Dr. John M Parschauer , DO
Ophthalmology • Sandusky, OH
2600 Hayes Avenue
Sandusky, OH 44870
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 March 24, 2006; this date does not establish years in practice.
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Published CMS data list 228 Medicare Part D prescriptions, including refills, in 2016.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2016. Published rows only; this is not a quality measure.
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Published Part D records, 2016:
- Latanoprost — 69 prescription fills, including refills.
- Timolol Maleate — 44 prescription fills, including refills.
- Combigan (Brimonidine Tartrate/Timolol) — 32 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2016. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 7 records in the table · Guide: How to read Medicare Part D prescriber data
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Medicare Part D prescriptions went from 1,051 in 2013 to 228 in 2016.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2013–2016.
Practice Location & Contact Primary Location
2600 Hayes Avenue
Sandusky, OH 44870
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.
30-day fills
404 standardized 30-day fills in 2016
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
$42,585 in 2016
The total cost of these prescriptions in 2016, 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, 2016.
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.
Compared with the same specialty in Sandusky and Ohio
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Parschauer are from 2016.
5 active clinicians are listed under Ophthalmology with a practice address in Sandusky, OH (752 in Ohio).
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 D prescriptions
Medicare Part D prescriptions decreased 78% from 1,051 in 2013 to 228 in 2016.
- 2013: 1,051
- 2014: 1,029
- 2015: 780
- 2016: 228
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30-day fills
30-day fills decreased 77% from 1,755 in 2013 to 404 in 2016.
- 2013: 1,755
- 2014: 1,684
- 2015: 1,273
- 2016: 404
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Part D drug cost
Part D drug cost decreased 60% from $107,092 in 2013 to $42,585 in 2016.
- 2013: $107,092
- 2014: $120,761
- 2015: $101,562
- 2016: $42,585
Sources: CMS Medicare Part D Prescribers (2016), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2016.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Latanoprost | Latanoprost | 69 | 3,248 | $1,155.94 | 26 |
| Timolol Maleate | Timolol Maleate | 44 | 2,846 | $5,121.28 | 17 |
| Combigan | Brimonidine Tartrate/Timolol | 32 | 1,379 | $7,721.73 | 12 |
| Restasis | Cyclosporine | 26 | 1,500 | $20,219.53 | 11 |
| Dorzolamide-Timolol | Dorzolamide Hcl/Timolol Maleat | 24 | 1,540 | $708.27 | — |
| Travatan Z | Travoprost | 22 | 565 | $4,673.12 | — |
| Lumigan | Bimatoprost | 11 | 625 | $2,985.21 | — |
Source: CMS Part D by Provider and Drug, 2016; 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
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
Ophthalmology
Doctor of Medicine (M.D.)
Optometrist
Doctor of Optometry
Ophthalmology
Doctor of Osteopathic Medicine (D.O.)
Optometrist
Doctor of Optometry
Career & Practice History
NPI enumerated March 24, 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 Sandusky
Healthcare providers in SanduskyMailing Address
Po Box 2238
Sandusky, OH 44871
Phone: 4196256181