Patrick Giesemann, MD - Medicare Family Practice in Newport Beach, CA

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Patrick Giesemann, MD is a medicare enrolled "Family Medicine" physician in Newport Beach, California. He went to Albany Medical College Of Union University and graduated in 1997 and has 29 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Hoag Clinic and his current practice location is 4041 Macarthur Blvd Ste 400, Newport Beach, California. You can reach out to his office (for appointments etc.) via phone at (949) 736-6100.

Patrick Giesemann is licensed to practice in California (license number A68293) 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 1649204785.

Contact Information

Patrick Giesemann, MD
4041 Macarthur Blvd Ste 400,
Newport Beach, CA 92660-2554
(949) 736-6100
(949) 736-6199

Map and Direction




Physician's Profile

Full NamePatrick Giesemann
GenderMale
SpecialityFamily Practice
Experience29 Years
Location4041 Macarthur Blvd Ste 400, Newport Beach, 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:
  • Patrick Giesemann attended and graduated from Albany Medical College Of Union University in 1997
  NPI Data:
  • NPI Number: 1649204785
  • Provider Enumeration Date: 07/11/2006
  • Last Update Date: 08/27/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 2365411055
  • Enrollment ID: I20040929000698

Medical Identifiers

Medical identifiers for Patrick Giesemann such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1649204785NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207QG0300XFamily Medicine - Geriatric Medicine A68293 (California)Secondary
207Q00000XFamily Medicine A68293 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Companion Home HealthOrange, CAHome health agency
Family Choice Hospice, IncOrange, CAHospice
Hoag Memorial Hospital PresbyterianNewport beach, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Hoag Clinic3274872064443

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. Patrick Giesemann 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
Patrick Giesemann, MD
4041 Macarthur Blvd Ste 400,
Newport Beach, CA 92660-2554

Ph: (949) 736-6100		Patrick Giesemann, MD
4041 Macarthur Blvd Ste 400,
Newport Beach, CA 92660-2554

Ph: (949) 736-6100

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).

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