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Dr. Joseph H. Ruan, MD
NPI1043498876PAC ID5597936419
- Part D claims, 2024
- 89
- Publications
- 4
- Hospital affiliations
- 1
- Industry payments
- $1,138
- Medical group
- 1
- Practice address
- 9965 Sierra Ave, Fontana, CA 92335
- Practice phone
- Call (909) 427-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Permanente - Fontana Medical Center
Fontana, California
Find Dr. Ruan'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. Joseph H. Ruan is a general surgeon in Fontana, California
Dr. Ruan practices at Kaiser Permanente - Fontana Medical Center in Fontana, California.
Dr. Ruan's NPI, 1043498876, was assigned on February 4, 2008. Dr. Ruan graduated from Drexel University College Of Medicine in 2004. Dr. Ruan holds California license A93995.
NPI and contact details
- NPI
- 1043498876NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597936419
- NPI enumeration date
- February 4, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 427-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joseph H. Ruan practices at Kaiser Permanente - Fontana Medical Center in Fontana, California
Dr. Ruan's primary practice is Kaiser Permanente - Fontana Medical Center, at 9965 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 427-5000.
- Kaiser Permanente - Fontana Medical Center9965 Sierra Ave, Fontana, CA 92335 · San Bernardino CountyPhone(909) 427-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Joseph H. Ruan is affiliated with 2 sites of care and 1 medical group
Dr. Ruan's primary practice is Kaiser Permanente - Fontana Medical Center in Fontana, California. Dr. Ruan is also affiliated with Fontana Medical Center. The medical group on file is Southern California Permanente Medical Group.
Kaiser Permanente - Fontana Medical CenterPrimary
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. Joseph H. Ruan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ruan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente - Fontana Medical Center | 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. Joseph H. Ruan is one of 2,926 general surgeons in California
Surgery is Dr. Ruan's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Ruan is board certified in colon & rectal surgery by the American Board of Colon and Rectal Surgery. Dr. Ruan is licensed in California.
Specialties and state licenses
- Surgery, CaliforniaPrimary
General surgeons near Dr. Ruan
Counts of general surgeons 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. Joseph H. Ruan's patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Ruan's median patient age at 62, with 60% women.
Dr. Ruan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women60%
- Men40%
Source: Dmand AI Patient Panel Data
Dr. Joseph H. Ruan wrote 89 Medicare Part D claims in 2024
In 2024, Dr. Ruan wrote 89 Medicare Part D claims for 33 patients. 92% of them were for generic drugs. CMS names the drug for 34 of them, across 2 drugs with 11 or more claims each, at $617 in total drug cost. In 2023, CMS named 46 claims across 3 drugs.
Part D claims, 202489
Drugs named by CMS2
Total drug cost$617
Part D patients33
Dr. Ruan's Part D claims by kind of drug, 2024
- Generic82 claims92%
- Brand-name and other7 claims8%
Dr. Ruan's 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. Ruan's Part D claims, 2024
- Opioids43%38 of 89 claims
- Antibiotics21%19 of 89 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: 462024: 3426%
Drugs named by CMS: 2 in 2024, 3 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
How Dr. Joseph H. Ruan takes part in Medicare
Dr. Ruan 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. Joseph H. Ruan has 4 publications on record
Dmand AI links 4 papers to Dr. Ruan, published from 2009 to 2020. The most frequent topics are California, Length of Stay and Postoperative Complications. Dr. Ruan has published most often in Am Surg. Dr. Ruan's most frequent co-authors are Robert M. Yuhan, MD, Mohammed Hassan Al-Temimi, MD and Joseph C. Carmichael, MD.
Papers4
Years published2009 to 2020
Topics Dr. Ruan writes about most
- California
- Length of Stay
- Postoperative Complications
Dr. Ruan's most frequent co-authors
- Robert M. Yuhan, MD2 shared papers
- Mohammed Hassan Al-Temimi, MD1 shared paper
- Joseph C. Carmichael, MD1 shared paper
Recent publications by Dr. Ruan
Anastomotic LeakCaliforniaColorectal Surgery
AppendicitisCaliforniaColectomy
See who Dr. Ruan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ruan works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Joseph H. Ruan received $1,138 in industry payments from 2016 to 2021
CMS Open Payments shows 13 general payments to Dr. Ruan from 6 drug and device companies from 2016 to 2021. Travel and lodging make up the largest share, 57% of the total. Intuitive Surgical, Inc. paid the most, $782.
General payments to Dr. Ruan by program year, 2016 to 2021
General payments to Dr. Ruan by kind, 2016 to 2021
$1.1Kin total
- Travel and lodging$65257%
- Food and beverage$48643%
Companies that paid Dr. Ruan the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Joseph H. Ruan has 1 award and honors on record
Dmand AI lists 1 award for Dr. Ruan.
Awards and honors for Dr. Ruan
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Joseph H. Ruan graduated from Drexel University College Of Medicine
Dr. Ruan graduated from Drexel University College Of Medicine in 2004. Dr. Ruan is a member of ACS.
- Medical school
- Board certified in colon & rectal surgery
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Joseph H. Ruan accepts plans from 2 insurance carriers
Dr. Ruan is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Ruan accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Joseph H. Ruan'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Joseph H. Ruan
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. Joseph H. Ruan's NPI number?
Dr. Joseph H. Ruan's NPI number is 1043498876. It was assigned on February 4, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Joseph H. Ruan?
Dr. Joseph H. Ruan is a general surgeon in Fontana, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Joseph H. Ruan practice?
Dr. Ruan practices at 9965 Sierra Ave, Fontana, CA 92335. Dr. Ruan's primary practice is Kaiser Permanente - Fontana Medical Center in Fontana, California.
What is Dr. Joseph H. Ruan's office phone number?
The practice phone on file for Dr. Ruan is (909) 427-5000.
What is Dr. Joseph H. Ruan's medical license number?
Dr. Ruan holds California license A93995.
Which hospitals is Dr. Joseph H. Ruan affiliated with?
Dr. Ruan is affiliated with Fontana Medical Center.
What medical group is Dr. Joseph H. Ruan part of?
Dr. Ruan is linked to Southern California Permanente Medical Group.
Does Dr. Joseph H. Ruan accept Medicare?
Yes. CMS lists Dr. Ruan as accepting Medicare assignment.
Is Dr. Joseph H. Ruan board certified?
Yes. Dr. Ruan is board certified in colon & rectal surgery by the American Board of Colon and Rectal Surgery.
Where did Dr. Joseph H. Ruan go to medical school?
Dr. Ruan graduated from Drexel University College Of Medicine in 2004.
Show 6 more questionsShow fewer questions
What drugs does Dr. Joseph H. Ruan prescribe most?
In 2024 Medicare Part D data, Dr. Ruan's most prescribed drugs by claims were Tramadol HCl and Oxycodone-Acetaminophen.
Has Dr. Joseph H. Ruan received payments from drug or device companies?
CMS Open Payments shows $1,138 in general payments to Dr. Ruan from 6 companies from 2016 to 2021. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Joseph H. Ruan been practicing?
Dr. Ruan graduated from medical school in 2004, 22 years ago.
Does Dr. Joseph H. Ruan do research?
Dmand AI links 4 publications to Dr. Ruan, published from 2009 to 2020.
Who does Dr. Joseph H. Ruan publish with?
Dr. Ruan's most frequent co-authors are Robert M. Yuhan, MD (2 shared papers), Mohammed Hassan Al-Temimi, MD (1 shared paper) and Joseph C. Carmichael, MD (1 shared paper).
What insurance does Dr. Joseph H. Ruan accept?
Dr. Ruan is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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