Xiao-Ou Ren, O. D.
Optometrist · Watchung, NJ
Xiao-Ou Ren, O. D. is an optometrist with a practice address in Watchung, New Jersey, and NPI 1679658009, issued on Oct 26, 2006. Check the license (New Jersey 27TO 00139800, as entered in NPPES) with the New Jersey board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Xiao-Ou Ren
- Credential
- O. D.
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- 27TO 00139800 NJ
OA 00601200 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 1515 US Highway 22, Watchung, NJ 07069
- Phone
- (908) 769-6421
- Enumerated
- Oct 26, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (908) 769-7931
- Medicare enrollment
- Enrolled (PECOS I20070213000021); accepts Medicare assignment
- Medical or professional school
- State University Of New York - State College Optometry, 2005
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,542 in New Jersey → Look up another NPI →
Also registered at 1515 US Highway 22
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Abyaz Uppal, ODOptometrist1184346413
Verify Xiao-Ou Ren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
Search for license 27TO 00139800Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average optometrist in 2024
42 Medicare Part D claims for 16 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.
Most prescribed
- Latanoprost15 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: $97.93
1 payment: food and beverage; the largest payer was Bausch & Lomb Americas 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.
Xiao-Ou Ren among 1,542 optometrist records in New Jersey
Xiao-Ou Ren, O. D. is one of 1,542 optometrist records with a practice address in New Jersey. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 58% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2005 · median 2006 among the 906 with a school on file
- Record last updated2007 · 69% 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 New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 optometrist records list a practice address in Watchung
They are 12 of the 177 NPPES records with a practice address in Watchung, and 1,542 optometrist records in New Jersey.
All 1,542 in New Jersey → Every provider in Watchung → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Donald Alvarez, O.D.Watchung, NJ 070691922210947
- Marlene Beshai, O.D.Watchung, NJ 070691134550247
- Paul Hadley, O.D.Watchung, NJ 070691619936648
- Ivana Haros, ODWatchung, NJ 070691578431474
- Christina Karabatsos, O.D.Watchung, NJ 070691548361363
- Mohammad Karim, O.DWatchung, NJ 070691598104556
- Maureen McCleery, ODWatchung, NJ 070691265519268
- Eric Robinson, O.D.Watchung, NJ 070691417169426
Common questions
What is Xiao-Ou Ren, O. D.'s NPI number?
Xiao-Ou Ren, O. D.'s National Provider Identifier (NPI) is 1679658009, issued on Oct 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Xiao-Ou Ren, O. D. located?
The NPPES record lists a practice address at 1515 US Highway 22, Watchung, NJ, 07069. Phone: (908) 769-6421. Providers update this record themselves, so call before visiting.
How can I verify Xiao-Ou Ren, O. D.'s license?
NPPES lists New Jersey license number 27TO 00139800, as entered by the provider. Search the New Jersey board that licenses this profession; the NPPES record confirms identity only.
How much does Xiao-Ou Ren, O. D. prescribe under Medicare Part D?
In 2024, Xiao-Ou Ren, O. D. had 42 Medicare Part D claims for 16 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.