WILLIAM G. TSIARAS M.D.
NPI 1376609180
Ophthalmology in Providence, RI

Q: What is William Tsiaras's NPI number?

The NPI number for William Tsiaras is 1376609180. It was assigned to this individual provider in the NPPES registry on December 28, 2006.

Q: What is William Tsiaras's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for William Tsiaras was last updated on July 18, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.

Active since December 28, 2006PECOS EnrolledAccepts Medicare Assignment

75/100

CMS Quality Rating

78 BAKER ST, PROVIDENCE, RI 02905(401) 831-4592(401) 831-4643 Get Directions Write a Review

NPPES record last updated: July 18, 2016. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About William G. Tsiaras M.d. NPPES

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

WILLIAM G. TSIARAS M.D. (NPI 1376609180) is an individual ophthalmology provider in Providence, Rhode Island, licensed in Rhode Island (4952) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS and is a graduate of Warren Alpert Medical School Of Brown University (1975).

NPPES Registry Identity

NPI1376609180

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameWILLIAM G. TSIARASCredential: M.D.

Location Address78 BAKER STProvidence, RI 02905-4417

Mailing Address78 Baker StProvidence, RI 02905-4417 · (401) 831-4592 · Fax (401) 831-4643

Phone(401) 831-4592

Fax(401) 831-4643

Sole ProprietorYes

Medical School CMSWarren Alpert Medical School Of Brown UniversityGraduated 1975

Enumeration DateDecember 28, 2006

Last NPPES UpdateJuly 18, 2016

✔ NPI 1376609180 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in RI · 4952

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.

78 BAKER ST, Providence, RI 02905

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Other Identifiers 8

Other834RI · Bcbs Of Ri

Other15064RIHRI · Harvard Pilgrim Healthcare

Other002289RI · Bcbs - Blue Chip

Other9810RI · Neighborhood Health Plan Of Ri

Medicare UPINC-90046RI

Medicaid9000834RI

Other180021373RI · Railroad Medicare

Medicare PIN189000834RI

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 G. Tsiaras M.d. 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 ID4385775287

PECOS Enrollment IDI20100621000671

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 5

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.

762 services530 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.

278 services204 patients

Imaging of optic nerve 92133

Imaging of the optic nerve is a non-invasive procedure that captures detailed pictures of your optic nerve. It helps doctors assess eye health, particularly for conditions like glaucoma. It's painless, quick, and uses safe technology like MRI or OCT (Optical Coherence Tomography).

97 services84 patients

Established patient problem focused exam of visual system 92012

This is a routine check-up for existing patients focusing on the visual system. It involves examining your eyes to detect any potential issues or changes in your vision. It's a crucial part of maintaining good eye health.

31 services26 patients

Exam of visual field with extended testing 92083

An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.

15 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02905 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

$134.17 typical visit price

range $58.57 – $177.03

Typical copayment $33.54 (range $14.64 – $44.25)

Most-billed visit code 99204

Established Patient

$72.93 typical visit price

range $18.92 – $144.38

Typical copayment $18.23 (range $4.73 – $36.09)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

75/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Other Providers at the Same Location NPPES 11

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

MRS. JOSEPHINE MARIA BARNDS BROWN PA

Physician Assistant (Medical)