NPI registry status
Active
2026 NPPES data Optometrist NPI 1386637668 O.D.
Verify on CMS → Harry Wiessner, O.D.
Optometrist in Walla Walla, Washington.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 61,426 in Optometrist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
258
Medicare Part D claims · 79 beneficiaries · Optometrist avg: 279
Generic prescribing
62%
generic claims · 38% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Harry Wiessner, O.D. filed 258 Medicare Part D claims in 2024 as an Optometrist in Walla Walla, Washington, prescribing 62% generic.
- 258
- Part D claims, 2024
- 62%
- generic prescribing
- ≥48th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Harry Wiessner, O.D.
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1386637668), first enumerated 08/23/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 258 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- State context
State board disciplinary context
Washington statewide board action statistics are published annually — these figures describe aggregate state activity, not Harry Wiessner, O.D.'s individual license status. Verify directly with the state medical board.
Source: WMC annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1386637668 · Optometrist
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1386637668
- ENUM-LEGACY 2005
- TAX-MEGA 61K Optometrist
- RX-LIGHT 258
- BOOK-LIGHT 1,616 in Washington
- PHOTO-ENUM William Vogel, OD · 2005
Harry Wiessner, O.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
258 ≥ 48th percentile 48% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Harry Wiessner, O.D.?
Quality data not reportedPrimary specialty
Optometrist
Medicare Part D claims
258 8% vs specialty avg
Specialty distribution in Washington
How Optometrist compares to other specialties among Washington providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Optometrist. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1386637668 |
|---|---|
| Specialty | Optometrist |
| Credentials | O.D. |
| Gender | Male |
| NPI Issued | 08/23/2005 |
License & disciplinary context - Washington WMC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~34K Washington medical licensees in 2023 - they are NOT specific to Harry Wiessner, O.D.. To verify Harry Wiessner, O.D.'s current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases
WMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Harry Wiessner, O.D. - brand share 38.0%
Optometrist average
38% brand-name claims vs 62% generic, on 258 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
258
Total Claims
$8K
Total Drug Cost
79
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 580.2
- Total Day Supply
- 16,942
- Brand vs Generic
- 38% brand / 62% generic
- Brand Drug Cost
- $5K
- Generic Drug Cost
- $3K
Patient Demographics
- Average Patient Age
- 75.8 years
- Avg HCC Risk Score
- 0.89
- Gender Split
- 54% female / 46% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Harry Wiessner, O.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Latanoprost
Latanoprost
142 claims
- Dorzolamide Hcl 41
Dorzolamide Hcl
41 claims
- Timolol Maleate 27
Timolol Maleate
27 claims
- Neomycin-Polymyxin… 15
Neomycin-Polymyxin-Dexameth
15 claims
| Drug | Claims |
|---|---|
| Latanoprost | 142 |
| Dorzolamide Hcl | 41 |
| Timolol Maleate | 27 |
| Neomycin-Polymyxin-Dexameth Neomycin/Polymyxin B/Dexametha | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Optometrist Overview
How Harry Wiessner, O.D. fits within the Optometrist landscape nationally.
61,426
Optometrist Providers in US
56
States with Optometrist
279
Avg Claims per Provider
Harry Wiessner, O.D.'s 258 claims are below the specialty average of 279.
Nationwide Optometrist peers with similar MIPS or enrollment year
Two federal-record peer sets for Wiessner, both outside Washington so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Optometrist Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Wiessner.
One of 1,616 Optometrist providers enrolled in Washington, 5 are shown here.
Dr. Jenni Aaseby
O.D.
Shelton, WA
Dr. Meagan-Rhose Abanto
OD
Everett, WA
Dr. Jabeen Abdulla
O.D.
Tacoma, WA
Dr. James Abel
OD
Renton, WA
Dr. Christina Abercrombie
OD
Kent, WA
Compare Optometrist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Harry Wiessner, O.D.'s specialty? ▼
Harry Wiessner, O.D. specializes in Optometrist and practices in Walla Walla, Washington. Credentials: O.D..
How much does Harry Wiessner, O.D. prescribe under Medicare Part D? ▼
In 2024, Harry Wiessner, O.D. wrote 258 Medicare Part D claims totaling $8K in drug costs for 79 beneficiaries.
Where is Harry Wiessner, O.D. located? ▼
Harry Wiessner, O.D. is located at 614 E ALDER ST, Walla Walla, WA, 99362. Phone: (509) 527-3937.
What is Harry Wiessner, O.D.'s NPI number? ▼
Harry Wiessner, O.D.'s National Provider Identifier (NPI) is 1386637668, issued on 08/23/2005.
Does Harry Wiessner, O.D. prescribe more brand-name or generic drugs? ▼
Harry Wiessner, O.D.'s prescribing is 38% brand-name and 62% generic drugs by claim count, with $5K in brand drug costs.
How many Optometrist providers are there in the US? ▼
There are 61,426 Optometrist providers across 56 states in the US. The average Optometrist provider writes 279 Medicare Part D claims per year.
What drugs does Harry Wiessner, O.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Harry Wiessner, O.D.'s most frequently prescribed drugs include Latanoprost, Dorzolamide Hcl, Timolol Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Harry Wiessner, O.D. accept Medicare? ▼
Harry Wiessner, O.D. appears in CMS Medicare data with 258 Part D claims and 79 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Harry Wiessner, O.D.'s credentials? ▼
Harry Wiessner, O.D.'s NPI is 1386637668 with credentials O.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.