30 Years of Experience
Accepting patients
Who is Dr. Walker, Gastroenterologist in Phoenix, AZ?
Dr. Robert Walker, MD is a Gastroenterologist, who primarily practices in Phoenix, AZ with 2 additional practice locations. He has been practicing for over 30 years. Dr. Walker graduated from New York Medical College and completed his residency at McGaw Med Ctr Of Northwestern, Gastroenterology; Northwestern Mem Hosp, Internal Medicine. Dr. Walker is fluent in English and Spanish, and is currently seeing new patients. Dr. Walker’s practice accepts Cigna, Kaiser Permanente, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Walker’s office at (845) 703-6999.
Where did Dr. Walker go to medical school and complete their residency?
Residency: McGaw Med Ctr Of Northwestern, Gastroenterology; Northwestern Mem Hosp, Internal Medicine | Northwestern Memorial Hospital | Brigham & Women's Hospital Program
Medical School: New York Med Coll- Valhalla Ny | New York Medical College
What languages does Dr. Walker speak?
Dr. Walker and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Walker treat?
As a Gastroenterologist, Dr. Walker diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Walker. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Colon Cancer Screening
- Health Screening
- Colorectal Cancer Screening (PDQ®)
- Screening Tests to Detect Colorectal Cancer and Polyps
- Tests to Detect Colorectal Cancer and Polyps
- Colorectal Cancer Screening
- Colonoscopy Screening
- Bowel Cancer Screening
ICD-10 Codes:
- Z1211: Encounter for screening for malignant neoplasm of colon
Also known as:
- Acid Reflux
- GERD
- Acid Reflux (GER & GERD) in Adults
- Acid Reflux (GER & GERD) in Children
- Acid Reflux (GER & GERD) in Infants
- Gastroesophageal Reflux
- Heartburn
- Indigestion
ICD-10 Codes:
- K219: Gastro-esophageal reflux disease without esophagitis
Also known as:
- Exposure to COVID-19
- COVID-19 (Coronavirus Disease 2019)
- COVID-19 contact
- Suspected coronavirus exposure
- SARS-CoV-2 exposure
ICD-10 Codes:
- Z20822: Contact with and (suspected) exposure to COVID-19
Also known as:
- Chronic Stomach Inflammation
- Stomach Disorder
- Gastritis & Gastropathy
- Chronic gastritis
- Long-term stomach inflammation
- Persistent stomach lining inflammation
ICD-10 Codes:
- K2950: Unspecified chronic gastritis without bleeding
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal polyps
- Bowel polyps
- Intestinal polyps
ICD-10 Codes:
- K635: Polyp of colon
Also known as:
- Benign Colon Polyp
- Benign Tumor
- Colonic Disease
- Colon Polyps
- Non-cancerous colon growth
- Colon adenoma
- Benign colon tumor
ICD-10 Codes:
- D126: Benign neoplasm of colon, unspecified
Also known as:
- Pre-Procedure Lab Tests
- Pre-op blood work
- Lab tests before surgery
- Pre-treatment lab assessment
ICD-10 Codes:
- Z01812: Encounter for preprocedural laboratory examination
What procedures does Dr. Walker perform?
As a Gastroenterologist, Dr. Walker performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Walker. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Colonoscopy with Biopsy
- Colonoscopy with Polyp Removal
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
- Flexible Colonoscopy with Polypectomy
- Colon Polyp Removal
- Colorectal Lesion Excision
- Colon Exam with Biopsy
- Lower Endoscopy
- Colon Cancer Screening
CPT Codes:
- 45380: Colonoscopy, flexible; with biopsy, single or multiple
- 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
- 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Also known as:
- Upper Endoscopy with Biopsy
- Biopsy
- Endoscopy
- EGD with Biopsy
- Gastroscopy with Biopsy
- Esophagogastroduodenoscopy with Biopsy
CPT Codes:
- 43239: Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple
Also known as:
- Diagnostic Upper Endoscopy with Biopsy
- Colonoscopy with Injections
- Colonoscopy
- Colorectal Cancer Screening Tests
- EGD with Biopsy
- Esophagogastroduodenoscopy
- Upper GI Endoscopy
- Stomach Scope with Sample
- Flexible Colonoscopy with Injection
- Colon Scope with Medication
- Therapeutic Colonoscopy
CPT Codes:
- 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance
Does Dr. Walker accept my insurance?
Dr. Walker accepts most major insurance plans. Important: Please call our office at (845) 703-6999 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Walker accept in Phoenix, AZ?
Dr. Walker in Phoenix, AZ accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Banner Health
Blue Cross Blue Shield of Arizona
Express Scripts
Humana
Medicare
Mercy Care Plan
OptumRx
PacificSource
State of Tennessee
UnitedHealthcare
View All Insurances
Where is Dr. Walker's office located?
Dr. Robert Walker's Primary Practice
9250 N 3rd St Ste 2015
Phoenix, AZ 85020
(845) 703-6999
What is Dr. Walker's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Walker's National Provider Identifier (NPI) number is 1396727129.
What common questions do patients ask about Dr. Walker?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Walker
What is Dr. Robert Walker's specialty?
Dr. Walker is a Gastroenterologist near Phoenix, AZ. An internist focused on diagnosing and treating disorders of the digestive system, encompassing the stomach, intestines, liver, and gallbladder. This specialist manages conditions like abdominal pain, ulcers, diarrhea, cancer, and jaundice, and performs intricate diagnostic and therapeutic procedures using endoscopes to examine internal organs. Contact Dr. Walker to book an appointment today.
Is this Dr. Robert Walker affiliated with a ranked Castle Connolly Top Hospital?
No, Walker is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Garnet Health Medical Center. Castle Connolly Top Hospitals are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Gastroenterologist?
Explore Gastroenterologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Robert Walker accepting new patients in Phoenix, AZ?
Yes, Dr. Robert Walker is accepting new patients at this time.
Does Dr. Robert Walker offer online booking?
Please contact Dr. Walker's office at (845) 703-6999 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Robert Walker?
Please contact Dr. Walker's office at (845) 703-6999 for information regarding telehealth appointment availability or for scheduling assistance.
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