Eric Tsay
Pediatric Endocrinology Physician · Loma Linda, CA
Eric Tsay is a pediatric endocrinology physician with a practice address in Loma Linda, California, and NPI 1275911364, issued on May 11, 2015. Check the license (California A145318, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Eric Tsay
- Primary taxonomy
- Pediatric Endocrinology Physician 2080P0205X
- License number
- A145318 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11175 Campus Street, CP-A1120, Loma Linda, CA 92350
- Phone
- (909) 558-4773
- Enumerated
- May 11, 2015
- Record last updated
- Nov 26, 2025
- Entity
- Type 1 · individual
8 nearest pediatric endocrinology physician records → All 207 in California → Look up another NPI →
Verify Eric Tsay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A145318Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average pediatric endocrinology physician in 2024
39 Medicare Part D claims, against an average of 105 among the 386 providers of this specialty who prescribed in Part D.
Most prescribed
- Nano 2nd Gen Pen Needle15 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $32.21
2 payments; by number, the most common kind was food and beverage; the largest payer was Tolmar, Inc. The 931 providers of this specialty with any payment received $4,382.94 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Eric Tsay among 207 pediatric endocrinology physician records in California
Eric Tsay is one of 207 pediatric endocrinology physician records with a practice address in California. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 78% of them.
- NPI issued2015 · 78% of these records are older, 17% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileNo · 23% of these records are
- Record last updated2025 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0205X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Endocrinology Physician providers in California
There are 207 pediatric endocrinology physician records in California.
All 207 in California → Every provider in Loma Linda → Pediatric Endocrinology Physician nationwide →
The 8 pediatric endocrinology physician records with the nearest ZIP codes
- Shrinkhala Srivastava, M.D.Loma Linda, CA 923501295149771
- Priyanka Bakhtiani, MDLoma Linda, CA 923541447530910
- Julianne GibbonsLoma Linda, CA 923541417453622
- Anu VishwanathLoma Linda, CA 923541982816237
- Ramin Mogadas, M.D.Fontana, CA 923351124041710
- Donald Childs, MDRiverside, CA 925061780668269
- Shilpa Gupta, M.D.Riverside, CA 925061659588754
- Stacy Rustico, M.D.San Diego, CA 921341942461512
Common questions
What is Eric Tsay's NPI number?
Eric Tsay's National Provider Identifier (NPI) is 1275911364, issued on May 11, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Eric Tsay located?
The NPPES record lists a practice address at 11175 Campus Street, CP-A1120, Loma Linda, CA, 92350. Phone: (909) 558-4773. Providers update this record themselves, so call before visiting.
How can I verify Eric Tsay's license?
NPPES lists California license number A145318, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Eric Tsay prescribe under Medicare Part D?
In 2024, Eric Tsay had 39 Medicare Part D claims; the average among pediatric endocrinology physician prescribers was 105. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.