Eric Ryan Chu, D.D.S.
Periodontics · Mountain View, CA
Eric Ryan Chu, D.D.S. is a periodontics with a practice address in Mountain View, California, and NPI 1184846891, issued on May 3, 2007. Check the license (California 45361, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Eric Ryan Chu
- Credential
- D.D.S.
- Primary taxonomy
- Periodontics 1223P0300X
- License number
- 45361 CA
Self-reported in NPPES; status is on the state search - Practice location
- 505 South Dr Ste 5, Mountain View, CA 94040
- Phone
- (650) 964-7866
- Enumerated
- May 3, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (650) 964-2718
- Entity
- Type 1 · individual
8 nearest periodontics records → All 929 in California → Look up another NPI →
Also registered at 505 South Dr Ste 5
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shin Young Ahn, DMDPeriodontics1215380043
Verify Eric Ryan Chu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 45361Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% more Medicare Part D claims than the average periodontics in 2024
294 Medicare Part D claims for 117 beneficiaries, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Chlorhexidine Gluconate127 claims
- Amoxicillin56 claims
- Doxycycline Hyclate33 claims
- Azithromycin18 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: $350.54
7 payments; by number, the most common kind was food and beverage; the largest payer was Straumann USA LLC. The 2,966 providers of this specialty with any payment received $1,338.41 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 Ryan Chu among 929 periodontics records in California
Eric Ryan Chu, D.D.S. is one of 929 periodontics records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 29% of them.
- NPI issued2007 · 29% of these records are older, 40% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 78% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Periodontics providers in California
There are 929 periodontics records in California.
All 929 in California → Every provider in Mountain View → Periodontics nationwide →
The 8 periodontics records with the nearest ZIP codes
- Shin Young Ahn, DMDMountain View, CA 940401215380043
- Daniel Nelson, D.D.S.Mountain View, CA 940401619120037
- Joe Provines, D.M.D.Mountain View, CA 940401124118914
- Frank Riccoboni, D.D.S., M.S.Mountain View, CA 940401053453605
- Timothy Wu, D.M.D.Mountain View, CA 940401932226719
- Casey Herrera, D.D.S.Atherton, CA 940271255547345
- Goncalo Bartolo Carames, DDSMenlo Park, CA 940251093511784
- Shantia Kazemi Esfeh, DDS, MSMenlo Park, CA 940251730661885
Common questions
What is Eric Ryan Chu, D.D.S.'s NPI number?
Eric Ryan Chu, D.D.S.'s National Provider Identifier (NPI) is 1184846891, issued on May 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Eric Ryan Chu, D.D.S. located?
The NPPES record lists a practice address at 505 South Dr Ste 5, Mountain View, CA, 94040. Phone: (650) 964-7866. Providers update this record themselves, so call before visiting.
How can I verify Eric Ryan Chu, D.D.S.'s license?
NPPES lists California license number 45361, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Eric Ryan Chu, D.D.S. prescribe under Medicare Part D?
In 2024, Eric Ryan Chu, D.D.S. had 294 Medicare Part D claims for 117 beneficiaries; the average among periodontics prescribers was 277. 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.