Eric Changchien, MD
Colon & Rectal Surgery Physician · Riverside, CA
Eric Changchien, MD is a colon & rectal surgery physician with a practice address in Riverside, California, and NPI 1710137401, issued on Sep 30, 2008. Check the license (California 108490, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Eric Changchien
- Credential
- MD
- Primary taxonomy
- Colon & Rectal Surgery Physician 208C00000X
- License numbers
- 108490 CA
8505128-1205 UT
Self-reported in NPPES; status is on the state search - Practice location
- 3660 Park Sierra Dr, Riverside, CA 92505
- Phone
- (951) 278-8870
- Enumerated
- Sep 30, 2008
- Entity
- Type 1 · individual
Also registered at 3660 Park Sierra Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rizwan Badar, M.D.Nephrology Physician1073761243
- Ly Duong, NPGerontology Nurse Practitioner1497261614
- Monica Falcon, PA-CSurgical Physician Assistant1588750152
- Arthur Galoustian, MDNephrology Physician1487685426
- Rahul Gohil, MDSurgery Physician1679754873
- Vanessa Ho, MDFamily Medicine Physician1679512776
Verify Eric Changchien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 108490Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
21% fewer Medicare Part D claims than the average colon & rectal surgery physician in 2024
165 Medicare Part D claims for 70 beneficiaries, against an average of 210 among the 1,179 providers of this specialty who prescribed in Part D. 59 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen30 claims
- Tramadol Hcl22 claims
- Metronidazole13 claims
- Nitro-Bid12 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: $292.45
3 payments, mostly food and beverage; the largest payer was Intuitive Surgical, Inc.. The 1,002 providers of this specialty with any payment received $3,284.85 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.
One hospital or facility affiliation
- Southern California Permanente Medical GroupIrvine, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Colon & Rectal Surgery Physician providers in California
There are 142 colon & rectal surgery physician records in California.
Other colon & rectal surgery physician records in California
- Kenneth Aaron, M.D.Newport Beach, CA1689809162
- Michael Abel, M.D.San Francisco, CA1447253380
- Piyush Aggarwal, MDWalnut Creek, CA1700070273
- Allison Aka, MDLoma Linda, CA1891130100
- Ahmed Alkoraishi, MDHayward, CA1609954478
- Robert Allen, MDSanta Cruz, CA1871586610
- Shohrat Annaberdyev, M.D.Roseville, CA1386888147
- Elizabeth Arcila, M.D.Irvine, CA1093056780
- Glenn Ault, M.D.Los Angeles, CA1295749802
- Anil Bahadursingh, MDAnaheim, CA1750485363
Common questions
What is Eric Changchien, MD's NPI number?
Eric Changchien, MD's National Provider Identifier (NPI) is 1710137401, issued on Sep 30, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Eric Changchien, MD located?
The NPPES record lists a practice address at 3660 Park Sierra Dr, Riverside, CA, 92505. Phone: (951) 278-8870. Providers update this record themselves, so call before visiting.
How can I verify Eric Changchien, MD's license?
NPPES lists California license number 108490, 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 Changchien, MD prescribe under Medicare Part D?
In 2024, Eric Changchien, MD had 165 Medicare Part D claims for 70 beneficiaries; the average among colon & rectal surgery physician prescribers was 210. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.