Doctor profile · Federal record
Dr. Michael Allan, MD
Gastroenterology Physician (CMS: Gastroenterology) · Madison, WI
- NPI 1558300822
- Accepts Medicare
- 29 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
700 S Park St
Madison, WI 537151830
(608) 260-2900
fax (608) 260-2977
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- October 27, 2020
- Year of graduation
- 1997 — 29 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Wisconsin #45234-020
- Medicaid (2)
- WI #34403900 · WI #1558300822
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1558300822. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,037
Distinct HCPCS
10
Medicare allowed
$102,974
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
G0500 |
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 281 | 277 | $5 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 255 | 252 | $232 | |
36415 |
Insertion of needle into vein for collection of blood sample | 101 | 47 | $8 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 63 | 60 | $73 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 42 | 38 | $84 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 40 | 40 | $96 | |
43249 |
Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm | 36 | 32 | $116 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 33 | 31 | $119 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 33 | 26 | $75 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 28 | 17 | $8 |
In context: peer comparison
Among 20 peers in this city , average services per provider: 38. This provider delivers 27× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
848
Patients
500
Total drug cost
$310,511
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gavilyte-C (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 288 | 284 | $6,283 |
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 97 | 95 | $1,779 |
| Omeprazole | Generic | 89 | 35 | $2,211 |
| Azathioprine | Generic | 51 | 16 | $3,146 |
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 45 | 45 | $1,096 |
| Colestipol Hcl | Generic | 41 | 0 | $6,931 |
| Pantoprazole Sodium | Generic | 41 | 12 | $929 |
| Xifaxan (Rifaximin) | Brand | 28 | 0 | $89,361 |
| Humira(Cf) Pen (Adalimumab) | Brand | 26 | 0 | $171,154 |
| Loperamide (Loperamide Hcl) | Brand | 25 | 0 | $899 |
Hospital affiliations
Frequently asked questions
What is Dr. Michael Allan's medical specialty?
Dr. Michael Allan practices Gastroenterology Physician in Madison, WI.
Where does Dr. Michael Allan practice?
Dr. Michael Allan practices at 700 S Park St, Madison, WI 537151830. Office phone: 6082602900.
What is Dr. Michael Allan's NPI?
Dr. Michael Allan's National Provider Identifier (NPI) is 1558300822, issued by NPPES.
Does Dr. Michael Allan accept Medicare assignment?
Yes. Dr. Michael Allan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Allan commonly perform?
Top Medicare-reported procedures in 2023: Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (HCPCS G0500); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.