Joann Henwood, O.D.
Optometrist · San Dimas, CA
Joann Henwood, O.D. is an optometrist with a practice address in San Dimas, California, and NPI 1689024523, issued on Jun 21, 2016. Check the license (California 33399, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Joann Henwood
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 33399 CA
Self-reported in NPPES; status is on the state search - Practice location
- 120 W Bonita Ave, San Dimas, CA 91773
- Phone
- (909) 599-1100
- Enumerated
- Jun 21, 2016
- Record last updated
- Sep 2, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160921000425); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 120 W Bonita Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Richard Garratt, O.D.Optometrist1598813800
Verify Joann Henwood in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 33399Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14.8 times the Medicare Part D claims of the average optometrist in 2024
4,109 Medicare Part D claims for 1,391 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 42% of claims.
Most prescribed
- Latanoprost1,111 claims
- Prednisolone Acetate389 claims
- Dorzolamide-Timolol375 claims
- Brimonidine Tartrate357 claims
- Timolol Maleate284 claims
- Ofloxacin232 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): 81.5 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: $241.98
8 payments; by number, the most common kind was 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.
Bills Medicare through one group practice
- Pacific Eye Institute A Medical Group IncEastvale, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joann Henwood among 8,308 optometrist records in California
Joann Henwood, 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 2016, is newer than 73% of them.
- NPI issued2016 · 73% of these records are older, 24% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2016 · median 2008 among the 3,573 with a school on file
- 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).
18 optometrist records list a practice address in San Dimas
They are 18 of the 942 NPPES records with a practice address in San Dimas, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in San Dimas → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Suzan Burmayan, ODSan Dimas, CA 917731619498078
- Jennifer Chan, ODSan Dimas, CA 917731447734439
- Erin Duncan, ODSan Dimas, CA 917731821191222
- Richard Garratt, O.D.San Dimas, CA 917731598813800
- Abigayle Gutierrez, ODSan Dimas, CA 917731134640048
- Kellie-Anne Ishii-Kim, ODSan Dimas, CA 917731710465372
- Julie Lam, O.D.San Dimas, CA 917731730560889
- Ashley Nakamura, O.D.San Dimas, CA 917731992251490
Common questions
What is Joann Henwood, O.D.'s NPI number?
Joann Henwood, O.D.'s National Provider Identifier (NPI) is 1689024523, issued on Jun 21, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Joann Henwood, O.D. located?
The NPPES record lists a practice address at 120 W Bonita Ave, San Dimas, CA, 91773. Phone: (909) 599-1100. Providers update this record themselves, so call before visiting.
How can I verify Joann Henwood, O.D.'s license?
NPPES lists California license number 33399, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Joann Henwood, O.D. prescribe under Medicare Part D?
In 2024, Joann Henwood, O.D. had 4,109 Medicare Part D claims for 1,391 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
What is Joann Henwood, O.D.'s MIPS final score?
The 2023 MIPS final score is 81.5 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.