Dr. Agathon A. Girgis, MD
- Part D claims, 2024
- 3,440
- Publications
- 3
- Hospital affiliations
- 1
- Industry payments
- $49
- Medical group
- 1
- Practice address
- 3806 Clayton Rd, Concord, CA 94521
- Practice phone
- Call (925) 689-2266
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Windsor Convalescent and Rehab Center of Concord
Concord, California
Find Dr. Girgis' 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. Agathon A. Girgis is a hospitalist in Concord, California
Dr. Girgis practices at Windsor Convalescent and Rehab Center of Concord in Concord, California.
Dr. Girgis' NPI, 1568840635, was assigned on May 11, 2015. Dr. Girgis holds California license 153179.
- NPI
- 1568840635NPI Registry (opens in a new tab)
- NPI enumeration date
- May 11, 2015
- NPI status
- Active
- Practice phone
- (925) 689-2266
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Agathon A. Girgis practices at Windsor Convalescent and Rehab Center of Concord in Concord, California
Dr. Girgis' primary practice is Windsor Convalescent and Rehab Center of Concord, at 3806 Clayton Rd, Concord, CA 94521 in Contra Costa County. The practice phone is (925) 689-2266.
- Windsor Convalescent and Rehab Center of Concord3806 Clayton Rd, Concord, CA 94521 · Contra Costa CountyPhone(925) 689-2266
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Agathon A. Girgis is affiliated with 2 sites of care and 1 medical group
Dr. Girgis' primary practice is Windsor Convalescent and Rehab Center of Concord in Concord, California. Dr. Girgis is also affiliated with Walnut Creek Medical Center. The medical group on file is The Permanente Medical Group, Inc.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Agathon A. Girgis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Girgis practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Windsor Convalescent and Rehab Center of Concord | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Agathon A. Girgis is one of 3,186 hospitalists in California
Hospitalist is Dr. Girgis' primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Girgis is licensed in California.
Specialties and state licenses
- Hospitalist, CaliforniaPrimary
Hospitalists near Dr. Girgis
Counts of hospitalists 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. Agathon A. Girgis' patients have a median age of 80
Across all payers, Dmand AI patient panel data puts Dr. Girgis' median patient age at 80, with 57% women.
Dr. Girgis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 80
Patient panel by sex, all payers
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
Dr. Agathon A. Girgis wrote 3,440 Medicare Part D claims in 2024
In 2024, Dr. Girgis wrote 3,440 Medicare Part D claims for 227 patients. 78% of them were for generic drugs. CMS names the drug for 3,001 of them, across 77 drugs with 11 or more claims each, at $183,114 in total drug cost. In 2023, CMS named 2,306 claims across 69 drugs.
Dr. Girgis' Part D claims by kind of drug, 2024
- Generic2,682 claims78%
- Brand-name and other758 claims22%
Dr. Girgis' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Girgis' Part D claims, 2024
- Opioids2%52 of 3,440 claims
- Antibiotics3%109 of 3,440 claims
- Antipsychotics, patients 65 and over2%84 of 3,440 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,3062024: 3,00130%
Drugs named by CMS: 77 in 2024, 69 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Agathon A. Girgis has 3 publications on record
Dmand AI links 3 papers to Dr. Girgis, published from 2018 to 2020. Dr. Girgis' most frequent co-authors are Mopelola Adetola Adeyemo, MD, Charles Thomas Chaya, MD and Andrew Q. Giap, MD.
Dr. Girgis' papers by year, 2018 to 2020
Dr. Girgis' most frequent co-authors
- Mopelola Adetola Adeyemo, MD2 shared papers
- Charles Thomas Chaya, MD2 shared papers
- Andrew Q. Giap, MD2 shared papers
Recent publications by Dr. Girgis
See who Dr. Girgis researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Girgis works with, so you can find a warm path to the right hospitalists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Agathon A. Girgis received $49 in industry payments from 2017 to 2024
CMS Open Payments shows 2 general payments to Dr. Girgis from 2 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 100% of the total. Shionogi Inc paid the most, $32.
General payments to Dr. Girgis by program year, 2017 to 2024
Companies that paid Dr. Girgis the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Agathon A. Girgis'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Agathon A. Girgis
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. Agathon A. Girgis' NPI number?
Dr. Agathon A. Girgis' NPI number is 1568840635. It was assigned on May 11, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Agathon A. Girgis?
Dr. Agathon A. Girgis is a hospitalist in Concord, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Agathon A. Girgis practice?
Dr. Girgis practices at 3806 Clayton Rd, Concord, CA 94521. Dr. Girgis' primary practice is Windsor Convalescent and Rehab Center of Concord in Concord, California.
What is Dr. Agathon A. Girgis' office phone number?
The practice phone on file for Dr. Girgis is (925) 689-2266.
What is Dr. Agathon A. Girgis' medical license number?
Dr. Girgis holds California license 153179.
Which hospitals is Dr. Agathon A. Girgis affiliated with?
Dr. Girgis is affiliated with Walnut Creek Medical Center.
What medical group is Dr. Agathon A. Girgis part of?
Dr. Girgis is linked to The Permanente Medical Group, Inc.
What drugs does Dr. Agathon A. Girgis prescribe most?
In 2024 Medicare Part D data, Dr. Girgis' most prescribed drugs by claims were Atorvastatin Calcium, Furosemide and Levothyroxine Sodium.
Has Dr. Agathon A. Girgis received payments from drug or device companies?
CMS Open Payments shows $49 in general payments to Dr. Girgis from 2 companies from 2017 to 2024. The largest total came from Shionogi Inc.
How long has Dr. Agathon A. Girgis been practicing?
Dr. Girgis graduated from medical school in 2008, 18 years ago.
Does Dr. Agathon A. Girgis do research?
Dmand AI links 3 publications to Dr. Girgis, published from 2018 to 2020.
Who does Dr. Agathon A. Girgis publish with?
Dr. Girgis' most frequent co-authors are Mopelola Adetola Adeyemo, MD (2 shared papers), Charles Thomas Chaya, MD (2 shared papers) and Andrew Q. Giap, MD (2 shared papers).
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