Physician Profile
Unclaimed ProfileAbout WALKER
Based in Tucson, AZ, Gregory Trent Walker, MD is listed in the NPI registry under orthopedic surgery. Gregory is also listed as specialising in student in an organized health care education program and orthopaedic foot & ankle 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 does Dr. Walker specialise in?
Dr. Walker is an orthopedic surgeon in Tucson, AZ. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ORTHOPEDIC SURGERY”.
NPI registry
Where is Dr. Walker located?
Dr. Walker is listed at 6130 N LA CHOLLA BLVD STE 135A, Tucson, AZ 85741. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Walker's phone number?
The number on file is (520) 881-1394. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Walker?
Dr. Walker's National Provider Identifier is 1801250659. 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. Walker go to medical school?
Dr. Walker attended Other, graduating in 2016. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Walker have?
Dr. Walker has 10 years experience. Calculated from a graduation year of 2016, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Walker do most often?
According to Medicare billing data, Dr. Walker performs procedures including closed treatment of broken bone in forefoot or midfoot; reads or performs imaging such as x-ray of ankle, minimum of 3 views and x-ray of foot, minimum of 3 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Walker's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Walker. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (520) 881-1394
- Email not available
Practice Locations
6130 N LA CHOLLA BLVD STE 135A
Tucson, AZ 85741
Procedures Most Often Billed to Medicare
592 services · 422 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Closed treatment of broken bone in forefoot or midfoot | Procedure | 28470 |
15 |
| X-ray of ankle, minimum of 3 views | Imaging | 73610 |
90 |
| X-ray of foot, minimum of 3 views | Imaging | 73630 |
18 |
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Drug given | J3301 |
148 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
97 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
78 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
64 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
39 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
26 |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | Office visit | 99221 |
17 |
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 orthopedic surgeons in Tucson 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 11 related providers in 2 groups
Class of 2016 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Closed treatment of broken bone in forefoot or midfoot 3
Providers in AZ 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.