Dilys J. Bart, MD
Ophthalmology Physician · San Francisco, CA
Dilys J. Bart, MD is an ophthalmology physician with a practice address in San Francisco, California, and NPI 1598843963, issued on Nov 1, 2006. Check the license (California G839841, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Dilys J. Bart
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- G839841 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3838 California St, San Francisco, CA 94118
- Phone
- (415) 751-7700
- Enumerated
- Nov 1, 2006
- Record last updated
- Oct 26, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (415) 751-7701
- Medicaid ID
- 00G839841 CA
- Medicare enrollment
- Enrolled (PECOS I20050511000558); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 1993
- Entity
- Type 1 · individual
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Verify Dilys J. Bart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G839841Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average ophthalmology physician in 2024
722 Medicare Part D claims for 139 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 60% of claims.
Most prescribed
- Latanoprost284 claims
- Timolol Maleate111 claims
- Brimonidine Tartrate41 claims
- Dorzolamide Hcl30 claims
- Vyzulta23 claims
- Simbrinza22 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: $150.13
2 payments; by number, the most common kind was food and beverage; the largest payer was Oyster Point Pharma, Inc. The 13,221 providers of this specialty with any payment received $4,535.02 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.
Dilys J. Bart among 2,899 ophthalmology physician records in California
Dilys J. Bart, MD is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1993 · median 2001 among the 1,907 with a school on file
- Record last updated2017 · 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 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in San Francisco → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Steven Cohen, M.D.San Francisco, CA 941181306947643
- Daniel Schainholz, M.D., M.P.H.San Francisco, CA 941181205918273
- Wai Yee, M.D.San Francisco, CA 941181609954098
- Wyndolyn Barnes, M.D.San Francisco, CA 941171255541421
- Aubrey Gilbert, MD, PHDSan Francisco, CA 941171982963427
- Richard Imes, MDSan Francisco, CA 941201053483354
- Sid Borirak, MDSan Francisco, CA 941151841338845
- Adrian Dokey, M.D.San Francisco, CA 941151518203207
Common questions
What is Dilys J. Bart, MD's NPI number?
Dilys J. Bart, MD's National Provider Identifier (NPI) is 1598843963, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Dilys J. Bart, MD located?
The NPPES record lists a practice address at 3838 California St, San Francisco, CA, 94118. Phone: (415) 751-7700. Providers update this record themselves, so call before visiting.
How can I verify Dilys J. Bart, MD's license?
NPPES lists California license number G839841, 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 Dilys J. Bart, MD prescribe under Medicare Part D?
In 2024, Dilys J. Bart, MD had 722 Medicare Part D claims for 139 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.