Doctor profile · Federal record
Dr. Douglas Zwemer, MD
Surgery Physician (CMS: General Surgery) · Muskegon, MI
- NPI 1386734184
- Accepts Medicare
- 33 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1745 Holton RD Ste C
Muskegon, MI 494451453
(231) 747-9902
fax (855) 761-1953
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- February 5, 2020
- Year of graduation
- 1993 — 33 yrs since
- Specialty taxonomy
- 208600000X — NUCC code
- State license (1)
- Michigan #D2061383
- Medicaid
- MI #3453681
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1386734184. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
149
Distinct HCPCS
6
Medicare allowed
$18,651
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 56 | 20 | $76 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 29 | 29 | $156 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 20 | 11 | $115 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 16 | 16 | $168 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 14 | 14 | $104 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 14 | 14 | $243 |
In context: peer comparison
Among 5 peers in Muskegon Surgery Physician, average services per provider: 37. This provider delivers 4.0× the peer median.Open Payments
Industry payments received
All-time total
$63
Transactions
3
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| W. L. Gore & Associates, INC. | 1 | $21.71 | |
| ConvaTec INC. | 1 | $20.85 | |
| Abbvie INC. | 1 | $19.94 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
126
Patients
99
Total drug cost
$507
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 58 | 54 | $159 |
| Promethazine Hcl | Generic | 46 | 45 | $66 |
| Gabapentin | Generic | 11 | 0 | $101 |
| Omeprazole | Generic | 11 | 0 | $182 |
Hospital affiliations
Frequently asked questions
What is Dr. Douglas Zwemer's medical specialty?
Dr. Douglas Zwemer practices Surgery Physician in Muskegon, MI.
Where does Dr. Douglas Zwemer practice?
Dr. Douglas Zwemer practices at 1745 Holton RD Ste C, Muskegon, MI 494451453. Office phone: 2317479902.
What is Dr. Douglas Zwemer's NPI?
Dr. Douglas Zwemer's National Provider Identifier (NPI) is 1386734184, issued by NPPES.
Does Dr. Douglas Zwemer accept Medicare assignment?
Yes. Dr. Douglas Zwemer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Douglas Zwemer commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); New patient office or other outpatient visit (HCPCS 99204); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.