Dr. Patrick S. Giesemann, MD
- Part D claims, 2022
- 46
- Hospital affiliations
- 1
- Industry payments
- $20
- Medical group
- 1
- State license
- 1
- Practice address
- 510 Superior Ave, Newport Beach, CA 92663
- Practice phone
- Call (949) 764-5700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hoag Clinic - Newport Beach
Urgent Care Center · Newport Beach, California
Find Dr. Giesemann's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Patrick S. Giesemann is a family medicine physician in Newport Beach, California
Dr. Giesemann practices at Hoag Clinic - Newport Beach in Newport Beach, California.
Dr. Giesemann's NPI, 1649204785, was assigned on July 11, 2006. Dr. Giesemann graduated from Albany Medical College of Union University in 1997. Dr. Giesemann holds California license A68293.
- NPI
- 1649204785NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2365411055
- NPI enumeration date
- July 11, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (949) 764-5700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Patrick S. Giesemann practices at Hoag Clinic - Newport Beach in Newport Beach, California
Dr. Giesemann's primary practice is Hoag Clinic - Newport Beach, at 510 Superior Ave, Newport Beach, CA 92663. The practice phone is (949) 764-5700.
- Hoag Clinic - Newport Beach510 Superior Ave, Newport Beach, CA 92663Phone(949) 764-5700
Source: Dmand AI Affiliation Data
Dr. Patrick S. Giesemann is affiliated with 4 sites of care and 1 medical group
Dr. Giesemann's primary practice is Hoag Clinic - Newport Beach in Newport Beach, California. Dr. Giesemann is also affiliated with Hoag Hospital Newport Beach. The medical group on file is Hoag Clinic. Dmand AI also links Dr. Giesemann to 1 more home health agency and 1 hospice, each named with a free account. Dr. Giesemann's employer is on file too: an urgent care center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Patrick S. Giesemann's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Giesemann practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hoag Clinic - Newport Beach | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Patrick S. Giesemann is one of 15,680 family medicine physicians in California
Family medicine is Dr. Giesemann's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Giesemann is licensed in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Family medicine physicians near Dr. Giesemann
Counts of family medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Patrick S. Giesemann's patients have a median age of 87
Across all payers, Dmand AI patient panel data puts Dr. Giesemann's median patient age at 87, with 63% women.
Dr. Giesemann's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 87
Patient panel by sex, all payers
- Women63%
- Men37%
Source: Dmand AI Patient Panel Data
Dr. Patrick S. Giesemann wrote 46 Medicare Part D claims in 2022
In 2022, Dr. Giesemann wrote 46 Medicare Part D claims. Every claim was for a generic drug. They cover 3 drugs, with $562 in total drug cost. In 2021, CMS named 180 claims across 6 drugs.
Dr. Giesemann's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 1802022: 4674%
Drugs named by CMS: 3 in 2022, 6 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Patrick S. Giesemann takes part in Medicare
Dr. Giesemann accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Patrick S. Giesemann received $20 in industry payments in 2024
CMS Open Payments shows 2 general payments to Dr. Giesemann from 2 drug and device companies in 2024. Education make up the largest share, 82% of the total. Agios Pharmaceuticals, Inc. paid the most, $17.
General payments to Dr. Giesemann by kind, 2024 to 2024
- Education$1782%
- Food and beverage$418%
Companies that paid Dr. Giesemann the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Patrick S. Giesemann graduated from Albany Medical College of Union University
Dr. Giesemann graduated from Albany Medical College of Union University in 1997.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Patrick S. Giesemann's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Patrick S. Giesemann
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Patrick S. Giesemann's NPI number?
Dr. Patrick S. Giesemann's NPI number is 1649204785. It was assigned on July 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Patrick S. Giesemann?
Dr. Patrick S. Giesemann is a family medicine physician in Newport Beach, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Patrick S. Giesemann practice?
Dr. Giesemann practices at 510 Superior Ave, Newport Beach, CA 92663. Dr. Giesemann's primary practice is Hoag Clinic - Newport Beach in Newport Beach, California. Dmand AI also links Dr. Giesemann to 1 home health agency and 1 hospice.
What is Dr. Patrick S. Giesemann's office phone number?
The practice phone on file for Dr. Giesemann is (949) 764-5700.
What is Dr. Patrick S. Giesemann's medical license number?
Dr. Giesemann holds California license A68293.
Which hospitals is Dr. Patrick S. Giesemann affiliated with?
Dr. Giesemann is affiliated with Hoag Hospital Newport Beach.
What medical group is Dr. Patrick S. Giesemann part of?
Dr. Giesemann is linked to Hoag Clinic.
Does Dr. Patrick S. Giesemann accept Medicare?
Yes. CMS lists Dr. Giesemann as accepting Medicare assignment.
Where did Dr. Patrick S. Giesemann go to medical school?
Dr. Giesemann graduated from Albany Medical College of Union University in 1997.
What drugs does Dr. Patrick S. Giesemann prescribe most?
In 2022 Medicare Part D data, Dr. Giesemann's most prescribed drugs by claims were Atorvastatin Calcium, Metformin HCl and Tamsulosin HCl.
Has Dr. Patrick S. Giesemann received payments from drug or device companies?
CMS Open Payments shows $20 in general payments to Dr. Giesemann from 2 companies from 2024 to 2024. The largest total came from Agios Pharmaceuticals, Inc.
How long has Dr. Patrick S. Giesemann been practicing?
Dr. Giesemann graduated from medical school in 1997, 29 years ago.
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