Inning Chen, O.D.
Optometrist · Mesa, AZ
Inning Chen, O.D. is an optometrist with a practice address in Mesa, Arizona, and NPI 1265688402, issued on Aug 7, 2008. Check the license (Arizona 1640, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Inning Chen
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 1640 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1940 S Country Club Dr, Mesa, AZ 85210
- Phone
- (480) 834-6367
- Enumerated
- Aug 7, 2008
- Record last updated
- Oct 30, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160523002681); accepts Medicare assignment
- Medical or professional school
- University Of California - School Of Optometry, 2008
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,336 in Arizona → Look up another NPI →
Also registered at 1940 S Country Club Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Inning Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 1640Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average optometrist in 2024
173 Medicare Part D claims for 47 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.
Most prescribed
- Latanoprost95 claims
- Fluorometholone16 claims
- Neomycin-Polymyxin-Dexameth11 claims
- Timolol Maleate11 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: $371.31
4 payments; by number, the most common kind was food and beverage; the largest payer was Lkc Technologies, Inc. The 34,453 providers of this specialty with any payment received $769.99 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.
Inning Chen among 1,336 optometrist records in Arizona
Inning Chen, O.D. is one of 1,336 optometrist records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 49% of them.
- NPI issued2008 · 49% of these records are older, 48% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2008 · median 2010 among the 746 with a school on file
- Record last updated2014 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
99 optometrist records list a practice address in Mesa
They are 99 of the 9,151 NPPES records with a practice address in Mesa, and 1,336 optometrist records in Arizona.
All 1,336 in Arizona → Every provider in Mesa → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Megan Baker, O.D.Mesa, AZ 852101699765792
- Heather Betsko, O.D.Mesa, AZ 852101841287364
- Bryan Blare, O.D.Mesa, AZ 852101063409548
- Kimberly Cunningham, O.D.Mesa, AZ 852101992936298
- Fred Fisch, O.D.Mesa, AZ 852101003814419
- Carlos Grandela, ODMesa, AZ 852101457848319
- Barry HerndonMesa, AZ 852101447371844
- Shane Johnston, O.D.Mesa, AZ 852101356791545
Common questions
What is Inning Chen, O.D.'s NPI number?
Inning Chen, O.D.'s National Provider Identifier (NPI) is 1265688402, issued on Aug 7, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Inning Chen, O.D. located?
The NPPES record lists a practice address at 1940 S Country Club Dr, Mesa, AZ, 85210. Phone: (480) 834-6367. Providers update this record themselves, so call before visiting.
How can I verify Inning Chen, O.D.'s license?
NPPES lists Arizona license number 1640, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Inning Chen, O.D. prescribe under Medicare Part D?
In 2024, Inning Chen, O.D. had 173 Medicare Part D claims for 47 beneficiaries; the average among optometrist 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.