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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JAMES M WEISZ M.D.
NPI 1639144967
Ophthalmology in New Haven, CT

Active since February 21, 2006PECOS Enrolled
100/100
CMS Quality Rating
46 PRINCE ST, NEW HAVEN, CT 06519(203) 365-6565(203) 365-6567 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 13, 2026, Sep 8, 2023 (2 updates tracked since 2023).

About Dr. James M Weisz M.d. NPPES

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

DR. JAMES M WEISZ M.D. (NPI 1639144967) is an individual ophthalmology provider in New Haven, Connecticut, licensed in Connecticut (036730) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of Columbia University College Of Physicians And Surgeons (1991).

NPPES Registry Identity

NPI1639144967
Entity TypeIndividualMale
Primary Taxonomy207W00000X
Provider Legal NameDR. JAMES M WEISZCredential: M.D.
Location Address46 PRINCE STNew Haven, CT 06519-1600
Mailing Address46 Prince StNew Haven, CT 06519-1600 · (203) 365-6565 · Fax (203) 365-6567
Phone(203) 365-6565
Fax(203) 365-6567
Sole ProprietorNo
Medical School CMSColumbia University College Of Physicians And SurgeonsGraduated 1991
Enumeration DateFebruary 21, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 8, 2023
✔ NPI 1639144967 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
License✔ Licensed in CT · 036730
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.
46 PRINCE ST, New Haven, CT 06519
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Other Identifiers 1

Medicaid001367300CT

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. James M Weisz 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 ID3577520634
PECOS Enrollment IDI20041210000394
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 11

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.
18,600 services61 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.
1,329 services480 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.
745 services184 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.
592 services68 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.
462 services173 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.
284 services231 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06519 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
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$75.55 typical visit price
range $19.76 – $149.26
Typical copayment $18.88 (range $4.94 – $37.31)
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
Quality100
Improvement Activities40

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.

KRISTIN NOWAK
Advanced Practice Midwife
46 PRINCE ST, #207
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 787-2264
DR. WAYNE IAN LARRISON M.D.
Ophthalmology
46 PRINCE ST, SUITE 402A
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 787-6161
JOAN M MESSNER CNM
Advanced Practice Midwife
46 PRINCE ST, #207
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 787-2264
DR. VINCENT QUARATO D.C.
Chiropractor
46 PRINCE ST, SUITE 201
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 562-0656
DIANE LEVINE PT
Physical Therapist
46 PRINCE ST, SUITE 402B
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 752-7878
SHIRLEY MUDZINSKI PT
Physical Therapist
46 PRINCE ST, SUITE 402B
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 752-7878
ROBERT F MORRISON M.D.
Internal Medicine (Cardiovascular Disease)
46 PRINCE ST
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 867-5300
AJOY KAPOOR M.D.
Internal Medicine (Cardiovascular Disease)
46 PRINCE ST
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 867-5300

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 James Weisz's NPI number?

The NPI number for James Weisz is 1639144967. It was assigned to this individual provider in the NPPES registry on February 21, 2006.

Where is James Weisz located?

James Weisz practices at 46 Prince St, New Haven, CT 06519. The listed phone number is (203) 365-6565.

What is James Weisz's specialty?

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

Is James Weisz enrolled in Medicare?

Yes. James Weisz 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.

When was this NPI record last updated?

The NPPES record for James Weisz was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days 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.