William Brennan Davis, MD
Ophthalmology Physician · Philadelphia, PA
William Brennan Davis, MD is an ophthalmology physician with a practice address in Philadelphia, Pennsylvania, and NPI 1700413143, issued on Mar 25, 2020. Check the license (Pennsylvania MD484289, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- William Brennan Davis
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- MD484289 PA
Self-reported in NPPES; status is on the state search - Practice location
- 840 Walnut St Ste 1230, Philadelphia, PA 19107
- Phone
- (215) 928-3041
- Enumerated
- Mar 25, 2020
- Record last updated
- May 23, 2025
- Fax
- (215) 928-3225
- Medicare enrollment
- Enrolled (PECOS I20240607002147); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 2020
- Entity
- Type 1 · individual
Also registered at 840 Walnut St Ste 1230
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Eliza Barnwell, MDOphthalmology Physician1568991859
- Elizabeth Derham, MDOphthalmology Physician1144481060
- Sandra Juhn, O.D.Optometrist1437519238
- Daniel Kane, MDOphthalmology Physician1700847282
Verify William Brennan Davis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD484289Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% fewer Medicare Part D claims than the average ophthalmology physician in 2024
749 Medicare Part D claims for 213 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.
Most prescribed
- Latanoprost267 claims
- Dorzolamide-Timolol126 claims
- Brimonidine Tartrate80 claims
- Prednisolone Acetate49 claims
- Erythromycin23 claims
- Rhopressa22 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: $236.81
6 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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.
Bills Medicare through one group practice
- Wills Eye Ophthalmology Clinic, IncPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ophthalmology Physician providers in Pennsylvania
There are 1,088 ophthalmology physician records in Pennsylvania.
All 1,088 in Pennsylvania → Every provider in Philadelphia →
Other ophthalmology physician records in Pennsylvania
- Omar Abbasi, MDPittsburgh, PA1598967630
- Javaneh Abbasian, M.DPhiladelphia, PA1790951036
- Salwa Abdel-Aziz, MDPittsburgh, PA1295961043
- Michael Abendroth, MDPhiladelphia, PA1750743498
- Mouhammed Abuattieh, MDWilkes Barre, PA1790931186
- Luis Acaba-BerrocalPhiladelphia, PA1336768852
- Stacey Ackerman, MDPhiladelphia, PA1508868498
- Wesley Adams, M.D.Williamsport, PA1184809956
- Houman Ahdieh, M.D.Allentown, PA1659371060
- Christopher Ahmed, MDPhiladelphia, PA1013647577
Common questions
What is William Brennan Davis, MD's NPI number?
William Brennan Davis, MD's National Provider Identifier (NPI) is 1700413143, issued on Mar 25, 2020. An NPI identifies a provider in billing; it is not a license.
Where is William Brennan Davis, MD located?
The NPPES record lists a practice address at 840 Walnut St Ste 1230, Philadelphia, PA, 19107. Phone: (215) 928-3041. Providers update this record themselves, so call before visiting.
How can I verify William Brennan Davis, MD's license?
NPPES lists Pennsylvania license number MD484289, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Brennan Davis, MD prescribe under Medicare Part D?
In 2024, William Brennan Davis, MD had 749 Medicare Part D claims for 213 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.