DR. PETER YUWEI CHANG M.D.
NPI 1801107859
Ophthalmology in Waltham, MA

Q: What is Peter Chang's NPI number?

The NPI number for Peter Chang is 1801107859. It was assigned to this individual provider in the NPPES registry on June 24, 2010.

Q: What is Peter Chang'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 Peter Chang was last updated on September 25, 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.

Active since June 24, 2010PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

1440 MAIN ST, STE 201, WALTHAM, MA 02451(781) 891-6377(781) 647-1430 Get Directions Write a Review

NPPES record last updated: September 25, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 25, 2018, Aug 15, 2016 (2 updates tracked since 2016).

On this page

About Dr. Peter Yuwei Chang M.d. NPPES

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

DR. PETER YUWEI CHANG M.D. (NPI 1801107859) is an individual ophthalmology provider in Waltham, Massachusetts, licensed in Massachusetts (266201) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS, is affiliated with Massachusetts Eye And Ear Infirmary -, and maintains a secondary practice location in Boston.

NPPES Registry Identity

NPI1801107859

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameDR. PETER YUWEI CHANGCredential: M.D.

Location Address1440 MAIN ST, STE 201Waltham, MA 02451-1640

Mailing Address1440 Main St, Ste 201Waltham, MA 02451-1640 · (781) 891-6377 · Fax (781) 647-1430

Phone(781) 891-6377

Fax(781) 647-1430

Sole ProprietorYes

Medical School CMSTufts University School Of MedicineGraduated 2008

Enumeration DateJune 24, 2010

Last NPPES UpdateSeptember 25, 20182 updates tracked since enumeration

✔ NPI 1801107859 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in MA · 266201

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.

1440 MAIN ST, Waltham, MA 02451

Open in Google Maps ↗

Secondary Practice Location 1

Location 110 Hawthorne Pl Ste 106Boston, MA 02114-2336 · Phone (617) 523-0955 · Fax (617) 523-5376

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Peter Yuwei Chang 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 ID2466621925

PECOS Enrollment IDI20160927000047

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.

Medicare Billing Reassignments

Medicare enrollment records show Peter Chang reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Massachusetts Eye Research And Surgery Institution, PC

Same address

Ophthalmology

1440 MAIN STREET, SUITE 201
Waltham, MA 02451

Reassigned Medicare billing, Massachusetts enrollment
7 clinicians in this Medicare group

NPI 1639230527 (781) 891-6377

Andover Eye Associates, Inc

22 mi

Ophthalmology

138 HAVERHILL ST, SUITE 104
Andover, MA 01810

Reassigned Medicare billing, Massachusetts enrollment
18 clinicians in this Medicare group

NPI 1588678551 (978) 475-0705

Retina Consultants Of Worcester PC

28 mi

Ophthalmology

63 LINCOLN ST
Worcester, MA 01605

Reassigned Medicare billing, Massachusetts enrollment
5 clinicians in this Medicare group

NPI 1144397498 (508) 791-1217

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 47

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.

Injection, faricimab-svoa, 0.1 mg J2777

Faricimab-svoa is a medication given through an injection into the eye to treat certain eye conditions. The 0.1 mg dosage helps control disease progression, improving vision and eye health. The procedure is done by a healthcare professional.

12,180 services51 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.

1,382 services704 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.

1,216 services679 patients

Injection of drug into eye 67028

An injection into the eye is a procedure where a medication is delivered directly into your eye to treat various conditions. A local anesthetic is applied to numb the eye, ensuring minimal discomfort. The drug helps manage diseases like macular degeneration or diabetic retinopathy.

670 services185 patients

Injection, triamcinolone acetonide (xipere), 1 mg J3299

Triamcinolone acetonide (Xipere) is a medication given by injection to treat inflammation and related conditions. It works by reducing your body's immune response to these conditions, easing symptoms like swelling and pain.

508 services13 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.

289 services122 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.

266 services216 patients

Injection, aflibercept, 1 mg J0178

Aflibercept injection is a treatment for certain eye conditions that affect vision. It works by blocking abnormal blood vessel growth and leakage in the eye, which can cause vision loss. The medication is administered directly into the eye by a healthcare professional.

262 services58 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.

217 services111 patients

Blood creatinine level 82565

A blood creatinine level test measures the amount of creatinine in your blood. Creatinine is a waste product that your body produces when it uses energy. High levels may indicate that your kidneys aren't working properly. This test is often used to monitor kidney health.

205 services64 patients

Liver enzyme (sgot), level 84450

A Liver Enzyme (SGOT) Level test is a simple blood test used to measure the amount of certain enzymes in your blood. These enzymes are normally found in liver cells. If the liver is damaged or diseased, these enzymes can leak into your bloodstream, indicating potential liver issues.

205 services64 patients

Liver enzyme (sgpt), level 84460

A liver enzyme (SGPT) level test is a blood test that checks the health of your liver. SGPT is an enzyme found in your liver cells. If your liver is damaged or inflamed, SGPT can leak into your bloodstream, raising the enzyme level. This test helps identify liver diseases early.

205 services64 patients

Urea nitrogen level to assess kidney function, quantitative 84520

The urea nitrogen level test is a routine blood test that checks the amount of urea nitrogen in your blood to evaluate how well your kidneys are working. If the levels are higher than normal, it may indicate that your kidneys are not functioning properly.

205 services64 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

205 services64 patients

Blood glucose (sugar) level 82947

A blood glucose level test measures the amount of sugar in your blood. It's often used to monitor and manage conditions like diabetes. High or low levels can indicate a health issue. The test is usually done by pricking your finger for a small blood sample.

204 services64 patients

Glutamyltransferase (liver enzyme) level 82977

Glutamyltransferase (GGT) level is a blood test that helps check your liver's health. High GGT levels may indicate liver disease or damage. The test involves a simple blood draw and results help your doctor understand your liver's condition better.

204 services64 patients

Administration of chemotherapy into vein, each additional hour 96415

Chemotherapy is a treatment method that uses drugs to destroy cancer cells. The drugs are administered into a vein, usually in the arm. Each additional hour of chemotherapy allows for more of the medication to enter your bloodstream to fight against the cancer cells.

202 services16 patients

New patient complete exam of visual system 92004

A new patient complete exam of the visual system is a thorough evaluation of your eyes and vision. It checks for any potential issues and assesses overall eye health. It includes tests for visual acuity, eye movement, and light response.

199 services199 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

179 services56 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.

173 services110 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.

121 services107 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).

98 services84 patients

Administration of chemotherapy into vein, 1 hour or less 96413

Chemotherapy is a treatment that uses drugs to destroy cancer cells. When administered into a vein, it's often through an IV. This procedure usually lasts 1 hour or less. You may feel a slight pinch as the needle is inserted, but it's generally painless.

93 services18 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.

85 services73 patients

Antibody evaluation, each additional single antibody stain procedure 88350

An antibody evaluation involves testing a sample of your body fluid (like blood) to identify specific antibodies. Each additional single antibody stain procedure is a separate test for another specific antibody. This helps in diagnosing various health conditions by understanding your body's immune response.

80 services15 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.

74 services66 patients

Special stained specimen slides to examine tissue, each additional procedure 88341

Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.

70 services13 patients

Exam of retinal blood vessels using a special camera after injection of a dye 92235

This procedure, known as a fluorescein angiography, involves taking images of the back of your eye. A dye is injected into your arm that travels to your eye, highlighting the blood vessels in your retina. This helps identify any abnormalities.

66 services57 patients

Infusion, normal saline solution, sterile (500 ml = 1 unit) J7040

An infusion of a normal saline solution is a common medical procedure. Sterile saline (salt water) is administered into your bloodstream via a drip. This helps to maintain fluid balance in your body, especially when you're unable to drink enough liquids.

59 services11 patients

Unclassified drugs J3490

Unclassified drugs are medications that don't fit into an existing category or class due to their unique properties or uses. They may be used for various conditions and their effects may differ widely. Always ask your healthcare provider for more information about these drugs.

53 services32 patients

Insertion of drug delivery implant into tear duct of eye 68841

This procedure involves placing a small implant into your tear duct. The implant slowly releases medication to your eye, helping manage conditions like dry eyes or glaucoma. It's a simple, quick procedure typically performed under local anesthesia.

47 services41 patients

Injection, bevacizumab, 10 mg J9035

Bevacizumab is a medication given through an injection. It's designed to prevent the growth of new blood vessels that cancer cells need to grow and spread. The 10 mg dose refers to the amount of the drug in the injection.

44 services20 patients

Extended exam of the back part of the eye with optic nerve drawing 92202

This procedure involves a detailed examination of the back part of your eye, focusing on the optic nerve, a crucial component for vision. A drawing or map of the optic nerve is created to help track any changes over time. This can help detect eye diseases early.

32 services32 patients

Removal of eyelashes using forceps 67820

The removal of eyelashes using forceps is a simple procedure where a medical professional gently extracts unwanted or problematic eyelashes with a specialized tool. This is often done to alleviate discomfort or to treat conditions like trichiasis, where eyelashes grow inward.

31 services20 patients

Removal of eye fluid (vitreous) between lens and retina 67036

This procedure, known as a vitrectomy, involves removing some or all of the vitreous humor, the clear gel-like substance in the eye. It's done to treat various eye conditions, like retinal detachment or macular hole. The aim is to improve or stabilize vision. It's performed under local or general anesthesia.

27 services26 patients

2d ultrasound scan of eye tissue and structures 76512

A 2D ultrasound scan of eye tissue and structures is a non-invasive procedure that uses sound waves to create images of your eye. It helps doctors to examine your eye's internal structures, detect abnormalities, and plan for treatments if needed.

23 services22 patients

Measurement of retinal and optic nerve function 92273

This procedure checks the health of your eyes, specifically the retina and optic nerve. These parts help in visual interpretation. The test involves non-invasive techniques to measure your eye's response to light and assess its functioning.

21 services17 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.

21 services20 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.

21 services20 patients

Removal of membrane of retina 67041

Removal of the retina's membrane is a surgical procedure aimed at treating eye conditions affecting the retina's function. It involves a delicate operation to eliminate scar tissue or membranes causing vision problems. The procedure can help improve or stabilize vision.

19 services18 patients

Extended exam of the back part of the eye with retinal drawing 92201

This procedure involves a detailed examination of the back part of your eye, including the retina. It helps identify any abnormalities or issues. A retinal drawing is made to record findings. It's non-invasive and crucial for maintaining eye health.

18 services16 patients

Antibody evaluation, initial single antibody stain procedure 88346

An antibody evaluation, initial single antibody stain procedure is a laboratory test. It's designed to identify specific proteins, or antibodies, in your body. This can help diagnose certain conditions or monitor your immune system's response to treatments. The procedure involves staining a single type of antibody for detection.

16 services15 patients

Complex removal of cataract with insertion of prosthetic lens 66982

This procedure involves removing a cloudy lens (cataract) from your eye and replacing it with a clear, artificial lens. It helps restore vision that has been affected by the cataract. The operation is usually done under local anesthesia.

15 services11 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.

14 services14 patients

Special stained specimen slides to examine tissue, initial procedure 88342

This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.

14 services13 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.

14 services14 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.

11 services11 patients

Hospital Affiliations CMS Care Compare

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

Massachusetts Eye And Ear Infirmary -

Acute Care Hospitals · Boston, MA

OwnershipVoluntary non-profit - Private

CMS Certification Number220075

Location243 Charles StreetBoston, MA 02114 · Suffolk County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02451 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

$144.11 typical visit price

range $63.72 – $189.86

Typical copayment $36.02 (range $15.93 – $47.46)

Most-billed visit code 99204

Established Patient

$78.84 typical visit price

range $21.07 – $155.29

Typical copayment $19.71 (range $5.26 – $38.82)

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.

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.

100/100

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

Scored as part of a group practice

Quality

100

Improvement Activities

Other Providers at the Same Location NPPES 8

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

MARCO LOI CRNA

Nurse Anesthetist, Certified Registered

1440 MAIN ST
WALTHAM, MA 02451

Middlesex County (781) 891-9300

MURAT A AVADIKOGLU M.D.

Anesthesiology

1440 MAIN ST, SURGISITE BOSTON
WALTHAM, MA 02451

Middlesex County (781) 891-9300

KARAPET GUYUMDZHYAN CRNA

Nurse Anesthetist, Certified Registered

1440 MAIN ST
WALTHAM, MA 02451

Middlesex County (781) 891-9300

D & G ASSOCIATES WALTHAM, INC.

Anesthesiology

1440 MAIN ST
WALTHAM, MA 02451

Middlesex County (781) 891-9300

WEST SUBURBAN EYE SURGERY CENTER LLC

Clinic/Center (Ophthalmologic Surgery)

1440 MAIN ST
WALTHAM, MA 02451

Middlesex County (781) 891-9300

OUTPATIENT MANAGEMENT PHYSICIAN SVC BOSTON LLC

Anesthesiology

1440 MAIN ST
WALTHAM, MA 02451

Middlesex County (914) 725-8855

JJM MEDICAL SERVICES, PC

Anesthesiology

1440 MAIN ST
WALTHAM, MA 02451

Middlesex County (781) 891-9300

JENNIFER L SMITH CRNA

Nurse Anesthetist, Certified Registered

1440 MAIN ST
WALTHAM, MA 02451

Middlesex County (781) 891-9300

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 Peter Chang's NPI number?

The NPI number for Peter Chang is 1801107859. It was assigned to this individual provider in the NPPES registry on June 24, 2010.

Where is Peter Chang located?

Peter Chang practices at 1440 Main St Ste 201, Waltham, MA 02451. The listed phone number is (781) 891-6377.

What is Peter Chang's specialty?

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

Is Peter Chang enrolled in Medicare?

Yes. Peter Chang 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.

Which organizations bill Medicare for Peter Chang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Peter Chang reassigns Medicare benefits to 3 organizations: Massachusetts Eye Research And Surgery Institution, PC (Waltham, MA), Andover Eye Associates, Inc (Andover, MA) and Retina Consultants Of Worcester PC (Worcester, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Peter Chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Peter Chang accept?

Health plans from Anthem Blue Cross and Blue Shield list Peter Chang 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 Peter Chang affiliated with any hospitals?

According to CMS data, Peter Chang is affiliated with Massachusetts Eye And Ear Infirmary -.

When was this NPI record last updated?

The NPPES record for Peter Chang was last updated on September 25, 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.