Physician Profile
Unclaimed ProfileAbout KNOWLES
Based in Portland, OR, Thomas B Knowles, MD is listed in the NPI registry under general surgery. Thomas graduated from Creighton University School of Medicine in 2014. Thomas is also listed as specialising in surgery.
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 is Dr. Knowles's specialty?
Dr. Knowles is a general surgeon in Portland, OR. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GENERAL SURGERY”.
NPI registry
Where can I find Dr. Knowles?
Dr. Knowles is listed at 1130 NW 22ND AVE STE 500, Portland, OR 97210. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Knowles?
The number on file is (503) 413-5725. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Knowles's NPI number?
Dr. Knowles's National Provider Identifier is 1114337466. 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
What is Dr. Knowles's medical education?
Dr. Knowles attended Creighton University School of Medicine, graduating in 2014. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Knowles been practising?
Dr. Knowles has 12 years experience. Calculated from a graduation year of 2014, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Knowles known for?
According to Medicare billing data, Dr. Knowles performs procedures including biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Knowles confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Knowles. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (503) 413-5725
- Email not available
Practice Locations
1130 NW 22ND AVE STE 500
Portland, OR 97210
Procedures Most Often Billed to Medicare
221 services · 181 patients · 6 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
19 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
58 |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
51 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
42 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
31 |
| Telephone medical discussion with physician, 5-10 minutes | Office visit | 99441 |
20 |
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.
Other general surgeons at this location 1
Same specialty, same street address — most likely the same department or group.
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 general surgeons in Portland 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Creighton University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2014 at Creighton University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 8
Providers in OR who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.