Doctor profile · Federal record
Dr. Margret Duncan, MD
Family Medicine Physician (CMS: Family Practice) · Holland, MI
- NPI 1114940434
- Accepts Medicare
- 29 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
336 S River Ave
Holland, MI 494233326
(616) 394-3788
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1997 — 29 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- Michigan #4301070620
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1114940434. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
287
Distinct HCPCS
8
Medicare allowed
$23,315
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 115 | 56 | $116 | |
83036 |
Hemoglobin a1c level | 48 | 25 | $10 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 41 | 21 | $153 | |
G0008 |
Administration of influenza virus vaccine | 26 | 24 | $27 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 19 | 16 | $79 | |
90686 |
Influenza vaccine, quadrivalent, preservative free, 0.5 ml dosage | 14 | 13 | $22 | |
81003 |
Automated urinalysis test | 12 | 11 | $2 | |
90662 |
Influenza vaccine split virus, preservative free | 12 | 12 | $60 |
In context: peer comparison
Among 19 peers in this city , average services per provider: 48. This provider delivers 6.0× the peer median.Open Payments
Industry payments received
All-time total
$25
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ConvaTec Inc. | 1 | $25.46 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,248
Patients
345
Total drug cost
$28,279
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 202 | 57 | $4,033 |
| Levothyroxine Sodium | Generic | 109 | 29 | $3,400 |
| Lisinopril | Generic | 91 | 26 | $1,275 |
| Gabapentin | Generic | 88 | 19 | $2,108 |
| Amlodipine Besylate | Generic | 82 | 24 | $1,006 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 73 | 17 | $1,787 |
| Fluticasone Propionate | Generic | 72 | 32 | $1,284 |
| Losartan Potassium | Generic | 72 | 19 | $1,175 |
| Metformin Hcl | Generic | 72 | 21 | $858 |
| Potassium Chloride | Generic | 69 | 16 | $4,429 |
Frequently asked questions
What is Dr. Margret Duncan's medical specialty?
Dr. Margret Duncan practices Family Medicine Physician in Holland, MI.
Where does Dr. Margret Duncan practice?
Dr. Margret Duncan practices at 336 S River Ave, Holland, MI 494233326. Office phone: 6163943788.
What is Dr. Margret Duncan's NPI?
Dr. Margret Duncan's National Provider Identifier (NPI) is 1114940434, issued by NPPES.
Does Dr. Margret Duncan accept Medicare assignment?
Yes. Dr. Margret Duncan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margret Duncan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Hemoglobin a1c level (HCPCS 83036); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.