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DR. KATHRYN A. COLBY M.D.
NPI 1245221282
Ophthalmology in New York, NY

Active since October 31, 2005PECOS EnrolledAccepts Medicare Assignment
84.47/100
CMS Quality Rating
222 E 41ST ST, NEW YORK, NY 10017(212) 263-2574 Get Directions Write a Review

NPPES record last updated: March 11, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 11, 2021, Aug 28, 2019 (2 updates tracked since 2019).

About Dr. Kathryn A. Colby M.d. NPPES

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

DR. KATHRYN A. COLBY M.D. (NPI 1245221282) is an individual ophthalmology provider in New York, New York, licensed in Massachusetts (150411) and active in the NPI registry since October 2005. She is enrolled in Medicare PECOS and is a graduate of Other (1992).

NPPES Registry Identity

NPI1245221282
Entity TypeIndividualFemale
Primary Taxonomy207W00000X
Provider Legal NameDR. KATHRYN A. COLBYCredential: M.D.
Location Address222 E 41ST STNew York, NY 10017-6739
Mailing Address222 E 41st StNew York, NY 10017-6739 · (212) 263-2574
Phone(212) 263-2574
Sole ProprietorNo
Medical School CMSOtherGraduated 1992
Enumeration DateOctober 31, 2005
Last NPPES UpdateMarch 11, 20212 updates tracked since enumeration
NPPES CertifiedMarch 11, 2021
✔ NPI 1245221282 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
License✔ Licensed in MA · 150411
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.
Also ListedOphthalmology · Cornea and External Diseases SpecialistTaxonomy 207WX0120X · License 036.138315 (IL)
222 E 41ST ST, New York, NY 10017
Open in Google Maps ↗

Other Identifiers 1

Medicaid3151590MA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Louisiana, Blue Cross Blue Shield of Wyoming.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. Kathryn A. Colby 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 ID4789756826
PECOS Enrollment IDI20201002002351
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 Reassignment

Medicare enrollment records show Kathryn Colby reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

New York University
1,039 mi
Cardiovascular Disease
3301 QUANTUM BLVD
Boynton Beach, FL 33426
  • Reassigned Medicare billing, New York enrollment
  • 7,712 clinicians in this Medicare group
NPI 1285826438 (877) 648-2964

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 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.

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.
50 services29 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.
28 services19 patients
Imaging of front third of eye using a special microscope 92286
This procedure involves capturing detailed images of the front part of your eye using a specialized microscope. It helps in identifying any eye abnormalities or issues, improving the accuracy of diagnosis and treatment planning.
20 services20 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.
18 services16 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.
13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10017 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
$150.24 typical visit price
range $65.69 – $198.19
Typical copayment $37.56 (range $16.42 – $49.54)
Most-billed visit code 99204
Established Patient
$81.44 typical visit price
range $21.20 – $160.66
Typical copayment $20.36 (range $5.30 – $40.16)
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.

84.47/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality93.33
Promoting Interoperability100
Improvement Activities40
Cost54.91

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.

MRS. CELIA ENGELSON FNP-C
Nurse Practitioner (Family)
222 E 41ST ST
NEW YORK, NY 10017
New York County (212) 263-7744
MATTHEW KATZ M.D.
Urology
222 E 41ST ST
NEW YORK, NY 10017
New York County (646) 825-6300
ANYA FREEDMAN-DOAN
Speech-Language Pathologist
222 E 41ST ST
NEW YORK, NY 10017
New York County (646) 754-1207
CHRISTOPHER JAMES ELDER
Psychiatry & Neurology (Epilepsy)
222 E 41ST ST
NEW YORK, NY 10017
New York County (646) 558-0868
MEGAN MARKLAND NP
Nurse Practitioner (Primary Care)
222 E 41ST ST
NEW YORK, NY 10017
New York County (646) 825-6300
DR. KEVIN M SPIEGLER MD, PHD
Psychiatry & Neurology (Neurology)
222 E 41ST ST
NEW YORK, NY 10017
New York County (212) 263-7744
GEE HYUN CHUN O.D.
Optometrist
222 E 41ST ST
NEW YORK, NY 10017
New York County (212) 263-2573
MS. ALLISON CARMEN ROJAS NP
Nurse Practitioner (Adult Health)
222 E 41ST ST
NEW YORK, NY 10017
New York County (631) 457-0507

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 Kathryn Colby's NPI number?

The NPI number for Kathryn Colby is 1245221282. It was assigned to this individual provider in the NPPES registry on October 31, 2005.

Where is Kathryn Colby located?

Kathryn Colby practices at 222 E 41st St, New York, NY 10017. The listed phone number is (212) 263-2574.

What is Kathryn Colby's specialty?

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

Is Kathryn Colby enrolled in Medicare?

Yes. Kathryn Colby 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 organization bills Medicare for Kathryn Colby's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kathryn Colby reassigns Medicare benefits to New York University (Boynton Beach, FL). The 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 Kathryn Colby's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kathryn Colby accept?

Health plans from Blue Cross Blue Shield of Wyoming and Blue Cross and Blue Shield of Louisiana list Kathryn Colby 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 Kathryn Colby was last updated on March 11, 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.