Analgesics, OpioidCrohn DiseaseElective Surgical Procedures
Dr. Ryan Chen, MD
NPI1831516095PAC ID3173833324
- Medicare services, 2024
- 307
- Medicare patients, 2026
- 204
- Part D claims, 2026
- 145
- Publications
- 1
- Hospital affiliations
- 2
- Practice address
- 1625 Creekside Dr, Folsom, CA 95630
- Practice phone
- Call (916) 365-2987
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sierra Medical Partnership
Folsom, California
Find Dr. Chen'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. Ryan Chen is a general surgeon in Folsom, California
Dr. Chen practices at Sierra Medical Partnership in Folsom, California.
Dr. Chen's NPI, 1831516095, was assigned on March 26, 2014. Dr. Chen graduated from Saint Louis University School Of Medicine in 2014. Dr. Chen holds California license A158963.
NPI and contact details
- NPI
- 1831516095NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173833324
- NPI enumeration date
- March 26, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (916) 365-2987
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ryan Chen practices at Sierra Medical Partnership in Folsom, California
Dr. Chen's primary practice is Sierra Medical Partnership, at 1625 Creekside Dr, Folsom, CA 95630 in Sacramento County. The practice phone is (916) 365-2987.
- Sierra Medical Partnership1625 Creekside Dr, Folsom, CA 95630 · Sacramento CountyPhone(916) 365-2987
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ryan Chen is affiliated with 5 sites of care and 3 medical groups
Dr. Chen's primary practice is Sierra Medical Partnership in Folsom, California. Dr. Chen is also affiliated with Mercy Hospital of Folsom. The medical group on file is SGMF Radiology. Dmand AI also links Dr. Chen to 1 more hospital, 2 group practices and clinics and 2 medical groups, each named with a free account.
Sierra Medical PartnershipPrimary
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. Ryan Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sierra Medical Partnership | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ryan Chen is one of 2,926 general surgeons in California
Surgery is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Chen is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Chen's licenses on file in 2 states: California and Kentucky.
Specialties and state licenses
- Surgery, CaliforniaPrimary
- Kentucky license
Clinical focus
Dmand AI lists abdominal adhesion surgery, abdominal hernia repair surgery, acute gallbladder or bile duct inflammation, appendectomy, colonoscopy, colon removal, esophagus, stomach, or upper small intestine surgery and gallbladder removal among the conditions Dr. Chen treats.
General surgeons near Dr. Chen
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
2,926general surgeons in California
7general surgeons in Folsom
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ryan Chen billed Medicare for 307 services in 2024
CMS data shows 307 Medicare services from Dr. Chen across 10 procedure codes in 2024, for 204 Medicare patients. Medicare paid $39,063 for them.
Medicare services, 2024307
Medicare patients204
Paid by Medicare$39,063
Procedure codes10
Dr. Chen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3282024: 25423%
- Surgery
- 2023: 242024: 4275%
- Imaging
- 2023: 272024: 1159%
Where Dr. Chen's Medicare services took place, 2024
- In an office14949%
- In a facility15851%
Dr. Chen compared with the California median for general surgeons, 2024
- Dr. Chen
- California median
- Medicare services
- 307vs 16685% above
- Medicare patients
- 204vs 12169% above
- Part D claims
- 113vs 343.3 times
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Chen's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Chen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chen and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ryan Chen treated 204 Medicare patients in 2026, average age 74
CMS counts 204 Medicare patients who saw Dr. Chen in 2026. The largest group is 65 to 74, with 90 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 21% are also on Medicaid. Their average risk score is 1.42, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 56, with 45% women.
Medicare patients, 2026204
Average age74
Average risk score1.42
Also on Medicaid21%
Dr. Chen's Medicare patients by age, 2026
Dr. Chen's Medicare patients by sex, 2026
- Women10551%
- Men9949%
Chronic conditions among Dr. Chen's Medicare patients, 2026
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Cancer28%
- Diabetes28%
- Ischemic heart disease25%
- Anxiety24%
- Chronic kidney disease24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women45%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Dr. Ryan Chen wrote 145 Medicare Part D claims in 2026
In 2026, Dr. Chen wrote 145 Medicare Part D claims for 74 patients. 99% of them were for generic drugs. CMS names the drug for 113 of them, across 2 drugs with 11 or more claims each, at $608 in total drug cost. In 2023, CMS named 102 claims across 3 drugs.
Part D claims, 2026145
Drugs named by CMS2
Total drug cost$608
Part D patients74
Dr. Chen's Part D claims by kind of drug, 2026
- Generic144 claims99%
- Brand-name and other1 claims1%
Dr. Chen'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. Chen's Part D claims, 2026
- Opioids47%68 of 145 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: 1022024: 11311%
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), 2026 data
Dr. Ryan Chen ranks in the 81st percentile for hernia repair (minimally invasive) in Medicare
Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 15 procedures of hernia repair (minimally invasive) by Dr. Chen, more than 81% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Chen ranks in Medicare procedure volume
- Hernia repair (minimally invasive)
- 81st percentile15 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Spinal fusion: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Ryan Chen has 1 publication on record
Dmand AI links 1 paper to Dr. Chen. Dr. Chen's most frequent co-authors are Russell Ware Farmer, MD, Susan Galandiuk, MD and Jeffrey R. Jorden, MD.
Papers1
Dr. Chen's most frequent co-authors
- Russell Ware Farmer, MD1 shared paper
- Susan Galandiuk, MD1 shared paper
- Jeffrey R. Jorden, MD1 shared paper
Recent publications by Dr. Chen
See who Dr. Chen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chen 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. Ryan Chen received $27,129 in industry payments from 2017 to 2025
CMS Open Payments shows 150 general payments to Dr. Chen from 26 drug and device companies from 2017 to 2025. Education make up the largest share, 44% of the total. Intuitive Surgical, Inc. paid the most, $19,975.
General payments to Dr. Chen by program year, 2017 to 2025
General payments to Dr. Chen by kind, 2017 to 2025
$27.1Kin total
- Education$12,05844%
- Travel and lodging$8,07930%
- Food and beverage$3,99215%
- Speaker and faculty fees$3,00011%
Companies that paid Dr. Chen the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ryan Chen graduated from Saint Louis University School Of Medicine
Dr. Chen graduated from Saint Louis University School Of Medicine in 2014.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Ryan Chen accepts plans from 15 insurance carriers
Dr. Chen is in network with 15 carriers, including Aetna, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- Regence Health Plans
- Alliant Health Plans
- +7 more carriersWith a free account
Plan types Dr. Chen accepts, by number of carriers
- PPO9
- Medicare7
- HMO6
- EPO4
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Ryan Chen'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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)Doctors and Clinicians Utilization Data (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) |
| 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. Ryan Chen
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. Ryan Chen's NPI number?
Dr. Ryan Chen's NPI number is 1831516095. It was assigned on March 26, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Ryan Chen?
Dr. Ryan Chen is a general surgeon in Folsom, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Ryan Chen practice?
Dr. Chen practices at 1625 Creekside Dr, Folsom, CA 95630. Dr. Chen's primary practice is Sierra Medical Partnership in Folsom, California. Dmand AI also links Dr. Chen to 1 hospital, 2 group practices and clinics and 2 medical groups, and a free account names each one.
What is Dr. Ryan Chen's office phone number?
The practice phone on file for Dr. Chen is (916) 365-2987. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Ryan Chen's email address?
Dmand AI checks professional and personal email addresses for Dr. Chen through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Ryan Chen's medical license number?
Dr. Chen holds California license A158963, one of the licenses on file in 2 states.
Which states has Dr. Ryan Chen been licensed in?
Dmand AI has state licenses on file for Dr. Chen in California (2018 to 2026) and Kentucky (2015 to 2019).
Which hospitals is Dr. Ryan Chen affiliated with?
Dr. Chen is affiliated with Mercy Hospital of Folsom. Dmand AI links Dr. Chen to 1 more hospital, named with a free account.
What medical group is Dr. Ryan Chen part of?
Dr. Chen is linked to SGMF Radiology. Dmand AI links Dr. Chen to 2 more medical groups, named with a free account.
Who does Dr. Ryan Chen practice with?
Dmand AI links 2,567 HCPs to Dr. Chen's primary medical group, 40 of them general surgeons. A free account lists them, with verified contacts.
Show 12 more questionsShow fewer questions
Does Dr. Ryan Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 307 services in 2024, and Dr. Chen accepts Medicare assignment.
How many Medicare patients does Dr. Ryan Chen see?
CMS counts 204 Medicare patients who saw Dr. Chen in 2026, with an average age of 74.
Is Dr. Ryan Chen board certified?
Yes. Dr. Chen is board certified in surgery by the American Board of Surgery.
What services does Dr. Ryan Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were office visit, new patient (99203), hospital inpatient care (99232) and hospital inpatient care (99223).
Where did Dr. Ryan Chen go to medical school?
Dr. Chen graduated from Saint Louis University School Of Medicine in 2014.
What drugs does Dr. Ryan Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Hydrocodone-Acetaminophen and Ibuprofen.
Has Dr. Ryan Chen received payments from drug or device companies?
CMS Open Payments shows $27,129 in general payments to Dr. Chen from 26 companies from 2017 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Ryan Chen been practicing?
Dr. Chen graduated from medical school in 2014, 12 years ago.
Does Dr. Ryan Chen do research?
Dmand AI links 1 publication to Dr. Chen.
Who does Dr. Ryan Chen publish with?
Dr. Chen's most frequent co-authors are Russell Ware Farmer, MD (1 shared paper), Susan Galandiuk, MD (1 shared paper) and Jeffrey R. Jorden, MD (1 shared paper).
What EHR does Dr. Ryan Chen's practice use?
Dmand AI tracks the EHR system at Sierra Medical Partnership and at 4 more sites and 2 medical groups. The vendor and product are available with a free Dmand AI account.
What insurance does Dr. Ryan Chen accept?
Dr. Chen is in network with 15 carriers, including Aetna, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit. The full carrier list is available with a free Dmand AI account.
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