Dr. Gerald W. Glaser , OD
Optometrist • Warwick, RI
400 Bald Hill Rd, Suite 163
Warwick, RI 028861617
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
NPI assigned on April 20, 2007; this date does not establish years in practice.
-
Published CMS data list 2,865 Original Medicare Part B services in 2019.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2019. Published rows only; this is not a quality measure.
-
Published Part B service records, 2019:
- 66984 — Removal of cataract with insertion of prosthetic lens: 2,024 service units.
- 92014 — Established patient complete exam of visual system: 251 service units.
- 92250 — Photography of the retina: 150 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2019. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2018 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2019). CPT notice
See all 10 records in the table · Guide: How to read Medicare Part B data
-
Published CMS data list 11 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.
-
Published Part D records, 2024:
- Tobramycin-Dexamethasone (Tobramycin/Dexamethasone) — 11 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 the full table · Guide: How to read Medicare Part D prescriber data
-
Fewer Part D prescriptions than 95% of clinicians listed under Optometrist in Warwick, RI (2024, 29 clinicians with data). Median for this group: 184. Middle half: 72 to 286.
Fewer Part D prescriptions than 95% of clinicians listed under Optometrist in Rhode Island (2024, 167 clinicians with data). Median for this group: 183. Middle half: 70 to 375.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
-
Medicare Part B services went from 784 in 2017 to 2,865 in 2019.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017–2019.
Practice Location & Contact Primary Location
400 Bald Hill Rd
Suite 163
Warwick, RI 028861617
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Optometrist: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $72,438 in 2019
The total amount Medicare approved for these services in 2019. 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, 2019.
Paid by Medicare
About $51,446 in 2019
The part of the Medicare-allowed amount that Medicare itself paid in 2019, 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, 2019.
30-day fills
11 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
$601 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 $11.84 in 2021
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 2021.
NPI first issued
2007
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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.
Compared with the same specialty in Warwick and Rhode Island
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Fewer Part D prescriptions than 95% of clinicians listed under Optometrist in Warwick, RI (2024, 29 clinicians with data). Median for this group: 184. Middle half: 72 to 286.
Fewer Part D prescriptions than 95% 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
A lower Part D drug cost than 85% of clinicians listed under Optometrist in Warwick, RI (2024, 29 clinicians with data). Median for this group: $16,402. Middle half: $2,055 to $32,760.
A lower Part D drug cost than 85% 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.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Glaser are from 2019.
41 active clinicians are listed under Optometrist with a practice address in Warwick, RI (267 in Rhode Island).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Warwick
0% of these 41 clinicians have the CMS telehealth indicator.
68.3% of these 41 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.
-
Medicare Part B services
Medicare Part B services increased 265% from 784 in 2017 to 2,865 in 2019.
- 2017: 784
- 2018: 527
- 2019: 2,865
-
Medicare-allowed amount
Medicare-allowed amount increased 14% from $63,654 in 2017 to $72,438 in 2019.
- 2017: $63,654
- 2018: $48,431
- 2019: $72,438
-
Paid by Medicare
Paid by Medicare increased 26% from $40,691 in 2017 to $51,446 in 2019.
- 2017: $40,691
- 2018: $32,050
- 2019: $51,446
-
Medicare Part D prescriptions
Medicare Part D prescriptions went from 16 in 2022 to 11 in 2024.
- 2022: 16
- 2023: 16
- 2024: 11
-
30-day fills
30-day fills went from 16 in 2022 to 11 in 2024.
- 2022: 16
- 2023: 16
- 2024: 11
-
Part D drug cost
Part D drug cost decreased 51% from $1,217 in 2022 to $601 in 2024.
- 2022: $1,217
- 2023: $961
- 2024: $601
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $153.20 in 2019 to $11.84 in 2021.
- 2019: $153.20
- 2020: $27.37
- 2021: $11.84
Sources: CMS Medicare Physician & Other Practitioners (2019), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2021), 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 2021 (payments made January 1 – December 31, 2021): fewer than 11 records totaling $11.84.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Johnson & Johnson Vision Care, Inc. |
Food and Beverage
In-kind items and services
|
Acuvue | General | $11.84 |
Source: CMS Open Payments, program year 2021, 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 2016–2018 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, 2017–2019; 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 |
|---|---|---|---|---|
|
66984
Removal of cataract with insertion of prosthetic lens
|
2,024 | 14 | $35.44 | $1.44 |
|
92014
Established patient complete exam of visual system
|
251 | 250 | $150.00 | $128.36 |
|
92250
Photography of the retina
|
150 | 147 | $714.33 | $51.22 |
|
92081
Exam of visual field with limited testing
|
147 | 145 | $65.00 | $30.84 |
|
99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
123 | 96 | $125.00 | $74.66 |
|
92004
New patient complete exam of visual system
|
46 | 46 | $175.00 | $153.32 |
|
99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
|
45 | 45 | $115.00 | $108.83 |
|
92083
Exam of visual field with extended testing
|
38 | 33 | $121.84 | $64.74 |
|
92133
Imaging of optic nerve
|
28 | 26 | $100.00 | $34.75 |
|
92134
Imaging of retina
|
13 | 13 | $100.00 | $40.16 |
Source: CMS Part B by Provider and Service, 2019; 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 |
|---|---|---|---|---|---|
| Tobramycin-Dexamethasone | Tobramycin/Dexamethasone | 11 | 158 | $600.86 | — |
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.
Additional State Medicaid & Healthcare Payer Identifiers
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
Optometrist
Doctor of Optometry
Career & Practice History
NPI enumerated April 20, 2007.
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 Warwick
- Dr. Lisa De Giulio, OD
- Dr. Earle Scharff, OD
- Dr. Richard Belhumeur, OD
- Sara Youssef
- Dr. Pamela Blodgett, OD
- Dr. Jeffrey Ainley, OD
Mailing Address
400 Bald Hill Rd, Suite 163
Warwick, RI 028861617
Phone: 4017389866