John S. Shan, O.D.
Optometrist · North Hills, CA
John S. Shan, O.D. is an optometrist with a practice address in North Hills, California, and NPI 1184823221, issued on Jul 17, 2007. Check the license (California 13317, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John S. Shan
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 13317 CA
Self-reported in NPPES; status is on the state search - Practice location
- 16111 Plummer St, North Hills, CA 91343
- Phone
- (818) 891-7711
- Enumerated
- Jul 17, 2007
- Record last updated
- Nov 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20121101000468); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 16111 Plummer St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sara AhdootStudent in an Organized Health Care Education/Training Program1225786981
- Cathy Alessi, M.D.Geriatric Medicine (Internal Medicine) Physician1134224983
- Allen AmirantPharmacotherapy Pharmacist1639273659
- Leann Arjona, MSWClinical Social Worker1376810036
- Jeffrey Asano, D.D.SDentist1245734334
- Rajnikant Bakhda, MDDiagnostic Radiology Physician1265539282
Verify John S. Shan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 13317Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 51% of the cost of the top drugs
435 Medicare Part D claims for 168 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 46% of claims.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Latanoprost185 claims
- Adacel Tdap63 claims
- Shingrix55 claims
- Cyclosporine49 claims
- Dorzolamide-Timolol48 claims
- Brimonidine Tartrate14 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupMission Hills, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John S. Shan among 8,308 optometrist records in California
John S. Shan, 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 2007, is newer than 34% of them.
- NPI issued2007 · 34% of these records are older, 46% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2007 · median 2008 among the 3,573 with a school on file
- Record last updated2021 · 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).
Optometrist providers in California
There are 8,308 optometrist records in California.
All 8,308 in California → Every provider in North Hills → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Oanh DuongSepulveda, CA 913431205531993
- Steven Ferrucci, ODSepulveda, CA 913431225053267
- Josephine Leung, ODNorth Hills, CA 913431194584284
- Jasmine Lynn, O.DSepulveda, CA 913431487158622
- Natasha MartinezNorth Hills, CA 913431245186642
- Paula Matsuno, O.D.North Hills, CA 913431407143290
- Stephanie ThaungNorth Hills, CA 913431942693700
- Billy WangNorth Hills, CA 913431588205140
Common questions
What is John S. Shan, O.D.'s NPI number?
John S. Shan, O.D.'s National Provider Identifier (NPI) is 1184823221, issued on Jul 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John S. Shan, O.D. located?
The NPPES record lists a practice address at 16111 Plummer St, North Hills, CA, 91343. Phone: (818) 891-7711. Providers update this record themselves, so call before visiting.
How can I verify John S. Shan, O.D.'s license?
NPPES lists California license number 13317, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does John S. Shan, O.D. prescribe under Medicare Part D?
In 2024, John S. Shan, O.D. had 435 Medicare Part D claims for 168 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.