Dr. Robert Richard Wresch , MD
Ophthalmology • Tamuning, GU
388 Ypao Rd
Tamuning, GU 969133701
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 15, 2006; this date does not establish years in practice.
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Published CMS data list 483 Original Medicare Part B services in 2022.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2022. Published rows only; this is not a quality measure.
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Published Part B service records, 2022:
- 92012 — Established patient problem focused exam of visual system: 168 service units.
- 92014 — Established patient complete exam of visual system: 165 service units.
- 92133 — Imaging of optic nerve: 75 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2022. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2021 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2022). CPT notice
See all 5 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 331 Medicare Part D prescriptions, including refills, in 2022.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2022. Published rows only; this is not a quality measure.
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Published Part D records, 2022:
- Latanoprost — 116 prescription fills, including refills.
- Brimonidine Tartrate — 69 prescription fills, including refills.
- Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) — 64 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2022. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 6 records in the table · Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 1,540 in 2018 to 483 in 2022.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2018–2022.
Practice Location & Contact Primary Location
388 Ypao Rd
Tamuning, GU 969133701
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
Ophthalmology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $46,099 in 2022
The total amount Medicare approved for these services in 2022. 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, 2022.
Paid by Medicare
About $23,096 in 2022
The part of the Medicare-allowed amount that Medicare itself paid in 2022, 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, 2022.
30-day fills
369 standardized 30-day fills in 2022
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
$11,500 in 2022
The total cost of these prescriptions in 2022, 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, 2022.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019–2025.
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. Wresch 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. Wresch 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 Tamuning and Guam
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Wresch are from 2022.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Wresch are from 2022.
6 active clinicians are listed under Ophthalmology with a practice address in Tamuning, GU (7 in Guam).
Addresses are self-reported to NPPES and may be out of date.
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 69% from 1,540 in 2018 to 483 in 2022.
- 2018: 1,540
- 2019: 1,299
- 2020: 644
- 2021: 1,043
- 2022: 483
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Medicare-allowed amount
Medicare-allowed amount decreased 69% from $149,943 in 2018 to $46,099 in 2022.
- 2018: $149,943
- 2019: $129,945
- 2020: $63,778
- 2021: $108,116
- 2022: $46,099
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Paid by Medicare
Paid by Medicare decreased 78% from $102,652 in 2018 to $23,096 in 2022.
- 2018: $102,652
- 2019: $87,906
- 2020: $40,190
- 2021: $75,649
- 2022: $23,096
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 37% from 528 in 2018 to 331 in 2022.
- 2018: 528
- 2019: 484
- 2020: 362
- 2021: 350
- 2022: 331
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30-day fills
30-day fills decreased 34% from 560 in 2018 to 369 in 2022.
- 2018: 560
- 2019: 527
- 2020: 406
- 2021: 402
- 2022: 369
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Part D drug cost
Part D drug cost decreased 75% from $45,330 in 2018 to $11,500 in 2022.
- 2018: $45,330
- 2019: $38,889
- 2020: $26,997
- 2021: $19,564
- 2022: $11,500
Sources: CMS Medicare Physician & Other Practitioners (2022), CMS Medicare Part D Prescribers (2022), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2021 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, 2017–2022; 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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92012
Established patient problem focused exam of visual system
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168 | 102 | $133.58 | $96.83 |
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92014
Established patient complete exam of visual system
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165 | 155 | $187.81 | $137.55 |
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92133
Imaging of optic nerve
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75 | 74 | $85.50 | $38.27 |
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92083
Exam of visual field with extended testing
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52 | 50 | $134.78 | $68.76 |
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92020
Exam of the internal drainage system of eye
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23 | 23 | $88.01 | $29.99 |
Source: CMS Part B by Provider and Service, 2022; 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 2022.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Latanoprost | Latanoprost | 116 | 3,270 | $3,135.02 | 22 |
| Brimonidine Tartrate | Brimonidine Tartrate | 69 | 1,604 | $1,354.69 | — |
| Dorzolamide-Timolol | Dorzolamide Hcl/Timolol Maleat | 64 | 2,650 | $2,334.51 | 11 |
| Timolol Maleate | Timolol Maleate | 47 | 1,300 | $601.85 | — |
| Travoprost | Travoprost | 24 | 646 | $3,605.19 | — |
| Prednisolone Acetate | Prednisolone Acetate | 11 | 242 | $468.27 | — |
Source: CMS Part D by Provider and Drug, 2022; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207W00000X
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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - OPHTHALMOLOGY
I20120220001125
GU
7113185372
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.
Nurse Practitioner - Family
Nurse Practitioner
Nurse Practitioner - Family
Family Nurse Practitioner
Physical Therapist
Family Medicine
Doctor of Medicine (M.D.)
Neuromusculoskeletal Medicine, Sports Medicine
Doctor of Medicine (M.D.)
Physical Therapist
Registered Physical Therapist
Career & Practice History
NPI enumerated November 15, 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 Ophthalmology Specialists in Tamuning
Mailing Address
388 Ypao Rd
Tamuning, GU 969133701
Phone: 6716468881