Eric Tsongshien Tsay

  • Moreno Valley, CA
  • Pediatrician
NPI1275911364
Part D claims, 2024
39
Publications
6
MIPS score, 2024
89
Industry payments
$194
Affiliated sites
1
Practice address
26600 Cactus Avenue, Suite 300, Moreno Valley, CA 92555
Practice phone
Call (951) 988-9500
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

County of Riverside - Main Campus Community Health Center

FQHC - Main Site · Moreno Valley, California

See all 4 affiliations

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Eric Tsongshien Tsay is a pediatrician in Moreno Valley, California

Eric Tsay practices at County of Riverside - Main Campus Community Health Center in Moreno Valley, California.

Eric Tsay's NPI, 1275911364, was assigned on May 11, 2015. Eric Tsay graduated from Loma Linda University School Of Medicine in 2015. Eric Tsay's California license number on file is A145318.

NPI and contact details
NPI enumeration date
May 11, 2015
NPI status
Active
Practice phone
(951) 988-9500
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
37
Medical school graduation
2015

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Eric Tsongshien Tsay practices at County of Riverside - Main Campus Community Health Center in Moreno Valley, California

Eric Tsay's primary practice is County of Riverside - Main Campus Community Health Center, at 26600 Cactus Avenue, Suite 300, Moreno Valley, CA 92555 in Riverside County. The practice phone is (951) 988-9500.

  • County of Riverside - Main Campus Community Health Center
    26600 Cactus Avenue, Suite 300, Moreno Valley, CA 92555 · Riverside CountyPhone(951) 988-9500

Source: Dmand AI Affiliation Data

Eric Tsongshien Tsay is affiliated with 1 site of care and 3 medical groups

Eric Tsay's primary practice is County of Riverside - Main Campus Community Health Center in Moreno Valley, California. The medical group on file is Loma Linda University Faculty Medical Group (LLUFMG). Dmand AI also links Eric Tsay to 2 more medical groups, each named with a free account. Eric Tsay's employer is on file too: a community health center (fqhc).

See all 4 affiliations for Eric Tsay

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Eric Tsongshien Tsay's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Eric Tsay practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
County of Riverside - Main Campus Community Health CenterAvailable with a free account
+2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Eric Tsongshien Tsay is one of 8,236 pediatricians in California

Pediatrics is Eric Tsay's primary specialty in the NPI Registry, under taxonomy code 208000000X. Eric Tsay is board certified in pediatric endocrinology by the American Board of Pediatrics. Eric Tsay has a license on file in California.

Specialties and state licenses

  • Pediatrics, CaliforniaPrimaryLicense A145318 · 2016 to 2025 · taxonomy 208000000X

Pediatricians near Eric Tsay

Counts of pediatricians 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

Eric Tsongshien Tsay's patients have a median age of 14

Across all payers, Dmand AI patient panel data puts Eric Tsay's median patient age at 14, with 57% women.

Eric Tsay's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 14

Patient panel by sex, all payers

  • Women57%
  • Men42%

Source: Dmand AI Patient Panel Data

Eric Tsongshien Tsay wrote 39 Medicare Part D claims in 2024

In 2024, Eric Tsay wrote 39 Medicare Part D claims. CMS names the drug for 15 of them, across 1 drug with 11 or more claims each, at $1,675 in total drug cost.

Part D claims, 202439
Drugs named by CMS1
Total drug cost$1,675

Eric Tsay'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.

See all prescribing by Eric Tsay

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

Eric Tsongshien Tsay scored 89 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Eric Tsay for performance year 2024, reported as part of a group.

Eric Tsay's MIPS scores, performance year 2024

  • 89of 100Final score
  • 72.1of 100Quality
  • 80of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 77of 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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Eric Tsongshien Tsay has 6 publications on record

Dmand AI links 6 papers to Eric Tsay, published from 2013 to 2025. The most frequent topics are Cell Differentiation, Gene Expression Profiling and Signal Transduction. Eric Tsay's most frequent co-authors are Nahidh W. Hasaniya, MD, PhD, Christopher Ferber and Michael Everett Gottschalk, MD, PhD.

Papers6
Years published2013 to 2025

Eric Tsay's papers by year, 2013 to 2025

Topics Eric Tsay writes about most

  • Cell Differentiation
  • Gene Expression Profiling
  • Signal Transduction

Eric Tsay's most frequent co-authors

Recent publications by Eric Tsay

See all 6 publications and co-authors

See who Eric Tsay researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Eric Tsay works with, so you can find a warm path to the right pediatricians.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Eric Tsongshien Tsay received $194 in industry payments from 2018 to 2025

CMS Open Payments shows 7 general payments to Eric Tsay from 6 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Shire North American Group Inc paid the most, $71.

General payments to Eric Tsay by program year, 2018 to 2025

Companies that paid Eric Tsay the most, 2018 to 2025

Share is of all general payments to this clinician.

See all payments to Eric Tsay

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Eric Tsongshien Tsay graduated from Loma Linda University School Of Medicine

Eric Tsay graduated from Loma Linda University School Of Medicine in 2015.

  1. Medical schoolLoma Linda University School Of Medicine
  2. Board certified in pediatric endocrinologyAmerican Board of Pediatrics
  3. Board certified in pediatricsAmerican Board of Pediatrics

Source: Dmand AI Professional Profile Data

Eric Tsongshien Tsay accepts plans from 10 insurance carriers

Eric Tsay is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • United Healthcare
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Molina
  • Regence Health Plans
  • +2 more carriersWith a free account

Plan types Eric Tsay accepts, by number of carriers

  1. PPO7
  2. HMO6
  3. Medicare6
  4. POS4
  5. EPO2
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Eric Tsongshien Tsay's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare 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 percentilesClinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Eric Tsongshien Tsay

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Eric Tsongshien Tsay's NPI number?

Eric Tsongshien Tsay's NPI number is 1275911364. It was assigned on May 11, 2015, and it is active in the NPI Registry.

What does Eric Tsongshien Tsay specialize in?

Eric Tsongshien Tsay is a pediatrician in Moreno Valley, California. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).

Where does Eric Tsongshien Tsay practice?

Eric Tsay practices at 26600 Cactus Avenue, Suite 300, Moreno Valley, CA 92555. Eric Tsay's primary practice is County of Riverside - Main Campus Community Health Center in Moreno Valley, California. Dmand AI also links Eric Tsay to 2 medical groups.

What is Eric Tsongshien Tsay's office phone number?

The practice phone on file for Eric Tsay is (951) 988-9500.

What is Eric Tsongshien Tsay's medical license number?

Eric Tsay's California license number on file is A145318.

What medical group is Eric Tsongshien Tsay part of?

Eric Tsay is linked to Loma Linda University Faculty Medical Group (LLUFMG). Dmand AI links Eric Tsay to 2 more medical groups.

What is Eric Tsongshien Tsay's MIPS score?

Eric Tsay's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.

Is Eric Tsongshien Tsay board certified?

Yes. Eric Tsay is board certified in pediatric endocrinology by the American Board of Pediatrics.

Where did Eric Tsongshien Tsay go to medical school?

Eric Tsay graduated from Loma Linda University School Of Medicine in 2015.

What drugs does Eric Tsongshien Tsay prescribe most?

In 2024 Medicare Part D data, Eric Tsay's most prescribed drugs by claims were Nano 2nd Gen Pen Needle.

Show 5 more questionsShow fewer questions

Has Eric Tsongshien Tsay received payments from drug or device companies?

CMS Open Payments shows $194 in general payments to Eric Tsay from 6 companies from 2018 to 2025. The largest total came from Shire North American Group Inc.

How long has Eric Tsongshien Tsay been practicing?

Eric Tsay graduated from medical school in 2015, 11 years ago.

Does Eric Tsongshien Tsay do research?

Dmand AI links 6 publications to Eric Tsay, published from 2013 to 2025.

Who does Eric Tsongshien Tsay publish with?

Eric Tsay's most frequent co-authors are Nahidh W. Hasaniya, MD, PhD (2 shared papers), Christopher Ferber (1 shared paper) and Michael Everett Gottschalk, MD, PhD (1 shared paper).

What insurance does Eric Tsongshien Tsay accept?

Eric Tsay is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.

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