DR. WILLIAM C. STEWART M.D.
NPI 1497740161
Ophthalmology in Houston, TX

Q: What is William Stewart's NPI number?

The NPI number for William Stewart is 1497740161. It was assigned to this individual provider in the NPPES registry on September 19, 2005. The provider is also known as Dr. William C. Stewart M.D..

Q: What is William Stewart'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 Stewart was last updated on March 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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 September 19, 2005PECOS EnrolledAccepts Medicare Assignment

93.42/100

CMS Quality Rating

1415 NORTH LOOP W STE 400, HOUSTON, TX 77008(713) 869-6400 Get Directions Write a Review

NPPES record last updated: March 22, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. William C. Stewart M.d. NPPES

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

DR. WILLIAM C. STEWART M.D. (NPI 1497740161) is an individual ophthalmology provider in Houston, Texas, licensed in Texas (L2015) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS and is a graduate of Other (1992).

NPPES Registry Identity

NPI1497740161

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameDR. WILLIAM C. STEWARTCredential: M.D.

Location Address1415 NORTH LOOP W STE 400Houston, TX 77008-1646

Mailing Address2855 Gramercy St Ste 400Houston, TX 77025-1697 · (713) 668-6828

Phone(713) 869-6400

Sole ProprietorNo

Medical School CMSOtherGraduated 1992

Enumeration DateSeptember 19, 2005

Last NPPES UpdateMarch 22, 2021

NPPES CertifiedMarch 22, 2021

✔ NPI 1497740161 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in TX · L2015

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.

1415 NORTH LOOP W STE 400, Houston, TX 77008

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Other Names 1

Professional Name (2)Dr. William C. Stewart M.d.

Other Identifiers 1

Medicaid152673301TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.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

Dr. William C. Stewart 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 ID5092603522

PECOS Enrollment IDI20100714000777

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 7

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.

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.

251 services155 patients

Removal of cataract with insertion of prosthetic lens 66984

This is a procedure where a cloudy lens in your eye, known as a cataract, is removed. After removal, a clear artificial lens is inserted. This helps to restore your vision, enabling you to see clearly again.

220 services130 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

114 services114 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.

83 services80 patients

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.

34 services32 patients

Removal of recurring cataract in lens capsule using a laser 66821

This procedure, known as YAG laser capsulotomy, treats cloudiness in the lens capsule following cataract surgery. A laser is used to create a small hole in the cloudy capsule, allowing light to pass through and restore clear vision. It's a quick, painless procedure.

33 services33 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77008 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

$134.06 typical visit price

range $58.24 – $176.98

Typical copayment $33.51 (range $14.56 – $44.24)

Most-billed visit code 99204

Established Patient

$72.62 typical visit price

range $18.60 – $143.93

Typical copayment $18.15 (range $4.65 – $35.98)

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.

93.42/100

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

Scored as part of a group practice

Quality

98.14

Improvement Activities

Cost

81.47

Other Providers at the Same Location NPPES 4

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

DR. MITCHELL M. PORIAS D.O.

Ophthalmology

1415 NORTH LOOP W STE 400
HOUSTON, TX 77008

Harris County (713) 869-6400

DR. KEVIN Y. JONG M.D.

Ophthalmology

1415 NORTH LOOP W STE 400
HOUSTON, TX 77008

Harris County (713) 869-6400

DR. BECKY JO FREDRICKSON M.D.,PH.D.

Ophthalmology

1415 NORTH LOOP W STE 400
HOUSTON, TX 77008

Harris County (713) 869-6400

DR. JAMIE ELIZABETH DANIELIDES OD

Optometrist

1415 NORTH LOOP W STE 400
HOUSTON, TX 77008

Harris County (713) 869-6400

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 Stewart's NPI number?

The NPI number for William Stewart is 1497740161. It was assigned to this individual provider in the NPPES registry on September 19, 2005. The provider is also known as Dr. William C. Stewart M.D..

Where is William Stewart located?

William Stewart practices at 1415 North Loop W Ste 400, Houston, TX 77008. The listed phone number is (713) 869-6400.

What is William Stewart's specialty?

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

Is William Stewart enrolled in Medicare?

Yes. William Stewart 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 Stewart accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 4 other insurers list William Stewart 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.

When was this NPI record last updated?

The NPPES record for William Stewart was last updated on March 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.