Dr. Jason K. An, MD
- Medicare services, 2024
- 129
- Medicare patients, 2024
- 89
- Part D claims, 2024
- 33
- Publications
- 3
- MIPS score, 2024
- 97
- Practice address
- 4445 Magnolia Avenue, Riverside, CA 92501
- Practice phone
- Call (951) 788-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. An'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. Jason K. An is an emergency medicine physician in Riverside, California
Dr. An practices at Riverside Community Hospital in Riverside, California, part of HCA Healthcare.
Dr. An's NPI, 1851533905, was assigned on April 2, 2009. Dr. An graduated from Indiana University School Of Medicine in 2009. Dr. An holds California license A113121.
- NPI
- 1851533905NPI Registry (opens in a new tab)
- NPI enumeration date
- April 2, 2009
- NPI status
- Active
- Practice phone
- (951) 788-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Jason K. An practices at Riverside Community Hospital in Riverside, California
Dr. An's primary practice is Riverside Community Hospital, at 4445 Magnolia Avenue, Riverside, CA 92501 in Riverside County. The practice phone is (951) 788-3000.
- Riverside Community Hospital4445 Magnolia Avenue, Riverside, CA 92501 · Riverside CountyPhone(951) 788-3000
Source: Dmand AI Affiliation Data
Dr. Jason K. An is affiliated with 1 site of care and 4 medical groups
Dr. An's primary practice is Riverside Community Hospital in Riverside, California, part of HCA Healthcare. The medical group on file is Vituity. Dmand AI also links Dr. An to 3 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jason K. An's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. An practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Riverside Community Hospital | Available with a free account |
| +3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jason K. An is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. An's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. An is board certified in emergency medicine by the American Board of Emergency Medicine. Dr. An is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. An
Counts of emergency 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. Jason K. An billed Medicare for 129 services in 2024
CMS data shows 129 Medicare services from Dr. An across 3 procedure codes in 2024, for 89 Medicare patients. Medicare paid $11,522 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. An's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 982024: 8216%
- Tests and treatments
- 2023: 562024: 4716%
Dr. An compared with the California median for emergency medicine physicians, 2024
- Dr. An
- California median
- Medicare services
- 129vs 26551% below
- Medicare patients
- 89vs 24363% below
- Part D claims
- 42vs 6232% below
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. An'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. An?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. An and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jason K. An treated 89 Medicare patients in 2024, average age 71
CMS counts 89 Medicare patients who saw Dr. An in 2024. The largest group is 65 to 74, with 32 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 64% are also on Medicaid. Their average risk score is 2.70, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. An's median patient age at 43, with 59% women.
Dr. An's Medicare patients by age, 2024
Dr. An's Medicare patients by sex, 2024
- Women5157%
- Men3843%
Chronic conditions among Dr. An's Medicare patients, 2024
- High blood pressure75%
- High cholesterol72%
- Diabetes55%
- Arthritis51%
- Mood disorders49%
- Chronic kidney disease45%
- Depression45%
- Anxiety38%
Share of Medicare patients with each condition. A patient can have several.
Dr. An's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women59%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jason K. An wrote 33 Medicare Part D claims in 2024
In 2024, Dr. An wrote 33 Medicare Part D claims for 28 patients. 88% of them were for generic drugs. They cover 3 drugs, with $274 in total drug cost. In 2018, CMS named 56 claims across 3 drugs.
Dr. An's Part D claims by kind of drug, 2024
- Generic29 claims88%
- Brand-name and other4 claims12%
Dr. An's most prescribed drugs by claims, 2019
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, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 562019: 4225%
Drugs named by CMS: 3 in 2019, 3 in 2018.
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
Dr. Jason K. An scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. An for performance year 2024, reported as part of a group.
Dr. An's MIPS scores, performance year 2024
- 97of 100Final score
- 90of 100Quality
- 40of 100Improvement Activities
- 78of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Jason K. An has 3 publications on record
Dmand AI links 3 papers to Dr. An in 2022. The most frequent topics are Internship and Residency. Dr. An has published most often in West J Emerg Med. Dr. An's most frequent co-authors are Deepinder S. Bal, MD, Matthias Barden, MD and Hanna Barrett, DO.
Topics Dr. An writes about most
- Internship and Residency
Dr. An's most frequent co-authors
Recent publications by Dr. An
West J Emerg Med
West J Emerg Med
See who Dr. An researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. An works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jason K. An received $27 in industry payments in 2023
CMS Open Payments shows 1 general payment to Dr. An from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. Regeneron Pharmaceuticals, Inc. paid the most, $27.
Companies that paid Dr. An the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jason K. An graduated from Indiana University School Of Medicine
Dr. An graduated from Indiana University School Of Medicine in 2009.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Jason K. An accepts plans from 6 insurance carriers
Dr. An is in network with 6 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- United Healthcare
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- Elevance
- HCSC
- Molina
Plan types Dr. An accepts, by number of carriers
- PPO3
- Medicare2
- POS2
- EPO1
- HMO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Jason K. An'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 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 | Clinician Public Reporting: Overall MIPS Performance (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. Jason K. An
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. Jason K. An's NPI number?
Dr. Jason K. An's NPI number is 1851533905. It was assigned on April 2, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Jason K. An?
Dr. Jason K. An is an emergency medicine physician in Riverside, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Jason K. An practice?
Dr. An practices at 4445 Magnolia Avenue, Riverside, CA 92501. Dr. An's primary practice is Riverside Community Hospital in Riverside, California, part of HCA Healthcare. Dmand AI also links Dr. An to 3 medical groups.
What is Dr. Jason K. An's office phone number?
The practice phone on file for Dr. An is (951) 788-3000.
What is Dr. Jason K. An's medical license number?
Dr. An holds California license A113121.
Which hospitals is Dr. Jason K. An affiliated with?
Dr. An practices at Riverside Community Hospital in Riverside, California.
What medical group is Dr. Jason K. An part of?
Dr. An is linked to Vituity. Dmand AI links Dr. An to 3 more medical groups.
Does Dr. Jason K. An accept Medicare?
Yes. CMS data shows Dr. An billed Medicare for 129 services in 2024.
What is Dr. Jason K. An's MIPS score?
Dr. An's MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.
How many Medicare patients does Dr. Jason K. An see?
CMS counts 89 Medicare patients who saw Dr. An in 2024, with an average age of 71.
Show 9 more questionsShow fewer questions
Is Dr. Jason K. An board certified?
Yes. Dr. An is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Jason K. An bill to Medicare?
In 2024, Dr. An's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
Where did Dr. Jason K. An go to medical school?
Dr. An graduated from Indiana University School Of Medicine in 2009.
What drugs does Dr. Jason K. An prescribe most?
In 2019 Medicare Part D data, Dr. An's most prescribed drugs by claims were Cephalexin, Azithromycin and Hydrocodone-Acetaminophen.
Has Dr. Jason K. An received payments from drug or device companies?
CMS Open Payments shows $27 in general payments to Dr. An from 1 company from 2023 to 2023. The largest total came from Regeneron Pharmaceuticals, Inc.
How long has Dr. Jason K. An been practicing?
Dr. An graduated from medical school in 2009, 17 years ago.
Does Dr. Jason K. An do research?
Dmand AI links 3 publications to Dr. An.
Who does Dr. Jason K. An publish with?
Dr. An's most frequent co-authors are Deepinder S. Bal, MD (1 shared paper), Matthias Barden, MD (1 shared paper) and Hanna Barrett, DO (1 shared paper).
What insurance does Dr. Jason K. An accept?
Dr. An is in network with 6 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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