Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Patrick Giesemann, MD

Individual provider Geriatric Medicine (Family Medicine) Physician · NPI 1649204785

Patrick Giesemann, MD is a Family Practice in Newport Beach, California. Graduated from Albany Medical College of Union University in 1997, 29 years ago. Practices with Hoag Clinic, a 443-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
29
Trained at
Albany Medical College of Union University
Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4041 Macarthur Blvd Ste 400
Newport Beach, CA 92660-2554
Phone: (949) 736-6100
Fax: (949) 736-6199
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence A68293 (CA)
Geriatric Medicine (Family Medicine) Physician Taxonomy 207QG0300X · Licence A68293 (CA)

Record details

NPI number1649204785
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 11, 2006
Last updated in NPPESAugust 27, 2025
Certification dateAugust 27, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolALBANY MEDICAL COLLEGE OF UNION UNIVERSITY
Graduated 1997 (29 years in practice)
Group practice Hoag Clinic — 443 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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