Physician Profile
Anita E. Spiess, M.D.
Unclaimed ProfileAbout Dr. Spiess
Based in Chandler, AZ, Anita E. Spiess, M.D. is listed in the NPI registry under gastroenterology. Anita graduated from Northwestern University Feinberg Medical School in 1992. Medicare claims data shows Anita provided 650 services to 638 patients. The services billed most often include biopsy of large bowel using a flexible endoscope, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, and removal of polyps or growths of large bowel using an endoscope with mechanical snare. NPI 1609857457 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (480) 899-9800
- Email not available
Practice Locations
875 S. DOBSON RD SUITE 1
Chandler, AZ 85224
Conditions Commonly Evaluated or Treated
Within Gastroenterology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Acid reflux
- Celiac disease
- Crohn's disease
- Hemorrhoids
- IBS
- Swallowing difficulties
- Ulcerative colitis
Biliary and pancreas
Colon and anorectal
Esophagus and swallowing
Functional bowel and motility
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
Bowel & Colon
Digestive Symptoms
Gallbladder & Bile Ducts
Procedures & services
Most searched procedures
Lower endoscopy
Upper endoscopy
Capsule and physiology testing
Diagnostic Testing
Liver procedures
Treatments
Procedures Most Often Billed to Medicare
650 services · 638 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
172 | More than most peers in Gastroenterology |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
138 | More often than most peers in Gastroenterology |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
111 | More often than most peers in Gastroenterology |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
16 | As often as other peers in Gastroenterology |
| Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare | Procedure | 43251 |
15 | As often as other peers in Gastroenterology |
| Ultrasound scan of organ tissue for measuring elasticity | Imaging | 76981 |
17 | As often as other peers in Gastroenterology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
59 | As often as other peers in Gastroenterology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
45 | As often as other peers in Gastroenterology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
33 | As often as other peers in Gastroenterology |
| Colorectal cancer screening; colonoscopy on individual at high risk | Billing code | G0105 |
24 | As often as other peers in Gastroenterology |
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.
Other gastroenterologists at this location 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 30 related providers in 4 groups
Other gastroenterologists in Chandler 7
Same specialty, same city.
Trained at Northwestern University Feinberg Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 1992 at Northwestern University Feinberg Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of large bowel using a flexible endoscope 7
Providers in AZ who bill this service to Medicare most often.
Common questions
What does Anita E. Spiess specialize in?
Anita E. Spiess is a gastroenterologist in Chandler, AZ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where is Anita E. Spiess located?
Anita E. Spiess is listed at 875 S. Dobson Rd Suite 1, Chandler, AZ 85224. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Anita E. Spiess's phone number?
The number on file is (480) 899-9800. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Anita E. Spiess?
Anita E. Spiess's National Provider Identifier is 1609857457. 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 Anita E. Spiess train?
Anita E. Spiess attended Northwestern University Feinberg Medical School, graduating in 1992. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Anita E. Spiess have?
Anita E. Spiess has 34 years experience. Calculated from a graduation year of 1992, reported in the CMS National Downloadable File.
CMS public data
What does Anita E. Spiess do most often?
According to Medicare billing data, Anita E. Spiess performs procedures including biopsy of large bowel using a flexible endoscope, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope and removal of polyps or growths of large bowel using an endoscope with mechanical snare; reads or performs imaging such as ultrasound scan of organ tissue for measuring elasticity, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Anita E. Spiess's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Anita E. Spiess. If this is you, claiming it is free.
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