Doctor profile · Federal record
Dr. Joseph Kolars, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Gastroenterology Physician · Hepatology Physician · Ann Arbor, MI
- NPI 1447222005
- Accepts Medicare
- 44 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1500 E Medical Center Dr
Ann Arbor, MI 481095000
(734) 936-4000 - Mailing address
-
3621 S State St
Ann Arbor, MI 481081633
Credentials & registration
- NPI registered
- February 2006 — 20 yrs on file
- Profile last updated
- May 20, 2020
- Year of graduation
- 1982 — 44 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- Michigan #4301051651 · Minnesota #28528
- Medicaid (3)
- WI #35169200 · MN #887526000 · IA #ENROLLED
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1447222005. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
75
Distinct HCPCS
3
Medicare allowed
$11,802
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 37 | 34 | $99 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 21 | 21 | $259 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 17 | 17 | $159 |
In context: peer comparison
Among 24 peers in Ann Arbor Gastroenterology Physician, average services per provider: 25. This provider delivers 3.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
66
Patients
23
Total drug cost
$52,628
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 23 | 23 | $690 |
| Creon (Lipase/Protease/Amylase) | Brand | 19 | 0 | $51,116 |
| Famotidine | Generic | 12 | 0 | $318 |
| Pyridostigmine Bromide | Generic | 12 | 0 | $505 |
Hospital affiliations
Frequently asked questions
What is Dr. Joseph Kolars's medical specialty?
Dr. Joseph Kolars practices Gastroenterology Physician in Ann Arbor, MI.
Where does Dr. Joseph Kolars practice?
Dr. Joseph Kolars practices at 1500 E Medical Center Dr, Ann Arbor, MI 481095000. Office phone: 7349364000.
What is Dr. Joseph Kolars's NPI?
Dr. Joseph Kolars's National Provider Identifier (NPI) is 1447222005, issued by NPPES.
Does Dr. Joseph Kolars accept Medicare assignment?
Yes. Dr. Joseph Kolars accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Joseph Kolars commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.