Doctor profile · Federal record
Dr. Margaret Tuinstra, NP
Family Nurse Practitioner (CMS: Nurse Practitioner) · Bethesda, MD
- NPI 1457045981
- Accepts Medicare
- 4 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
6410 Rockledge Dr
Bethesda, MD 208171809
(301) 897-5307 - Mailing address
-
9409 Gamba CT
Vienna, VA 221821609
Credentials & registration
- NPI registered
- June 2023 — 3 yrs on file
- Year of graduation
- 2022 — 4 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State license (1)
- Maryland #AC005318
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1457045981. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
382
Distinct HCPCS
3
Medicare allowed
$28,501
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 153 | 137 | $120 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 133 | 129 | $14 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 96 | 93 | $86 |
In context: peer comparison
Among 14 peers in Bethesda Family Nurse Practitioner, average services per provider: 127. This provider delivers 3.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
28
Patients
0
Total drug cost
$12,175
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 17 | 0 | $240 |
| Eliquis (Apixaban) | Brand | 11 | 0 | $11,936 |
Hospital affiliations
Frequently asked questions
What is Dr. Margaret Tuinstra's medical specialty?
Dr. Margaret Tuinstra practices Family Nurse Practitioner in Bethesda, MD.
Where does Dr. Margaret Tuinstra practice?
Dr. Margaret Tuinstra practices at 6410 Rockledge Dr, Bethesda, MD 208171809. Office phone: 3018975307.
What is Dr. Margaret Tuinstra's NPI?
Dr. Margaret Tuinstra's National Provider Identifier (NPI) is 1457045981, issued by NPPES.
Does Dr. Margaret Tuinstra accept Medicare assignment?
Yes. Dr. Margaret Tuinstra accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Tuinstra commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.