Internal Medicine, Gastroenterology · Ann Arbor, MI
NPI
1700968237
Since 2006
Specialty
Internal Medicine, Gastroenterology
Code 207RG0100X
Group practices
2
Medicare group memberships
Hospitals
2
Hospital affiliations
1500 East Medical Center Dr, 3rd Floor Taubman Ctr Recp D
Ann Arbor, MI, 48109
Phone (734) 647-5944
Groups this clinician bills Medicare through
Medicare paid, 2024
$21K
317 services
Medicare patients, 2024
156
Average age 67
Drug cost, 2024
$465K
1,433 prescriptions
Company payments, 2025
$6,922
From 3 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Robert J Fontana was code 99233 (hospital e&m - subsequent), 72 times for 21 patients. In total Robert J Fontana billed 317 services in 34 codes, and Medicare paid $21K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2012-03-09.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99233 Hospital E&M - Subsequent | Facility | 72 | 21 | $90.74 | $6,534 |
| 91200 Standard X-ray | Facility | 50 | 50 | $6.44 | $322 |
| 99214 Office E&M - Established | Facility | 47 | 39 | $76.93 | $3,616 |
| G2211 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's | Facility | 40 | 35 | $12.81 | $512 |
| 99215 Office E&M - Established | Facility | 14 | 13 | $107.43 | $1,504 |
| 99223 Hospital E&M - Initial | Facility | 12 | 11 | $138.22 | $1,659 |
By year: 2022 $32K for 429 services; 2023 $29K for 387 services; 2024 $21K for 317 services.
Medicare prescription drug claims, 2024
In 2024, the drug Robert J Fontana prescribed most often to Medicare patients was Tacrolimus, with 225 prescriptions and refills. In total Robert J Fontana wrote 1,433 Medicare prescriptions that cost $465K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Tacrolimus Generic | 225 | 460 | 47 | $40K |
| Ursodiol Generic | 109 | 200 | 26 | $20K |
| Prednisone Generic | 98 | 133 | 22 | $1,073 |
| Pravastatin Sodium Generic | 85 | 203 | 23 | $1,022 |
| Omeprazole Generic | 72 | 130 | 18 | $1,376 |
| Mycophenolate Mofetil Generic | 71 | 109 | 12 | $7,541 |
| Xifaxan Rifaximin | 60 | 60 | Under 11 | $190K |
| Furosemide Generic | 60 | 120 | 19 | $367 |
| Cyclosporine Modified Cyclosporine, Modified | 59 | 119 | Under 11 | $12K |
| Azathioprine Generic | 55 | 121 | 13 | $2,573 |
| Alendronate Sodium Generic | 45 | 108 | 12 | $455 |
| Spironolactone Generic | 42 | 101 | 15 | $619 |
| Entecavir Generic | 38 | 60 | Under 11 | $2,921 |
| Atorvastatin Calcium Generic | 35 | 75 | Under 11 | $354 |
| Lactulose Generic | 34 | 57 | 11 | $2,253 |
Brand drugs: 195 claims; generic drugs: 1,238 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Robert J Fontana $6,922 ($6,922 in general payments such as food, travel and fees) from 3 companies. The largest payer was F. Hoffmann-La Roche AG with $6,888.
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.