Derek N Walcker, PMHNP - Medicare Nurse Practitioner in Columbia, MD

Derek N Walcker, PMHNP is a medicare enrolled "Nurse Practitioner - Psychiatric/mental Health" in Columbia, Maryland. His current practice location is 5850 Waterloo Rd Ste 140, Columbia, Maryland. You can reach out to his office (for appointments etc.) via phone at (410) 988-2503.

Derek N Walcker is licensed to practice in Maryland (license number R189093) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1285286831.

Contact Information

Derek N Walcker, PMHNP
5850 Waterloo Rd Ste 140,
Columbia, MD 21045-1944
(410) 988-2503
(410) 343-7899

Map and Direction




Provider's Profile

Full NameDerek N Walcker
GenderMale
SpecialityNurse Practitioner - Psychiatric/mental Health
Location5850 Waterloo Rd Ste 140, Columbia, Maryland
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1285286831
  • Provider Enumeration Date: 07/14/2019
  • Last Update Date: 08/16/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 2668701764
  • Enrollment ID: I20190916002430

Medical Identifiers

Medical identifiers for Derek N Walcker such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1285286831NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363LP0808XNurse Practitioner - Psychiatric/mental Health APRN.CNP.025119 (Ohio)Secondary
363LP0808XNurse Practitioner - Psychiatric/mental Health R189093 (Maryland)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Derek N Walcker allows following entities to bill medicare on his behalf.
Entity NameAlcove Ventures Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093191322
PECOS PAC ID: 1456669605
Enrollment ID: O20151007002805

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Derek N Walcker is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Derek N Walcker, PMHNP
3814 Plum Meadow Dr,
Ellicott City, MD 21042-5126

Ph: (240) 723-2671
Derek N Walcker, PMHNP
5850 Waterloo Rd Ste 140,
Columbia, MD 21045-1944

Ph: (410) 988-2503

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.