Benjamin Hanbok Na, O.D.
Optometrist · San Ramon, CA
Benjamin Hanbok Na, O.D. is an optometrist with a practice address in San Ramon, California, and NPI 1063454130, issued on Jun 12, 2006. Check the license (California 11709TPL, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Benjamin Hanbok Na
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 11709TPL CA
Self-reported in NPPES; status is on the state search - Practice location
- 3191 Crow Canyon PL, San Ramon, CA 94583
- Phone
- (925) 244-1400
- Enumerated
- Jun 12, 2006
- Record last updated
- Jun 25, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (925) 244-1414
- Medicaid ID
- SD0117090 CA
- Medicare enrollment
- Enrolled (PECOS I20060822000324); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 3191 Crow Canyon PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anna Luo, ODOptometrist1154934552
Verify Benjamin Hanbok Na in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 11709TPLCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average optometrist in 2024
84 Medicare Part D claims for 30 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Latanoprost31 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.
Benjamin Hanbok Na among 8,308 optometrist records in California
Benjamin Hanbok Na, O.D. 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 66% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2001 · median 2008 among the 3,573 with a school on file
- Record last updated2013 · 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).
23 optometrist records list a practice address in San Ramon
They are 23 of the 2,281 NPPES records with a practice address in San Ramon, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in San Ramon → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Nahid Abdali, O.D.San Ramon, CA 945831700210242
- Victoria Chiu, O.D.San Ramon, CA 945831477832574
- Jay Delaney, O.D.San Ramon, CA 945831720086135
- Caryn Ha, O.D.San Ramon, CA 945831215059225
- Saria Iqbal, O.D.San Ramon, CA 945831255696688
- C Stephen Johnson, OD FAAOSan Ramon, CA 945831902804875
- Saira Khan, O.D.San Ramon, CA 945831073668117
- Najla Malak-Majdalani, O.D.San Ramon, CA 945831700921426
Common questions
What is Benjamin Hanbok Na, O.D.'s NPI number?
Benjamin Hanbok Na, O.D.'s National Provider Identifier (NPI) is 1063454130, issued on Jun 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Benjamin Hanbok Na, O.D. located?
The NPPES record lists a practice address at 3191 Crow Canyon PL, San Ramon, CA, 94583. Phone: (925) 244-1400. Providers update this record themselves, so call before visiting.
How can I verify Benjamin Hanbok Na, O.D.'s license?
NPPES lists California license number 11709TPL, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Benjamin Hanbok Na, O.D. prescribe under Medicare Part D?
In 2024, Benjamin Hanbok Na, O.D. had 84 Medicare Part D claims for 30 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.