Rupert C. Chowins, O.D.
Optometrist · San Luis Obispo, CA
Rupert C. Chowins, O.D. is an optometrist with a practice address in San Luis Obispo, California, and NPI 1750368304, issued on Dec 26, 2005. Check the license (California 8693T, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Rupert C. Chowins
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 8693T CA
Self-reported in NPPES; status is on the state search - Practice location
- 3855 Broad Street, San Luis Obispo, CA 93401
- Phone
- (805) 545-8100
- Enumerated
- Dec 26, 2005
- Record last updated
- Mar 24, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (805) 548-8785
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 3855 Broad Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Scot Class, O.D.Optometrist1285862227
- Robert Dirksen, O.D.Optometrist1174669899
- Robert Higginbotham, M.D.Ophthalmology Physician1609878834
- Christopher Hulburd, M.D.Ophthalmology Physician1437199916
- William McRee, MDOphthalmology Physician1215945126
- Joseph Oldenburg, M.D.Ophthalmology Physician1881682193
Verify Rupert C. Chowins in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 8693TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 87.5 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: $16.40
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.
Rupert C. Chowins among 8,308 optometrist records in California
Rupert C. Chowins, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2016 · 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 San Luis Obispo → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Bryce Blue, O.D.San Luis Obispo, CA 934011548387590
- Scot Class, O.D.San Luis Obispo, CA 934011285862227
- Robert Dirksen, O.D.San Luis Obispo, CA 934011174669899
- Vanessa Ewing, O.D.San Luis Obispo, CA 934011780874453
- Glenn Graham, ODSan Luis Obispo, CA 934011871687640
- Gina Hellman, ODSan Luis Obispo, CA 934011801319884
- Martin Hetland, ODSan Luis Obispo, CA 934011851384218
- Kimberly Johnson, O.D.San Luis Obispo, CA 934011366595639
Common questions
What is Rupert C. Chowins, O.D.'s NPI number?
Rupert C. Chowins, O.D.'s National Provider Identifier (NPI) is 1750368304, issued on Dec 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Rupert C. Chowins, O.D. located?
The NPPES record lists a practice address at 3855 Broad Street, San Luis Obispo, CA, 93401. Phone: (805) 545-8100. Providers update this record themselves, so call before visiting.
How can I verify Rupert C. Chowins, O.D.'s license?
NPPES lists California license number 8693T, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
What is Rupert C. Chowins, O.D.'s MIPS final score?
The 2023 MIPS final score is 87.5 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.