Geoffrey P. Cumming, O.D.
Optometrist · Redwood City, CA
Geoffrey P. Cumming, O.D. is an optometrist with a practice address in Redwood City, California, and NPI 1982757084, issued on Jan 19, 2007. Check the license (California 8446T, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Geoffrey P. Cumming
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 8446T CA
Self-reported in NPPES; status is on the state search - Practice location
- 910 Maple St, Redwood City, CA 94063
- Phone
- (650) 299-2399
- Enumerated
- Jan 19, 2007
- Record last updated
- Dec 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (650) 299-2401
- Medicare enrollment
- Enrolled (PECOS I20121126000357); accepts Medicare assignment
- Medical or professional school
- University Of California - School Of Optometry, 1986
- Entity
- Type 1 · individual
Also registered at 910 Maple St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Debra Cheung, O.D.Optometrist1467780171
- Elisabeth Giessler, O.D.Optometrist1225180912
- Kevin Holtman, O.D.Optometrist1427174432
- Corey Lee, O.D.Optometrist1609933563
- Thomas Longa, O.D.Optometrist1821155656
- David Reinow, O.D.Optometrist1083763957
Verify Geoffrey P. Cumming in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 8446TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average optometrist in 2024
49 Medicare Part D claims for 28 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.
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
- Permanente Medical Group IncRichmond, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Optometrist providers in California
There are 8,308 optometrist records in California.
Other optometrist records in California
- Douglas Aaseby, O.D.El Dorado Hills, CA1962715961
- Saloumeh Abadi, ODSanta Monica, CA1699258756
- Davoud AbbasiFillmore, CA1902361678
- Christopher Abbott, O.D.Santee, CA1417936220
- Sara Abboud, ODAlbany, CA1649052846
- Ghezal Abdali, O.D.Tustin, CA1770688640
- Nahid Abdali, O.D.San Ramon, CA1700210242
- Yasmeen AbdelfattahIrvine, CA1417786617
- Marina Abdou, ODUpland, CA1356017321
- Angela Abe, OPTModesto, CA1336108885
Common questions
What is Geoffrey P. Cumming, O.D.'s NPI number?
Geoffrey P. Cumming, O.D.'s National Provider Identifier (NPI) is 1982757084, issued on Jan 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Geoffrey P. Cumming, O.D. located?
The NPPES record lists a practice address at 910 Maple St, Redwood City, CA, 94063. Phone: (650) 299-2399. Providers update this record themselves, so call before visiting.
How can I verify Geoffrey P. Cumming, O.D.'s license?
NPPES lists California license number 8446T, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Geoffrey P. Cumming, O.D. prescribe under Medicare Part D?
In 2024, Geoffrey P. Cumming, O.D. had 49 Medicare Part D claims for 28 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.