Dr. Robert Alan Ring , OD
Optometrist • Oceanside, CA
3998 Vista Way
Oceanside, CA 920564500
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 November 3, 2006; this date does not establish years in practice.
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Published CMS data list 41 Original Medicare Part B services in 2023.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023. Published rows only; this is not a quality measure.
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Published Part B service records, 2023:
- 92014 — Established patient complete exam of visual system: 41 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2022 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2023). CPT notice
See the full table · Guide: How to read Medicare Part B data
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Published CMS data list 13 Medicare Part D prescriptions, including refills, in 2015.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2015. Published rows only; this is not a quality measure.
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Published Part D records, 2015:
- Erythromycin (Erythromycin Base) — 13 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2015. 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
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Medicare Part B services went from 47 in 2019 to 41 in 2023.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2019–2023.
Practice Location & Contact Primary Location
3998 Vista Way
Oceanside, CA 920564500
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 $4,699 in 2023
The total amount Medicare approved for these services in 2023. 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, 2023.
Paid by Medicare
About $2,771 in 2023
The part of the Medicare-allowed amount that Medicare itself paid in 2023, 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, 2023.
30-day fills
13 standardized 30-day fills in 2015
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
$132 in 2015
The total cost of these prescriptions in 2015, 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, 2015.
Open Payments general payments, program year 2025
All general payments: $85.16 across 3 records.
By nature of payment
- Food and Beverage: $85.16 across 3 records.
Reporting-company totals
- Regeneron Pharmaceuticals, Inc.: $34.70 across 1 record.
- Harrow Eye, LLC: $30.77 across 1 record.
- Bausch & Lomb Americas Inc.: $19.69 across 1 record.
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.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
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.
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.
Enrolled in Medicare (PECOS)
Dr. Ring 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. Ring 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 Oceanside and California
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Ring are from 2023.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Ring are from 2015.
18 active clinicians are listed under Optometrist with a practice address in Oceanside, CA (8,312 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Oceanside
0% of these 18 clinicians have the CMS telehealth indicator.
38.9% of these 18 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 13% from 47 in 2019 to 41 in 2023.
- 2019: 47
- 2020: 44
- 2021: 50
- 2022: 40
- 2023: 41
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Medicare-allowed amount
Medicare-allowed amount decreased 12% from $5,337 in 2019 to $4,699 in 2023.
- 2019: $5,337
- 2020: $5,078
- 2021: $5,950
- 2022: $4,572
- 2023: $4,699
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Paid by Medicare
Paid by Medicare decreased 16% from $3,315 in 2019 to $2,771 in 2023.
- 2019: $3,315
- 2020: $3,199
- 2021: $3,944
- 2022: $2,519
- 2023: $2,771
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Medicare Part D prescriptions
CMS data for Part D prescriptions are available for 2015 only.
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30-day fills
CMS data for 30-day fills are available for 2015 only.
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Part D drug cost
CMS data for Part D drug cost are available for 2015 only.
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $36.64 in 2020 to $85.16 in 2025.
- 2020: $36.64
- 2021: $17.59
- 2023: $4,459.69
- 2024: $215.33
- 2025: $85.16
Sources: CMS Medicare Physician & Other Practitioners (2023), CMS Medicare Part D Prescribers (2015), 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 $85.16.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Regeneron Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
EYLEA HD | General | $34.70 |
| Harrow Eye, LLC |
Food and Beverage
In-kind items and services
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TRIESENCE | General | $30.77 |
| Bausch & Lomb Americas Inc. |
Food and Beverage
In-kind items and services
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MIEBO | General | $19.69 |
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 2016–2022 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, 2017–2023; 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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41 | 41 | $115.98 | $114.60 |
Source: CMS Part B by Provider and Service, 2023; 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 2015.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Erythromycin | Erythromycin Base | 13 | 160 | $132.41 | — |
Source: CMS Part D by Provider and Drug, 2015; 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
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - OPTOMETRY
I20110310000456
CA
4183746720
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Surgery - Vascular Surgery
Doctor of Medicine (M.D.)
Surgery
Doctor of Medicine (M.D.)
Surgery - Vascular Surgery
DOFACS
Dentist - General Practice
Doctor of Dental Surgery
Physician Assistant - Medical
Physician Assistant (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 3998 VISTA WAY, OCEANSIDE, CA 920564500 (Tel: 7607269383)
Registered at 3998 VISTA WAY, OCEANSIDE, CA 920564500 (Tel: 7607269383)
Optometrist (license number reported to NPPES: CA 6781TLG)
NPI status registered as active in NPPES database
Registered at 3231 WARING CRT, ST B, OCEANSIDE, CA 92056 (Tel: 7607269383)
Registered at 3231 WARING CRT, ST B, OCEANSIDE, CA 92056 (Tel: 7607269383)
Recorded as ROBERT RING, O.D.
Optometrist (license number reported to NPPES: CA 6781T)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Optometrists in Oceanside
- Dr. Ashley Butler, OD
- Dr. David Sherman, OD
- Dr. Michael Long, OD
- Dr. Adam Rosa, OD
- Dr. Rachel Niskanen, OD
- Dr. Michael Morgan, OD
Mailing Address
3998 Vista Way
Oceanside, CA 920564500
Phone: 7607269383