28 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Mills, Gastroenterologist in Phoenix, AZ?
Dr. Michael Mills, MD is a Gastroenterologist, who primarily practices in Phoenix, AZ with 2 additional practice locations. He has been practicing for over 28 years and is board certified. Dr. Mills graduated from Tulane Univ School of Medicine and completed his residency at Good Samaritan Reg Med Ctr, Gastroenterology; Univ Of Co Sch Of Med, Internal Medicine. Dr. Mills is fluent in English and Spanish, and is currently seeing new patients. Dr. Mills’s practice accepts Cigna, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Mills’s office at (602) 266-5678.
Where did Dr. Mills go to medical school and complete their residency?
Residency: Good Samaritan Reg Med Ctr, Gastroenterology; Univ Of Co Sch Of Med, Internal Medicine | University of Colorado Program A
Medical School: Tulane Univ Sch of Med, New Orleans La | Tulane Univ School of Medicine
Is Dr. Mills board certified as a Gastroenterologist?
Yes, Dr. Michael Mills, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Mills speak?
Dr. Mills and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Mills treat?
As a Gastroenterologist, Dr. Mills 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. Mills. 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:
- 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:
- 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:
- Difficulty Swallowing
- Swallowing Disorder
- Dysphagia
- Trouble swallowing
- Painful swallowing
ICD-10 Codes:
- R1310: Dysphagia, unspecified
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal Polyps
- Intestinal Polyps
- Bowel Polyps
ICD-10 Codes:
- Z86010: Personal history of colon polyps
Also known as:
- Diarrhea
- Loose stools
- Runny poop
- Frequent bowel movements
ICD-10 Codes:
- R197: Diarrhea, unspecified
Also known as:
- Follow-up After Treatment (Non-Cancer)
- Post-Treatment Check-up
- Aftercare Visit
- Recovery Monitoring Exam
ICD-10 Codes:
- Z09: Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm
Also known as:
- Ulcerative Pancolitis
- Ulcerative Colitis
- Chronic Pancolitis
- Extensive Ulcerative Colitis
- Inflammatory Bowel Disease (IBD)
ICD-10 Codes:
- K5100: Ulcerative (chronic) pancolitis without complications
What procedures does Dr. Mills perform?
As a Gastroenterologist, Dr. Mills 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. Mills. 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 Polyp Removal
- Colonoscopy with Biopsy
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy with Polypectomy
- Colon Polyp Removal
- Colorectal Lesion Excision
- Flexible Colonoscopy
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
- Colon Exam with Biopsy
- Lower Endoscopy
- Colon Cancer Screening
CPT Codes:
- 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
- 45380: Colonoscopy, flexible; with biopsy, single or multiple
- 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
- Esophagus Widening Procedure (Endoscopic)
- EGD with Esophageal Balloon Dilation
- Colonoscopy with Injections
- Colonoscopy
- Colorectal Cancer Screening Tests
- EGD with Biopsy
- Esophagogastroduodenoscopy
- Upper GI Endoscopy
- Stomach Scope with Sample
- Esophageal Dilation
- EGD with Dilation
- Upper Endoscopy with Widening
- Upper Endoscopy with Esophageal Dilation
- Flexible Esophagoscopy with Balloon
- EGD with Balloon Widening
- 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)
- 43248: Esophagogastroduodenoscopy, flexible, transoral; with insertion of guide wire followed by passage of dilator(s) through esophagus over guide wire
- 43249: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic balloon dilation of esophagus (less than 30 mm diameter)
- 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance
Also known as:
- Flexible Sigmoidoscopy
- Colorectal Cancer Screening Tests
- Sigmoidoscopy
- Lower colon exam
- Flexible colon scope
- Rectum and lower colon check
CPT Codes:
- 45330: Sigmoidoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Also known as:
- Esophageal Motility Study
- Esophageal Balloon Distension Study
- Esophageal manometry
- Swallowing function test
- GERD test
- Esophageal pressure study
- Esophageal distension test
- Balloon provocation test
- Esophageal pain study
CPT Codes:
- 91010: Esophageal motility (manometric study of the esophagus and/or gastroesophageal junction) study with interpretation and report;
- 91040: Esophageal balloon distension study, diagnostic, with provocation when performed
Also known as:
- Capsule Endoscopy
- Pill Camera
- Wireless Capsule Endoscopy
- Small Bowel Capsule Endoscopy
- Intestinal Imaging Pill
CPT Codes:
- 91110: Gastrointestinal tract imaging, intraluminal (eg, capsule endoscopy), esophagus through ileum, with interpretation and report
Also known as:
- Wireless Esophageal pH Test
- Esophageal pH Test
- Bravo pH Test
- Esophageal Reflux Monitoring
- Acid Reflux Test
CPT Codes:
- 91035: Esophagus, gastroesophageal reflux test; with mucosal attached telemetry pH electrode placement, recording, analysis and interpretation
Also known as:
- Esophageal pH and Impedance Test
- Esophageal pH Test
- GERD Test
- Acid Reflux Test
- Esophageal Impedance Monitoring
- 24-Hour pH Study
CPT Codes:
- 91037: Esophageal function test, gastroesophageal reflux test with nasal catheter intraluminal impedance electrode(s) placement, recording, analysis and interpretation;
Also known as:
- Swallowing Study (Videofluoroscopy)
- Dysphagia Tests
- Videofluoroscopic Swallowing Study (VFSS)
- Modified Barium Swallow (MBS)
- Dysphagia Evaluation
CPT Codes:
- 92611: Motion fluoroscopic evaluation of swallowing function by cine or video recording
Does Dr. Mills accept my insurance?
Dr. Mills accepts most major insurance plans. Important: Please call our office at (602) 266-5678 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Mills accept in Phoenix, AZ?
Dr. Mills in Phoenix, AZ accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Banner Health
Blue Cross Blue Shield of Arizona
Crown Cork and Seal Company
CVS Health (formerly Aetna)
Express Scripts
Medicare
StableView Health
State of Tennessee
UnitedHealthcare
View All Insurances
Where is Dr. Mills' office located?
What is Dr. Mills's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Mills's National Provider Identifier (NPI) number is 1811948359.
What common questions do patients ask about Dr. Mills?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Mills
What is Dr. Michael Mills's specialty?
Dr. Mills 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. Mills to book an appointment today.
Is this Dr. Michael Mills affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Mills is affiliated with Banner - University Medical Center Phoenix, Banner Boswell Medical Center, Banner Gateway Medical Center, HonorHealth John C. Lincoln Medical Center, Banner Thunderbird Medical Center, HonorHealth Scottsdale Shea Medical Center which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They 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 Michael Mills accepting new patients in Phoenix, AZ?
Yes, Dr. Michael Mills is accepting new patients at this time.
Does Dr. Michael Mills offer online booking?
Please contact Dr. Mills's office at (602) 266-5678 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Michael Mills?
Please contact Dr. Mills's office at (602) 266-5678 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Michael Mills have?
Dr. Michael Mills is certified by the American Board of Internal Medicine.
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