Internal Medicine, Gastroenterology · Ann Arbor, MI
NPI
1689756108
Since 2006
Specialty
Internal Medicine, Gastroenterology
Code 207RG0100X
Group practices
2
Medicare group memberships
Hospitals
5
Hospital affiliations
1500 E Medical Center Dr
Ann Arbor, MI, 48109
Phone (734) 936-4000
Groups this clinician bills Medicare through
Medicare paid, 2024
$36K
384 services
Medicare patients, 2024
182
Average age 66
Drug cost, 2024
$1.2M
1,254 prescriptions
Company payments, 2025
$75.03
From 2 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Frederick K Askari was code 99233 (hospital e&m - subsequent), 112 times for 27 patients. In total Frederick K Askari billed 384 services in 34 codes, and Medicare paid $36K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2025-12-10.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99233 Hospital E&M - Subsequent | Facility | 112 | 27 | $90.10 | $10K |
| 99215 Office E&M - Established | Facility | 56 | 50 | $111.64 | $6,252 |
| 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 | 33 | 31 | $13.14 | $434 |
| 99214 Office E&M - Established | Facility | 32 | 32 | $72.09 | $2,307 |
| 45385 Colonoscopy - Lesion Removal | Office | 17 | 17 | $214.18 | $3,641 |
| 99205 Office E&M - New | Facility | 13 | 13 | $146.81 | $1,909 |
By year: 2022 $41K for 386 services; 2023 $48K for 463 services; 2024 $36K for 384 services.
Medicare prescription drug claims, 2024
In 2024, the drug Frederick K Askari prescribed most often to Medicare patients was Ursodiol, with 180 prescriptions and refills. In total Frederick K Askari wrote 1,254 Medicare prescriptions that cost $1.2M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Ursodiol Generic | 180 | 345 | 36 | $40K |
| Tacrolimus Generic | 127 | 244 | 28 | $12K |
| Prednisone Generic | 102 | 153 | 24 | $932 |
| Xifaxan Rifaximin | 91 | 93 | 14 | $292K |
| Cyclosporine Modified Cyclosporine, Modified | 69 | 113 | Under 11 | $12K |
| Spironolactone Generic | 68 | 192 | 23 | $1,775 |
| Furosemide Generic | 54 | 150 | 19 | $412 |
| Omeprazole Generic | 36 | 74 | 15 | $517 |
| Entecavir Generic | 34 | 60 | Under 11 | $2,285 |
| Envarsus Xr Tacrolimus | 30 | 38 | Under 11 | $13K |
| Azathioprine Generic | 30 | 86 | Under 11 | $3,102 |
| Peg 3350-Electrolyte Sodium Chloride/Nahco3/Kcl/Peg | 26 | 26 | 26 | $868 |
| Mycophenolate Mofetil Generic | 25 | 46 | Under 11 | $3,006 |
| Cuvrior Trientine Tetrahydrochloride | 22 | 22 | Under 11 | $349K |
| Lactulose Generic | 22 | 31 | Under 11 | $464 |
Brand drugs: - claims; generic drugs: 986 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Frederick K Askari $75.03 ($75.03 in general payments such as food, travel and fees) from 2 companies. The largest payer was Orphalan Inc with $75.03.
| Company | Payments | Amount |
|---|---|---|
| Orphalan Inc | 1 | $75.03 |
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.