Doctor profile · Federal record
Dr. Joel Knaack, DO
Internal Medicine Physician (CMS: Internal Medicine) · Traverse City, MI
- NPI 1841236460
- Accepts Medicare
- 20 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1105 Sixth St
Traverse City, MI 496842349
(231) 935-5000
fax (231) 346-6017 - Mailing address
-
Po Box 27127
Lansing, MI 489097127
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- August 1, 2016
- Year of graduation
- 2006 — 20 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Michigan #5101016880
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1841236460. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
692
Distinct HCPCS
5
Medicare allowed
$76,179
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 383 | 170 | $115 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 152 | 82 | $76 | |
99239 |
Hospital discharge day management, more than 30 minutes | 117 | 114 | $110 | |
99291 |
Critical care, first 30-74 minutes | 22 | 16 | $207 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 18 | 18 | $168 |
In context: peer comparison
Among 27 peers in this city , average services per provider: 105. This provider delivers 6.6× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
91
Patients
76
Total drug cost
$511
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Furosemide | Generic | 15 | 15 | $45 |
| Pantoprazole Sodium | Generic | 15 | 14 | $128 |
| Atorvastatin Calcium | Generic | 13 | 0 | $109 |
| Cephalexin | Generic | 13 | 13 | $64 |
| Oxycodone Hcl | Generic | 13 | 12 | $60 |
| Amlodipine Besylate | Generic | 11 | 11 | $63 |
| Prednisone | Generic | 11 | 11 | $42 |
Hospital affiliations
Frequently asked questions
What is Dr. Joel Knaack's medical specialty?
Dr. Joel Knaack practices Internal Medicine Physician in Traverse City, MI.
Where does Dr. Joel Knaack practice?
Dr. Joel Knaack practices at 1105 Sixth St, Traverse City, MI 496842349. Office phone: 2319355000.
What is Dr. Joel Knaack's NPI?
Dr. Joel Knaack's National Provider Identifier (NPI) is 1841236460, issued by NPPES.
Does Dr. Joel Knaack accept Medicare assignment?
Yes. Dr. Joel Knaack accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Joel Knaack commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.