Theodore Leng, MD
Retina Specialist (Ophthalmology) Physician · Stanford, CA
Theodore Leng, MD is a retina specialist (ophthalmology) physician with a practice address in Stanford, California, and NPI 1144438987, issued on May 17, 2007. Check the license (California A106892, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Theodore Leng
- Credential
- MD
- Primary taxonomy
- Retina Specialist (Ophthalmology) Physician 207WX0107X
- License number
- A106892 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Stanford, CA 94305
- Phone
- (650) 723-4000
- Enumerated
- May 17, 2007
- Record last updated
- Mar 21, 2024
- Medicare enrollment
- Enrolled (PECOS I20090616000573); accepts Medicare assignment
- Medical or professional school
- Stanford University School Of Medicine, 2005
- Entity
- Type 1 · individual
8 nearest retina specialist (ophthalmology) physician records → All 205 in California → Look up another NPI →
Also registered at 300 Pasteur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Theodore Leng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A106892Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average retina specialist (ophthalmology) physician in 2024
155 Medicare Part D claims for 55 beneficiaries, against an average of 620 among the 1,449 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.
Most prescribed
- Azelastine Hcl54 claims
- Ketorolac Tromethamine24 claims
- Prednisolone Acetate24 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: $39,434.41
32 payments; by number, the most common kind was consulting fee; the largest payer was Topcon Healthcare, Inc. The 1,253 providers of this specialty with any payment received $7,667.49 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.
3 hospitals and group practices
- Stanford Health CarePalo Alto, CA · Acute Care Hospitals5 of 5 stars
- County OF Santa ClaraSan Jose, CA
- University Healthcare AllianceLos Gatos, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Theodore Leng among 205 retina specialist (ophthalmology) physician records in California
Theodore Leng, MD is one of 205 retina specialist (ophthalmology) physician records with a practice address in California. 98% 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 35% of them.
- NPI issued2007 · 35% of these records are older, 57% newer
- In a Medicare fileYes · 98% of these records are
- In the CMS Doctors and Clinicians fileYes · 92% of these records are
- Graduated2005 · median 2007 among the 189 with a school on file
- Record last updated2024 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0107X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Retina Specialist (Ophthalmology) Physician providers in California
There are 205 retina specialist (ophthalmology) physician records in California.
All 205 in California → Every provider in Stanford → Retina Specialist (Ophthalmology) Physician nationwide →
The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes
- Natalia Callaway, MDStanford, CA 943051891109294
- Charles Deboer, MDStanford, CA 943051134649973
- Diana Do, MDStanford, CA 943051245270313
- Mary Elizabeth Hartnett, MDStanford, CA 943051871507020
- Quan Hoang, MD, PHDStanford, CA 943051033314257
- Loh-Shan Leung, MDStanford, CA 943051639330772
- Chase Ludwig, MDStanford, CA 943051932556875
- Prithvi Mruthyunjaya, MDStanford, CA 943051073670477
Common questions
What is Theodore Leng, MD's NPI number?
Theodore Leng, MD's National Provider Identifier (NPI) is 1144438987, issued on May 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Theodore Leng, MD located?
The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.
How can I verify Theodore Leng, MD's license?
NPPES lists California license number A106892, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Theodore Leng, MD prescribe under Medicare Part D?
In 2024, Theodore Leng, MD had 155 Medicare Part D claims for 55 beneficiaries; the average among retina specialist (ophthalmology) physician prescribers was 620. 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.