Susan C. Lodenquai, O.D.
Optometrist · Los Altos, CA
Susan C. Lodenquai, O.D. is an optometrist with a practice address in Los Altos, California, and NPI 1336146257, issued on Jul 7, 2005. Check the license (California 12700, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Susan C. Lodenquai
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 12700 CA
Self-reported in NPPES; status is on the state search - Practice location
- 668B Fremont Ave, Los Altos, CA 94024
- Phone
- (650) 948-5061
- Enumerated
- Jul 7, 2005
- Record last updated
- Nov 4, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (650) 948-5090
- Medicare enrollment
- Enrolled (PECOS I20070717000460); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Verify Susan C. Lodenquai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 12700Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average optometrist in 2024
52 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 50% of claims.
Most prescribed
- Latanoprost38 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.
Industry payments in 2024: $405.08
5 payments; by number, the most common kind was food and beverage; the largest payer was Sight Sciences, 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
- Permanente Medical Group IncTracy, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Susan C. Lodenquai among 8,308 optometrist records in California
Susan C. Lodenquai, 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 fileYes · 43% of these records are
- Graduated2004 · median 2008 among the 3,573 with a school on file
- Record last updated2011 · 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).
15 optometrist records list a practice address in Los Altos
They are 15 of the 718 NPPES records with a practice address in Los Altos, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Los Altos → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Morvari Ahi, O.D.Los Altos, CA 940241548651565
- Hao Tran, O.D.Los Altos, CA 940241639562614
- Ann ChangMenlo Park, CA 940251114300084
- Lisa Delos Santos, O.D.Menlo Park, CA 940251730201294
- Jessie Hwang, O.D.Menlo Park, CA 940251083766810
- Lenna KhayatMenlo Park, CA 940251982003620
- Spencer Lau, O.D.Menlo Park, CA 940251740351105
- Brian Quan, O.D.Menlo Park, CA 940251144371451
Common questions
What is Susan C. Lodenquai, O.D.'s NPI number?
Susan C. Lodenquai, O.D.'s National Provider Identifier (NPI) is 1336146257, issued on Jul 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Susan C. Lodenquai, O.D. located?
The NPPES record lists a practice address at 668B Fremont Ave, Los Altos, CA, 94024. Phone: (650) 948-5061. Providers update this record themselves, so call before visiting.
How can I verify Susan C. Lodenquai, O.D.'s license?
NPPES lists California license number 12700, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Susan C. Lodenquai, O.D. prescribe under Medicare Part D?
In 2024, Susan C. Lodenquai, O.D. had 52 Medicare Part D claims; 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.