John W Witczak, DO - Medicare in Mission Viejo, CA

John W Witczak, DO is a medicare enrolled "Orthopaedic Surgery" physician in Mission Viejo, California. His current practice location is 26921 Crown Valley Pkwy, Ste 201, Mission Viejo, California. You can reach out to his office (for appointments etc.) via phone at (949) 348-2250.

John W Witczak is licensed to practice in California (license number 20A4682) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1811913825.

Contact Information

John W Witczak, DO
26921 Crown Valley Pkwy, Ste 201,
Mission Viejo, CA 92691-6501
(949) 348-2250
(949) 348-8904

Map and Direction




Physician's Profile

Full NameJohn W Witczak
GenderMale
Speciality
Experience Years
Location26921 Crown Valley Pkwy, Mission Viejo, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • John W Witczak attended and graduated from in
  NPI Data:
  • NPI Number: 1811913825
  • Provider Enumeration Date: 07/14/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID:
  • Enrollment ID:

Medical Identifiers

Medical identifiers for John W Witczak such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1811913825NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207X00000XOrthopaedic Surgery 20A4682 (California)Primary

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. John W Witczak 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
John W Witczak, DO
26921 Crown Valley Pkwy, Ste 201,
Mission Viejo, CA 92691-6501

Ph: (949) 348-2250
John W Witczak, DO
26921 Crown Valley Pkwy, Ste 201,
Mission Viejo, CA 92691-6501

Ph: (949) 348-2250

Reviews and Comments


Orthopaedic Surgery Doctors in Mission Viejo, CA

Michael S Marandola, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 26401 Crown Valley Pkwy, Suite 101, Mission Viejo, CA 92691
Phone: 949-348-4000    
Kent R Adamson, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 26401 Crown Valley Pkwy, Suite 101, Mission Viejo, CA 92691
Phone: 949-348-4000    Fax: 949-348-4090
Herbert Eidt, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 26730 Crown Valley Pkwy, Suite 200, Mission Viejo, CA 92691
Phone: 949-364-2154    Fax: 949-364-2110
Dr. Mark E. Elzik, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 26730 Crown Valley Pkwy, Suite 200, Mission Viejo, CA 92691
Phone: 949-364-2154    
James Benjamin Chen, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 26401 Crown Valley Pkwy Ste 101, Mission Viejo, CA 92691
Phone: 949-348-4000    Fax: 949-348-7466
Dr. Gary Jack Phipps, M.D.
Orthopedic Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 26720 Crown Valley Parkway, Suite 200, Mission Viejo, CA 92691
Phone: 949-364-2154    Fax: 949-364-2110
Evan Michael Guerrero, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 26401 Crown Valley Pkwy Ste 101, Mission Viejo, CA 92691
Phone: 949-348-4020    Fax: 949-348-7466

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.