Doctor profile · Federal record
Dr. Derek Walcker, PMHNP
Psychiatric/Mental Health Nurse Practitioner (CMS: Nurse Practitioner) · Psychiatric/Mental Health Nurse Practitioner · Columbia, MD
- NPI 1285286831
- Accepts Medicare
- 7 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
5850 Waterloo RD Ste 140
Columbia, MD 210451944
(410) 988-2503
fax (410) 343-7899 - Mailing address
-
3814 Plum Meadow Dr
Ellicott City, MD 210425126
Credentials & registration
- NPI registered
- July 2019 — 7 yrs on file
- Profile last updated
- August 16, 2020
- Year of graduation
- 2019 — 7 yrs since
- Specialty taxonomy
- 363LP0808X — NUCC code
- State licenses (2)
- Maryland #R189093 · Ohio #APRN.CNP.025119
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1285286831. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$20
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABBVIE INC. | 1 | $19.51 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
66
Patients
0
Total drug cost
$1,126
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Clozapine | Generic | 40 | 0 | $237 |
| Clonidine Hcl | Generic | 13 | 0 | $138 |
| Quetiapine Fumarate | Generic | 13 | 0 | $751 |
Frequently asked questions
What is Dr. Derek Walcker's medical specialty?
Dr. Derek Walcker practices Psychiatric/Mental Health Nurse Practitioner in Columbia, MD.
Where does Dr. Derek Walcker practice?
Dr. Derek Walcker practices at 5850 Waterloo RD Ste 140, Columbia, MD 210451944. Office phone: 4109882503.
What is Dr. Derek Walcker's NPI?
Dr. Derek Walcker's National Provider Identifier (NPI) is 1285286831, issued by NPPES.
Does Dr. Derek Walcker accept Medicare assignment?
Yes. Dr. Derek Walcker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.