Dr Mark C Walker I, MD - Medicare Psychiatry & Neurology in Palm Beach, FL

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Dr Mark C Walker I, MD is a medicare enrolled "Psychiatry & Neurology - Psychiatry" physician in Palm Beach, Florida. His current practice location is 234 Oleander Ave Apt 6, Palm Beach, Florida. You can reach out to his office (for appointments etc.) via phone at (352) 497-5920.

Dr Mark C Walker I is licensed to practice in Florida (license number ME108732) 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 1427318864.

Contact Information

Dr Mark C Walker I, MD
234 Oleander Ave Apt 6,
Palm Beach, FL 33480-3824
(352) 497-5920
(561) 629-5240

Map and Direction




Physician's Profile

Full NameDr Mark C Walker I
GenderMale
SpecialityPsychiatry & Neurology - Psychiatry
Location234 Oleander Ave Apt 6, Palm Beach, Florida
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1427318864
  • Provider Enumeration Date: 05/19/2012
  • Last Update Date: 01/21/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 8729224878
  • Enrollment ID: I20130417000131

Medical Identifiers

Medical identifiers for Dr Mark C Walker I such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1427318864NPI-NPPES
100556600MedicaidFL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0800XPsychiatry & Neurology - Psychiatry ME108732 (Florida)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. Dr Mark C Walker I allows following entities to bill medicare on his behalf.
Entity NameHarm Reduction Center Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346735107
PECOS PAC ID: 5890196737
Enrollment ID: O20210629001900
Entity NameMcw Psych Care Md Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699438549
PECOS PAC ID: 2365831666
Enrollment ID: O20211108000533

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. Dr Mark C Walker I 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
Dr Mark C Walker I, MD
234 Oleander Ave Apt 6,
Palm Beach, FL 33480-3824

Ph: (352) 497-5920		Dr Mark C Walker I, MD
234 Oleander Ave Apt 6,
Palm Beach, FL 33480-3824

Ph: (352) 497-5920

Reviews and Comments


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Phone: 561-659-9020    Fax: 561-820-8780

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.