Doctor profile · Federal record
Dr. John Stam, MD
Internal Medicine Physician · Grand Rapids, MI
- NPI 1326269655
- 19 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
21 Michigan St Ne, Suite 525
Grand Rapids, MI 495032528
(616) 391-3775 - Mailing address
-
3746 Chamberlain Ave Se
Grand Rapids, MI 495082610
Credentials & registration
- NPI registered
- May 2007 — 19 yrs on file
- Profile last updated
- March 15, 2026
- Specialty taxonomy
- 207R00000X — NUCC code
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1326269655. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
115
Distinct HCPCS
2
Medicare allowed
$17,895
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 77 | 77 | $169 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 38 | 38 | $128 |
In context: peer comparison
Among 105 peers in this city , average services per provider: 82. This provider delivers 1.4× the peer median.Frequently asked questions
What is Dr. John Stam's medical specialty?
Dr. John Stam practices Internal Medicine Physician in Grand Rapids, MI.
Where does Dr. John Stam practice?
Dr. John Stam practices at 21 Michigan St Ne, Grand Rapids, MI 495032528. Office phone: 6163913775.
What is Dr. John Stam's NPI?
Dr. John Stam's National Provider Identifier (NPI) is 1326269655, issued by NPPES.
What procedures does Dr. John Stam commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.