316 |
69 |
| Hospital discharge day management, more than 30 minutes | Office visit | 99239 |
37 |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
16 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
14 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
12 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
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 neurology specialists in Portland 8
Same specialty, same city.
More connections — 14 related providers in 2 groups
Trained at Oregon Health Sciences University School of Medicine 6
Other providers in the same specialty who trained at the same institution.
Class of 1985 at Oregon Health Sciences University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.