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Edit this profileAt a glance
- 1500 East Medical Center Dr, 3Rd Floor Taubman Ctr Recp D, Ann Arbor, MI 48109
About Dr. Fontana
Based in Ann Arbor, MI, Robert J. Fontana, MD is listed in the NPI registry under gastroenterology. Robert graduated from University of Michigan Medical School in 1988. Robert is also listed as specializing in internal medicine. Medicare claims data shows Robert provided 235 services to 169 patients. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, measurement of liver stiffness, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. NPI 1700968237 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
- (734) 647-5944
- Email not available
Practice Locations
1500 EAST MEDICAL CENTER DR 3RD FLOOR TAUBMAN CTR RECP D
Ann Arbor, MI 48109
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
235 services · 169 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Measurement of liver stiffness | Treatment | 91200 |
50 | More often than most peers in Gastroenterology |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
72 | More often than most 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 |
47 | As often as other peers in Gastroenterology |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
40 | As often as other peers in Gastroenterology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
14 | Less often than most peers in Gastroenterology |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
12 | Less often than most 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 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
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 Ann Arbor 8
Same specialty, same city.
Trained at University of Michigan Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 1988 at University of Michigan Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Measurement of liver stiffness 6
Providers in MI who bill this service to Medicare most often.
Common questions
What does Dr. Fontana specialize in?
Dr. Fontana is a gastroenterologist in Ann Arbor, MI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where is Dr. Fontana located?
Dr. Fontana is listed at 1500 East Medical Center Dr 3Rd Floor Taubman Ctr Recp D, Ann Arbor, MI 48109. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Fontana's phone number?
The number on file is (734) 647-5944. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Fontana?
Dr. Fontana's National Provider Identifier is 1700968237. 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. Fontana go to medical school?
Dr. Fontana attended University of Michigan Medical School, graduating in 1988. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Fontana have?
Dr. Fontana has 38 years experience. Calculated from a graduation year of 1988, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Fontana do most often?
According to Medicare billing data, Dr. Fontana provides treatments such as measurement of liver stiffness, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Fontana's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Fontana. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.