ROBERT STEPHEN WALKER MD
NPI 1639531908
Orthopaedic Surgery - Hand Surgery in Scottsdale, AZ

Active since March 24, 2016PECOS EnrolledAccepts Medicare Assignment
7960 E THOMPSON PEAK PKWY, SCOTTSDALE, AZ 85255(877) 821-4657 Get Directions Write a Review

NPPES record last updated: November 4, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Nov 4, 2025, Aug 11, 2022, Mar 24, 2016 (3 updates tracked since 2016).

About Robert Stephen Walker Md NPPES

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

ROBERT STEPHEN WALKER MD (NPI 1639531908) is an individual hand surgery provider in Scottsdale, Arizona, licensed in Arizona (65804) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS and is a graduate of University Of Arizona College Of Medicine - Phoenix (2021).

NPPES Registry Identity

NPI1639531908
Entity TypeIndividualMale
Primary Taxonomy207XS0106X
Provider Legal NameROBERT STEPHEN WALKERCredential: MD
Location Address7960 E THOMPSON PEAK PKWYScottsdale, AZ 85255-7406
Mailing Address7960 E Thompson Peak Pkwy Ste 104Scottsdale, AZ 85255-7406 · (877) 821-4657
Sole ProprietorNo
Medical School CMSUniversity Of Arizona College Of Medicine - PhoenixGraduated 2021
Enumeration DateMarch 24, 2016
Last NPPES UpdateNovember 4, 20253 updates tracked since enumeration
NPPES CertifiedNovember 4, 2025
NPI 1639531908 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyOrthopaedic Surgery · Hand SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207XS0106X
License Licensed in AZ · 65804
Definition
An orthopaedic surgeon trained in the investigation, preservation and restoration by medical, surgical and rehabilitative means of all structures of the upper extremity directly affecting the form and function of the hand and wrist.
Also ListedOrthopaedic SurgeryTaxonomy 207X00000X · License 65804 (AZ)
7960 E THOMPSON PEAK PKWY, Scottsdale, AZ 85255

Accepted 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

Robert Stephen Walker 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 ID4486912243
PECOS Enrollment IDI20220824003090
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 21

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.

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301
Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.
821 services147 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
175 services123 patients
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.
173 services136 patients
Fluoroscopic guidance for needle placement 77002
Fluoroscopic guidance for needle placement is a medical procedure that uses a special X-ray technology to help accurately place a needle in the body. It's often used in biopsies, injections or other treatments to ensure precision and safety.
150 services109 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
119 services82 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
99 services99 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85255 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$85.89 typical visit price
range $55.44 – $168.60
Typical copayment $21.47 (range $13.86 – $42.15)
Most-billed visit code 99203
Established Patient
$69.24 typical visit price
range $17.72 – $137.41
Typical copayment $17.31 (range $4.43 – $34.35)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Clinic/Center (Primary Care)
7960 E THOMPSON PEAK PKWY, SUITE 104- B
SCOTTSDALE, AZ 85255
Physical Therapist
7960 E THOMPSON PEAK PKWY, SUITE 101
SCOTTSDALE, AZ 85255
Physical Therapist
7960 E THOMPSON PEAK PKWY
SCOTTSDALE, AZ 85255
Physical Therapist
7960 E THOMPSON PEAK PKWY, SUITE 102
SCOTTSDALE, AZ 85255
Specialist
7960 E THOMPSON PEAK PKWY, SUITE B
SCOTTSDALE, AZ 85255

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 Robert Walker's NPI number?

The NPI number for Robert Walker is 1639531908. It was assigned to this individual provider in the NPPES registry on March 24, 2016.

Where is Robert Walker located?

Robert Walker practices at 7960 E Thompson Peak Pkwy, Scottsdale, AZ 85255. The listed phone number is (877) 821-4657.

What is Robert Walker's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Hand Surgery, with taxonomy code 207XS0106X.

Is Robert Walker enrolled in Medicare?

Yes. Robert Walker 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 Robert Walker accept?

Health plans from Ambetter from Arizona Complete Health, Oscar Health Plan, Inc. and UnitedHealthcare list Robert Walker 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.

When was this NPI record last updated?

The NPPES record for Robert Walker was last updated on November 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.