WILLIAM BRENNAN DAVIS MD
NPI 1700413143
Ophthalmology in Philadelphia, PA

Active since March 25, 2020PECOS EnrolledAccepts Medicare Assignment
840 WALNUT ST STE 1230, PHILADELPHIA, PA 19107(215) 928-3041(215) 928-3225 Get Directions Write a Review

NPPES record last updated: May 23, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 23, 2025, Jun 8, 2021, Mar 31, 2020 and 1 more (4 updates tracked since 2020).

About William Brennan Davis Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM BRENNAN DAVIS MD (NPI 1700413143) is an individual ophthalmology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD484289) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Wills Eye Hospital, and is a graduate of Louisiana State University School Of Medicine In New Orleans (2020).

NPPES Registry Identity

NPI1700413143
Entity TypeIndividualMale
Primary Taxonomy207W00000X
Provider Legal NameWILLIAM BRENNAN DAVISCredential: MD
Location Address840 WALNUT ST STE 1230Philadelphia, PA 19107-5109
Mailing Address840 Walnut St Ste 1230Philadelphia, PA 19107-5109 · (215) 928-3041 · Fax (215) 928-3225
Fax(215) 928-3225
Sole ProprietorNo
Medical School CMSLouisiana State University School Of Medicine In New OrleansGraduated 2020
Enumeration DateMarch 25, 2020
Last NPPES UpdateMay 23, 20254 updates tracked since enumeration
NPPES CertifiedMay 23, 2025
NPI 1700413143 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
License Licensed in PA · MD484289
Definition
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
840 WALNUT ST STE 1230, Philadelphia, PA 19107

Other Names 1

Professional Name (2)Bren Davis M.d.

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

William Brennan Davis Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5799227575
PECOS Enrollment IDI20240607002147
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient complete exam of visual system 92014
An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.
100 services99 patients
Measurement of corneal curvature and depth of eye 92136
This procedure measures the shape and depth of your eye, specifically the cornea, the clear front surface. It helps in diagnosing conditions, planning for surgeries, or fitting contact lenses. It's non-invasive and painless.
53 services42 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
53 services48 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
53 services49 patients
Photography of the retina 92250
Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.
45 services45 patients
Imaging of retina 92134
Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.
43 services43 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Wills Eye Hospital

Acute Care Hospitals · Philadelphia, PA
OwnershipVoluntary non-profit - Private
CMS Certification Number390331
Location840 Walnut StreetPhiladelphia, PA 19107 · Philadelphia County

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19107 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$137.17 typical visit price
range $59.88 – $180.99
Typical copayment $34.29 (range $14.97 – $45.24)
Most-billed visit code 99204
Established Patient
$74.47 typical visit price
range $19.30 – $147.29
Typical copayment $18.61 (range $4.82 – $36.82)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Ophthalmology
840 WALNUT ST STE 1230
PHILADELPHIA, PA 19107
Ophthalmology
840 WALNUT ST STE 1230
PHILADELPHIA, PA 19107
Ophthalmology
840 WALNUT ST STE 1230
PHILADELPHIA, PA 19107
Ophthalmology
840 WALNUT ST STE 1230
PHILADELPHIA, PA 19107
Optometrist
840 WALNUT ST STE 1230
PHILADELPHIA, PA 19107
Ophthalmology
840 WALNUT ST STE 1230
PHILADELPHIA, PA 19107
Ophthalmology
840 WALNUT ST STE 1230
PHILADELPHIA, PA 19107
Ophthalmology
840 WALNUT ST STE 1230
PHILADELPHIA, PA 19107

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Davis's NPI number?

The NPI number for William Davis is 1700413143. It was assigned to this individual provider in the NPPES registry on March 25, 2020. The provider is also known as Bren Davis M.D..

Where is William Davis located?

William Davis practices at 840 Walnut St Ste 1230, Philadelphia, PA 19107. The listed phone number is (215) 928-3041.

What is William Davis's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is William Davis enrolled in Medicare?

Yes. William Davis is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does William Davis accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Buckeye Health Plan, Blue Cross Blue Shield of Wyoming and Blue Cross and Blue Shield of Louisiana and 5 other insurers list William Davis as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is William Davis affiliated with any hospitals?

According to CMS data, William Davis is affiliated with Wills Eye Hospital.

When was this NPI record last updated?

The NPPES record for William Davis was last updated on May 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.