Dr. Robert Mitchell Thacker , OD
Optometrist • Providence, RI
1466 Broad St
Providence, RI 029052836
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on May 2, 2006; this date does not establish years in practice.
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Published CMS data list 27 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 92014 — Established patient complete exam of visual system: 27 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See the full table · Guide: How to read Medicare Part B data
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Published CMS data list 272 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Cromolyn Sodium — 114 prescription fills, including refills.
- Latanoprost — 56 prescription fills, including refills.
- Azelastine Hcl — 51 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 5 records in the table · Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 85% of clinicians listed under Optometrist in Providence, RI (2024, 35 clinicians with data). Median for this group: 166. Middle half: 89 to 353.
Fewer Medicare Part B services than 95% of clinicians listed under Optometrist in Rhode Island (2024, 167 clinicians with data). Median for this group: 308. Middle half: 134 to 554.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 90 in 2020 to 27 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
1466 Broad St
Providence, RI 029052836
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: George D Bertherman,O.D., Inc.. 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
New England College Of Optometry
1993
What Public CMS Data Show
Optometrist: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
36 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $2,941 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.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
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 – by Provider and Service, 2024.
Paid by Medicare
About $1,430 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
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 – by Provider and Service, 2024.
30-day fills
435 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
$7,250 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
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 – by Provider and Drug, 2024.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $12.86 in 2025
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2025.
Years since graduation
33 years (graduated 1993)
CMS Doctors and Clinicians data list 1993 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished 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
2006
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.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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, “Does your provider accept Medicare as full payment?”
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.
Enrolled in Medicare (PECOS)
Dr. Thacker 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.
Can order Medicare-covered services
CMS lists Dr. Thacker 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.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
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.
Compared with the same specialty in Providence and Rhode Island
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 85% of clinicians listed under Optometrist in Providence, RI (2024, 35 clinicians with data). Median for this group: 166. Middle half: 89 to 353.
Fewer Medicare Part B services than 95% of clinicians listed under Optometrist in Rhode Island (2024, 167 clinicians with data). Median for this group: 308. Middle half: 134 to 554.
Medicare-allowed amount
A lower Medicare-allowed amount than 85% of clinicians listed under Optometrist in Providence, RI (2024, 35 clinicians with data). Median for this group: $16,981. Middle half: $8,995 to $29,304.
A lower Medicare-allowed amount than 90% of clinicians listed under Optometrist in Rhode Island (2024, 167 clinicians with data). Median for this group: $27,297. Middle half: $12,908 to $48,306.
Paid by Medicare
A lower Medicare payment amount than 85% of clinicians listed under Optometrist in Providence, RI (2024, 35 clinicians with data). Median for this group: $11,812. Middle half: $6,089 to $19,588.
A lower Medicare payment amount than 95% of clinicians listed under Optometrist in Rhode Island (2024, 167 clinicians with data). Median for this group: $18,435. Middle half: $8,511 to $32,346.
Medicare Part D prescriptions
More Part D prescriptions than 65% of clinicians listed under Optometrist in Providence, RI (2024, 37 clinicians with data). Median for this group: 138. Middle half: 51 to 331.
More Part D prescriptions than 60% of clinicians listed under Optometrist in Rhode Island (2024, 167 clinicians with data). Median for this group: 183. Middle half: 70 to 375.
Part D drug cost
Close to the middle for clinicians listed under Optometrist in Providence, RI (2024, 37 clinicians with data). Median for this group: $7,250. Middle half: $936 to $22,307.
A lower Part D drug cost than 60% of clinicians listed under Optometrist in Rhode Island (2024, 167 clinicians with data). Median for this group: $11,802. Middle half: $1,686 to $34,512.
64 active clinicians are listed under Optometrist with a practice address in Providence, RI (267 in Rhode Island).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Providence
0% of these 64 clinicians have the CMS telehealth indicator.
71.9% of these 64 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 70% from 90 in 2020 to 27 in 2024.
- 2020: 90
- 2021: 134
- 2022: 83
- 2023: 81
- 2024: 27
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Medicare-allowed amount
Medicare-allowed amount decreased 59% from $7,120 in 2020 to $2,941 in 2024.
- 2020: $7,120
- 2021: $11,142
- 2022: $7,136
- 2023: $6,912
- 2024: $2,941
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Paid by Medicare
Paid by Medicare decreased 71% from $4,984 in 2020 to $1,430 in 2024.
- 2020: $4,984
- 2021: $6,666
- 2022: $4,319
- 2023: $4,449
- 2024: $1,430
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 93% from 141 in 2020 to 272 in 2024.
- 2020: 141
- 2021: 174
- 2022: 149
- 2023: 171
- 2024: 272
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30-day fills
30-day fills increased 117% from 201 in 2020 to 435 in 2024.
- 2020: 201
- 2021: 227
- 2022: 222
- 2023: 283
- 2024: 435
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Part D drug cost
Part D drug cost increased 111% from $3,436 in 2020 to $7,250 in 2024.
- 2020: $3,436
- 2021: $5,053
- 2022: $3,120
- 2023: $5,271
- 2024: $7,250
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $47.30 in 2022 to $12.86 in 2025.
- 2022: $47.30
- 2025: $12.86
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 · 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
Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $12.86.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| LKC Technologies, Inc. |
Food and Beverage
In-kind items and services
|
— | General | $12.86 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 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 – by Provider and Service data, 2017–2024; 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 |
|---|---|---|---|---|
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92014
Established patient complete exam of visual system
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27 | 27 | $110.00 | $108.92 |
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.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Cromolyn Sodium | Cromolyn Sodium | 114 | 5,568 | $3,134.44 | 63 |
| Latanoprost | Latanoprost | 56 | 2,855 | $682.29 | 24 |
| Azelastine Hcl | Azelastine Hcl | 51 | 2,446 | $2,821.37 | 18 |
| Neomycin-Polymyxin-Dexameth | Neomycin/Polymyxin B/Dexametha | 39 | 688 | $474.23 | 35 |
| Dorzolamide-Timolol | Dorzolamide Hcl/Timolol Maleat | 12 | 568 | $137.81 | — |
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
NUCC Taxonomy Code: 152W00000X
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - OPTOMETRY
I20100503000021
RI
5496883001
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
George D Bertherman,o.d., Inc.
1466 Broad St, Providence, RI 029052836
Phone: 4019416221
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Optometrist
Doctor of Optometry
Optometrist
Doctor of Optometry
Career & Practice History
NPI enumerated May 02, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Optometrists in Providence
- Dr. Sara Hafeez, OD
- Dr. Heidi Young, OD
- Dr. Abdoulaye Wann, OD
- Dr. Lori Boivin, OD
- Dr. Alexandra O'donnell, OD
- Dr. Jennifer Hsiao-Fang-Yen, OD
More public profiles in Rhode Island
Directory navigation, in NPI number order.
- Paul Roque, DDS Dentist - General Practice · Pawtucket
- Richard Miller, MD Psychiatry & Neurology - Psychiatry · Cranston
- Alison Hayward, MD Emergency Medicine · Providence
- David Stanford, MSW, LICSW, LCDP II Social Worker - Clinical · Providence
- Kate Cahill, MD Internal Medicine · Providence
- Alex Gerber, DO Ophthalmology · Middletown
- Jeffery Cunningham, MD Internal Medicine · Riverside
- Petra Klinge, MD Neurological Surgery · Providence
- Kendra Frank Physical Therapist · Cranston
- Michelle Choquette, OTR, L Occupational Therapist - Hand · East Providence
- Sean Fine, MD Internal Medicine - Gastroenterology · Riverside
- Timothy Poore, MD Internal Medicine - Hospice and Palliative Medicine · Providence
Mailing Address
506 Fish Hill Rd
West Greenwich, RI 028172209