DR. WINSTON DOUGLAS CHAMBERLAIN MD, PHD
NPI 1710108162
Ophthalmology - Cornea and External Diseases Specialist in Portland, OR

Q: What is Winston Chamberlain's NPI number?

The NPI number for Winston Chamberlain is 1710108162. It was assigned to this individual provider in the NPPES registry on May 2, 2007.

Q: What is Winston Chamberlain's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Cornea and External Diseases Specialist, with taxonomy code 207WX0120X.

Active since May 02, 2007PECOS EnrolledAccepts Medicare Assignment

97.83/100

CMS Quality Rating

3375 SW TERWILLIGER BLVD, PORTLAND, OR 97239(503) 494-3000(503) 494-4286 Get Directions Write a Review

NPPES record last updated: April 9, 2018. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Winston Douglas Chamberlain Md, Phd NPPES

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

DR. WINSTON DOUGLAS CHAMBERLAIN MD, PHD (NPI 1710108162) is an individual cornea and external diseases specialist in Portland, Oregon, licensed in Oregon (MD28180) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS and is a graduate of University Of Colorado School Of Medicine, Denver (2002).

NPPES Registry Identity

NPI1710108162

Entity TypeIndividualMale

Primary Taxonomy207WX0120X

Provider Legal NameDR. WINSTON DOUGLAS CHAMBERLAINCredential: MD, PHD

Location Address3375 SW TERWILLIGER BLVDPortland, OR 97239-4146

Mailing Address3375 Sw Terwilliger BlvdPortland, OR 97239-4146 · (503) 494-3000 · Fax (503) 494-4286

Phone(503) 494-3000

Fax(503) 494-4286

Sole ProprietorNo

Medical School CMSUniversity Of Colorado School Of Medicine, DenverGraduated 2002

Enumeration DateMay 2, 2007

Last NPPES UpdateApril 9, 2018

✔ NPI 1710108162 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOphthalmology · Cornea and External Diseases SpecialistAllopathic & Osteopathic Physicians

Taxonomy Code207WX0120X

License✔ Licensed in OR · MD28180

Definition

An ophthalmologist who specializes in diseases of the cornea, sclera, eyelids, conjunctiva, and anterior segment of the eye.

Also ListedOphthalmologyTaxonomy 207W00000X · License A89422 (CA), MD28180 (OR)

3375 SW TERWILLIGER BLVD, Portland, OR 97239

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Moda Health Plan, Inc..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. Winston Douglas Chamberlain Md, Phd 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 ID2264525476

PECOS Enrollment IDI20080708000272

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 15

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 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.

156 services135 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

156 services131 patients

Ct scan of cornea 92025

A CT scan of the cornea is a non-invasive imaging test that uses X-rays to capture detailed pictures of your eye's cornea. It helps in diagnosing diseases or damage, planning for surgery, or evaluating the results of a treatment. It's a safe and painless procedure.

76 services74 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.

64 services47 patients

Ultrasound scan of cornea to determine thickness 76514

An ultrasound scan of the cornea is a non-invasive procedure that uses sound waves to measure the thickness of your cornea. This helps in diagnosing certain eye conditions and planning treatments. No discomfort or pain is typically experienced.

57 services52 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.

42 services33 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.

29 services22 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

24 services24 patients

Photography of content of eyes 92285

Photography of the content of eyes, also known as ocular photography, captures detailed images of different parts of the eye. It helps identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. The process is non-invasive and painless.

22 services19 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

19 services19 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.

18 services13 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.

13 services12 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

13 services13 patients

Removal of outer layer of cornea 65435

The removal of the outer layer of the cornea is a procedure aimed at improving vision. It involves gently removing the surface layer of the eye's cornea to allow for reshaping, which can correct vision problems. It's typically done under local anesthesia.

12 services12 patients

Transplantation of outer layer of corneal tissue 65756

The transplantation of the outer layer of corneal tissue is a procedure to replace damaged or diseased corneal tissue with healthy tissue from a donor. This can improve vision and alleviate pain or discomfort.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97239 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

$134.16 typical visit price

range $58.99 – $176.88

Typical copayment $33.54 (range $14.74 – $44.22)

Most-billed visit code 99204

Established Patient

$73.28 typical visit price

range $19.32 – $144.79

Typical copayment $18.32 (range $4.83 – $36.19)

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.

97.83/100

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

Scored through an Alternative Payment Model

Quality

80.97

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES 20

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

ALLISON REBECCA LOH M.D.

Ophthalmology (Pediatric Ophthalmology and Strabismus Specialist)

3375 SW TERWILLIGER BLVD
PORTLAND, OR 97239

Multnomah County (503) 494-3000

MR. AMR M ZAKI M.D.

Student in an Organized Health Care Education/Training Program

3375 SW TERWILLIGER BLVD
PORTLAND, OR 97239

Multnomah County (902) 449-6650

RICHARD GORDON WELEBER MD

Ophthalmology

3375 SW TERWILLIGER BLVD
PORTLAND, OR 97239

Multnomah County (503) 494-8386

AFSHAN A NANJI M.D.

Ophthalmology (Cornea and External Diseases Specialist)

3375 SW TERWILLIGER BLVD
PORTLAND, OR 97239

Multnomah County (503) 494-3000

DR. MARK EDWARD PENNESI MD PHD

Ophthalmology

3375 SW TERWILLIGER BLVD, CEI
PORTLAND, OR 97239

Multnomah County (503) 494-8386

TU LAN NHAT NGUYEN MD

Ophthalmology

3375 SW TERWILLIGER BLVD
PORTLAND, OR 97239

Multnomah County (503) 494-7830

JOHN DANIEL NG MD

Ophthalmology (Ophthalmic Plastic and Reconstructive Surgery)

3375 SW TERWILLIGER BLVD
PORTLAND, OR 97239

Multnomah County (503) 494-3000

DEREK JEN KON LOUIE BS, MS, OD

Optometrist

3375 SW TERWILLIGER BLVD
PORTLAND, OR 97239

Multnomah County (503) 494-3000

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 Winston Chamberlain's NPI number?

The NPI number for Winston Chamberlain is 1710108162. It was assigned to this individual provider in the NPPES registry on May 2, 2007.

Where is Winston Chamberlain located?

Winston Chamberlain practices at 3375 SW Terwilliger Blvd, Portland, OR 97239. The listed phone number is (503) 494-3000.

What is Winston Chamberlain's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Cornea and External Diseases Specialist, with taxonomy code 207WX0120X.

Is Winston Chamberlain enrolled in Medicare?

Yes. Winston Chamberlain 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 Winston Chamberlain accept?

Health plans from Moda Health Plan, Inc. list Winston Chamberlain 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 Winston Chamberlain was last updated on April 9, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.