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Dr. Leah Lynn Kammerdiener , MD

Ophthalmology โ€ข Warwick, RI

Active NPI 1013279496 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

566 Toll Gate Rd
Warwick, RI 028862799

Call 4017384800 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

566 Toll Gate Rd

Warwick, RI 028862799

Telephone 4017384800
Fax 4017385183
Organization at the Same NPPES Address or Phone
Apple Eyewear, Inc Facility NPI 1720296254

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Koch Eye Associates Llp. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

Medical University Of South Carolina College Of Medicine

Graduation Year

2012

Medicare patients

345 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $147,792 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $105,639 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

30-day fills

7,499 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$400,505 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers โ€“ by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $1,434.25 across 48 records.

By nature of payment

  • Food and Beverage: $1,434.25 across 48 records.

Reporting-company totals (3 largest of 7)

  • ABBVIE INC.: $425.71 across 15 records.
  • Alcon Vision LLC: $413.12 across 8 records.
  • Tarsus Pharmaceuticals, Inc.: $197.18 across 10 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

14 years (graduated 2012)

CMS Doctors and Clinicians data list 2012 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2012

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Kammerdiener has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Kammerdiener as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Warwick and Rhode Island

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Close to the middle for clinicians listed under Ophthalmology in Rhode Island (2024, 53 clinicians with data). Median for this group: 1,695. Middle half: 605 to 2,671.

Too few clinicians listed under Ophthalmology in Warwick have Medicare Part B data for 2024 to compare.

Medicare-allowed amount

Close to the middle for clinicians listed under Ophthalmology in Rhode Island (2024, 53 clinicians with data). Median for this group: $164,379. Middle half: $63,263 to $327,740.

Too few clinicians listed under Ophthalmology in Warwick have Medicare Part B data for 2024 to compare.

Paid by Medicare

Close to the middle for clinicians listed under Ophthalmology in Rhode Island (2024, 53 clinicians with data). Median for this group: $114,354. Middle half: $42,917 to $251,636.

Too few clinicians listed under Ophthalmology in Warwick have Medicare Part B data for 2024 to compare.

Medicare Part D prescriptions

More Part D prescriptions than 85% of clinicians listed under Ophthalmology in Rhode Island (2024, 48 clinicians with data). Median for this group: 1,215. Middle half: 415 to 2,421.

Too few clinicians listed under Ophthalmology in Warwick have Medicare Part D data for 2024 to compare.

Part D drug cost

A higher Part D drug cost than 90% of clinicians listed under Ophthalmology in Rhode Island (2024, 48 clinicians with data). Median for this group: $77,349. Middle half: $20,505 to $173,558.

Too few clinicians listed under Ophthalmology in Warwick have Medicare Part D data for 2024 to compare.

18 active clinicians are listed under Ophthalmology with a practice address in Warwick, RI (85 in Rhode Island).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Warwick

0% of these 18 clinicians have the CMS telehealth indicator.

50% of these 18 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): 48 records totaling $1,434.25.

Manufacturer Payment Nature Product Type Amount ($)
Alcon Vision LLC
Food and Beverage
In-kind items and services
UNITY General $147.65
Alcon Vision LLC
Food and Beverage
In-kind items and services
TRYPTYR General $129.04
NEW WORLD MEDICAL,INC.
Food and Beverage
In-kind items and services
Kahook Dual Blade General $126.79
ABBVIE INC.
Food and Beverage
In-kind items and services
XEN GLAUCOMA TREATMENT SYSTEM General $124.71
ABBVIE INC.
Food and Beverage
In-kind items and services
XEN GLAUCOMA TREATMENT SYSTEM General $121.69
Alcon Vision LLC
Food and Beverage
In-kind items and services
TRYPTYR General $36.10
Alcon Vision LLC
Food and Beverage
In-kind items and services
TRYPTYR General $33.70
ABBVIE INC.
Food and Beverage
In-kind items and services
XEN GLAUCOMA TREATMENT SYSTEM General $33.00
Alcon Vision LLC
Food and Beverage
In-kind items and services
TRYPTYR General $31.72
Tarsus Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
XDEMVY General $29.84
Tarsus Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
XDEMVY General $29.48
Sight Sciences, Inc.
Food and Beverage
In-kind items and services
OMNI SURGICAL SYSTEM General $27.01
Sight Sciences, Inc.
Food and Beverage
In-kind items and services
OMNI SURGICAL SYSTEM General $26.87
Thea Pharma Inc.
Food and Beverage
In-kind items and services
IYUZEH General $24.28
Tarsus Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
XDEMVY General $24.09
Alcon Vision LLC
Food and Beverage
In-kind items and services
HYDRUS Microstent General $23.81
Tarsus Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
XDEMVY General $23.59
Tarsus Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
XDEMVY General $22.56
Bausch & Lomb Americas Inc.
Food and Beverage
In-kind items and services
enVista Envy IOL General $22.34
Bausch & Lomb Americas Inc.
Food and Beverage
In-kind items and services
VYZULTA General $20.94
Thea Pharma Inc.
Food and Beverage
In-kind items and services
IYUZEH General $20.90
Sight Sciences, Inc.
Food and Beverage
In-kind items and services
OMNI SURGICAL SYSTEM General $20.54
Tarsus Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
XDEMVY General $20.54
Tarsus Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
XDEMVY General $19.44
ABBVIE INC.
Food and Beverage
In-kind items and services
LUMIGAN General $19.03

(top 25 shown)

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ€“2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2017โ€“2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
462 277 $240.00 $128.90
92133 Imaging of optic nerve
264 241 $108.00 $35.69
92083 Exam of visual field with extended testing
242 217 $145.00 $64.18
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
202 144 $163.00 $90.55
92020 Exam of the internal drainage system of eye
156 151 $60.00 $27.60
92250 Photography of the retina
87 86 $182.00 $36.44
76514 Ultrasound scan of cornea to determine thickness
70 70 $35.00 $10.79
65855 Laser repair to improve eye fluid flow
67 44 $752.00 $245.49
92136 Measurement of corneal curvature and depth of eye
39 19 $264.23 $37.05
92134 Imaging of retina
28 24 $94.00 $39.79
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
25 25 $367.00 $168.12
92025 Ct scan of cornea
19 19 $87.00 $36.38
66821 Removal of recurring cataract in lens capsule using a laser
17 14 $746.00 $316.27
66984 Removal of cataract with insertion of prosthetic lens
17 12 $1440.00 $440.36

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D ยท Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Latanoprost Latanoprost 1,044 74,773 $16,342.52 336
Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat 368 24,409 $9,560.28 112
Timolol Maleate Timolol Maleate 350 26,171 $5,097.53 114
Brimonidine Tartrate Brimonidine Tartrate 348 23,726 $13,180.66 116
Prednisolone Acetate Prednisolone Acetate 335 8,182 $10,630.60 230
Dorzolamide Hcl Dorzolamide Hcl 237 14,419 $6,160.75 78
Lumigan Bimatoprost 162 8,330 $70,368.92 47
Rocklatan Netarsudil Mesylat/Latanoprost 161 8,521 $104,546.90 50
Brimonidine Tartrate-Timolol Brimonidine Tartrate/Timolol 117 6,732 $20,088.53 29
Ofloxacin Ofloxacin 100 1,727 $1,132.42 80
Simbrinza Brinzolamide/Brimonidine Tart 90 4,336 $24,382.12 28
Travoprost Travoprost 60 3,608 $12,438.80 18
Alphagan P Brimonidine Tartrate 59 2,698 $19,522.91 15
Bromfenac Sodium Bromfenac Sodium 57 1,525 $12,728.53 39
Rhopressa Netarsudil Mesylate 38 1,750 $19,235.79 15
Ketorolac Tromethamine Ketorolac Tromethamine 37 964 $791.65 26
Combigan Brimonidine Tartrate/Timolol 25 1,477 $12,029.83 โ€”
Acetazolamide Acetazolamide 24 940 $729.95 โ€”
Dorzolamide-Timolol Dorzolamide/Timolol/Pf 23 945 $3,696.49 โ€”
Restasis Cyclosporine 18 1,320 $27,072.78 โ€”
Prolensa Bromfenac Sodium 17 460 $5,967.83 12
Vyzulta Latanoprostene Bunod 14 371 $4,799.35 โ€”

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2022-10-03
Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

License # reported to NPPES RI MD18779

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.

Ophthalmology

NUCC Taxonomy Code: 207W00000X

License # reported to NPPES SC 34779

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.

Ophthalmology

NUCC Taxonomy Code: 207W00000X

License # reported to NPPES FL ME129068

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.

Surgery

NUCC Taxonomy Code: 208600000X

License # reported to NPPES SC LL 34779

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Rhode Island State Medical Licensing Board.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - OPHTHALMOLOGY

Medicare Enrollment ID

I20221022000052

Enrollment State Jurisdiction

RI

PECOS Control ID

0244539526

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Koch Eye Associates Llp

566 Toll Gate Rd, Warwick, RI 028862716

Phone: 4017384800

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

13 listed
Stephanie Costa , CNP

Nurse Practitioner

NPI 1083101174

Certified Nurse Practitioner

NPI 1871895110

Doctor of Osteopathic Medicine (D.O.)

NPI 1043704794

Doctor of Optometry

NPI 1770879298

Doctor of Medicine (M.D.)

NPI 1457426504

Doctor of Optometry

NPI 1588664379

Doctor of Osteopathic Medicine (D.O.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

10 Historical Events
๐Ÿ“
Updated Practice Location October 03, 2022

Registered at 566 TOLL GATE RD, WARWICK, RI 028862799 (Tel: 4017384800)

๐Ÿ“
Updated Business Mailing Address October 03, 2022

Registered at 51 STATE RD STE 300, DARTMOUTH, MA 027473319 (Tel: 7743203040)

๐Ÿ“
Updated Practice Location October 11, 2019

Registered at 11512 LAKE MEAD AVE UNIT 534, JACKSONVILLE, FL 322565835 (Tel: 9045642020)

๐Ÿ“
Updated Business Mailing Address July 15, 2019

Registered at 11945 SAN JOSE BLVD, STE 300, JACKSONVILLE, FL 322231627 (Tel: 9043961725)

โœ…
NPI Profile Active June 17, 2016

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) June 17, 2016

Registered at 171 ASHLEY AVE, CHARLESTON, SC 294258908 (Tel: 8437921414)

๐Ÿ“
Business Mailing Address (Initial Record) June 17, 2016

Registered at PO BOX 751461, CHARLOTTE, NC 282751461 (Tel: 8437926200)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) June 17, 2016

Recorded as LEAH KAMMERDIENER, M.D.

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) June 17, 2016

Ophthalmology (license number reported to NPPES: SC 34779)

๐ŸŸข
Initial NPI Registration & Enumeration June 12, 2012

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1013279496
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 12, 2012
Last Update: October 03, 2022
Sole Proprietor: No

Other Ophthalmology Specialists in Warwick

All Ophthalmology Specialists in Warwick

More public profiles in Rhode Island

Directory navigation, in NPI number order.

Mailing Address

51 State Rd Ste 300

Dartmouth, MA 027473319

Phone: 7743203040

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.