Tien Johnny Bao Cao-Nguyen, OD
Optometrist · Encinitas, CA
Tien Johnny Bao Cao-Nguyen, OD is an optometrist with a practice address in Encinitas, California, and NPI 1477121713, issued on Jun 14, 2021. Check the license (California OPT34988-TLG, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tien Johnny Bao Cao-Nguyen
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- OPT34988-TLG CA
TUV009413-01 NY
Self-reported in NPPES; status is on the state search - Practice location
- 477 N EL Camino Real Ste C202, Encinitas, CA 92024
- Phone
- (760) 631-3500
- Enumerated
- Jun 14, 2021
- Record last updated
- Mar 22, 2023
- Medicare enrollment
- Enrolled (PECOS I20230818001690); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 477 N EL Camino Real Ste C202
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ardalan Aminlari, MDGlaucoma Specialist (Ophthalmology) Physician1639497258
- Bill Codner, O.D.Corneal and Contact Management Optometrist1245299338
- Alexander Foster, M.D.Cornea and External Diseases Specialist Physician1033407275
- Eric Johnston, MDOphthalmology Physician1114916053
- Mona Moshtaghi, ODOptometrist1730609181
- Marianna Samuels, O.D.Optometrist1760767461
Verify Tien Johnny Bao Cao-Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license OPT34988-TLGCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% more Medicare Part D claims than the average optometrist in 2024
378 Medicare Part D claims for 130 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of claims.
Most prescribed
- Latanoprost146 claims
- Timolol Maleate38 claims
- Xiidra23 claims
- Lumigan21 claims
- Restasis18 claims
- Dorzolamide-Timolol17 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 91.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $166.79
8 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. 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.
Bills Medicare through one group practice
- Eyecare Solutions IncEncinitas, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tien Johnny Bao Cao-Nguyen among 8,308 optometrist records in California
Tien Johnny Bao Cao-Nguyen, OD is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 86% of them.
- NPI issued2021 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2021 · median 2008 among the 3,573 with a school on file
- Record last updated2023 · 67% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
28 optometrist records list a practice address in Encinitas
They are 28 of the 1,874 NPPES records with a practice address in Encinitas, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Encinitas → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Jeffrey Anshel, O.D.Encinitas, CA 920241750386843
- Victor Copeland, ODEncinitas, CA 920241790755908
- Deborah Haug, O.D.Encinitas, CA 920241538128129
- Ray Hutchinson, O.D.Encinitas, CA 920241598730772
- Acharlotte Jaques, O.D.Encinitas, CA 920241063671790
- George Kresovich, ODEncinitas, CA 920241467587683
- Jeanne Louie, O.D.Encinitas, CA 920241518936186
- Barry Mozlin, O.D.Encinitas, CA 920241417086331
Common questions
What is Tien Johnny Bao Cao-Nguyen, OD's NPI number?
Tien Johnny Bao Cao-Nguyen, OD's National Provider Identifier (NPI) is 1477121713, issued on Jun 14, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Tien Johnny Bao Cao-Nguyen, OD located?
The NPPES record lists a practice address at 477 N EL Camino Real Ste C202, Encinitas, CA, 92024. Phone: (760) 631-3500. Providers update this record themselves, so call before visiting.
How can I verify Tien Johnny Bao Cao-Nguyen, OD's license?
NPPES lists California license number OPT34988-TLG, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Tien Johnny Bao Cao-Nguyen, OD prescribe under Medicare Part D?
In 2024, Tien Johnny Bao Cao-Nguyen, OD had 378 Medicare Part D claims for 130 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
What is Tien Johnny Bao Cao-Nguyen, OD's MIPS final score?
The 2023 MIPS final score is 91.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.