NPI registry status
Active
2026 NPPES data Pediatric Optometrist NPI 1346226560 O.D.
Verify on CMS → Garth Christenson, O.D.
Pediatric Optometrist in Hudson, Wisconsin.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 317 in Pediatric 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
272
Medicare Part D claims · 47 beneficiaries · Pediatric Optometrist avg: 184
Generic prescribing
65%
generic claims · 35% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Garth Christenson, O.D. filed 272 Medicare Part D claims in 2023 as a Pediatric Optometrist in Hudson, Wisconsin, prescribing 65% generic.
- 272
- Part D claims, 2023
- 65%
- generic prescribing
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.
Garth Christenson, O.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
272 49th percentile higher than 49% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Garth Christenson, O.D.?
Quality data not reportedPrimary specialty
Pediatric Optometrist
Medicare Part D claims
272 48% vs specialty avg
Specialty distribution in Wisconsin
How Pediatric Optometrist compares to other specialties among Wisconsin 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 Pediatric 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).
Garth Christenson, O.D. appears in the CMS NPPES registry as a Pediatric Optometrist provider holding O.D. credentials at 2215 VINE ST, Hudson, WI, 54016, with a listed phone of (715) 381-1234. NPI 1346226560 was issued on 12/20/2005.
Medicare Part D records for calendar year 2023 show 272 prescription claims written by this provider, covering 47 Medicare beneficiaries and totaling roughly $14K in drug spend, split 35% brand-name and 65% generic by claim count.
Pediatric Optometrist is a narrow specialty nationwide, with 317 enrolled providers across 44 states and an average of 184 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1346226560 |
|---|---|
| Specialty | Pediatric Optometrist |
| Credentials | O.D. |
| Gender | Male |
| NPI Issued | 12/20/2005 |
Hospital and facility affiliations
Facilities where Garth Christenson, O.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Aeg Wisconsin Professional Ltd
Hudson, WI
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Above average
Garth Christenson, O.D. - brand share 35.0%
Pediatric Optometrist average
35% brand-name claims vs 65% generic, on 272 2023 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 2023.
272
Total Claims
$14K
Total Drug Cost
47
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 421
- Total Day Supply
- 12,023
- Brand vs Generic
- 35% brand / 65% generic
- Brand Drug Cost
- $9K
- Generic Drug Cost
- $5K
Patient Demographics
- Average Patient Age
- 74.7 years
- Avg HCC Risk Score
- 0.72
- Gender Split
- 45% female / 55% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Garth Christenson, O.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Latanoprost
Latanoprost
168 claims
- Dorzolamide-Timolol 38
Dorzolamide-Timolol
38 claims
- Brimonidine Tartrate 14
Brimonidine Tartrate
14 claims
- Travoprost 13
Travoprost
13 claims
- Brimonidine Tartra… 11
Brimonidine Tartrate-Timolol
11 claims
| Drug | Claims |
|---|---|
| Latanoprost | 168 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 38 |
| Brimonidine Tartrate | 14 |
| Travoprost | 13 |
| Brimonidine Tartrate-Timolol Brimonidine Tartrate/Timolol | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pediatric Optometrist Overview
How Garth Christenson, O.D. fits within the Pediatric Optometrist landscape nationally.
317
Pediatric Optometrist Providers in US
44
States with Pediatric Optometrist
184
Avg Claims per Provider
Garth Christenson, O.D.'s 272 claims are above the specialty average of 184.
Nearby Pediatric Optometrist Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Christenson.
Dr. Mallory Andrews
OD
Sheboygan, WI
Dr. Simran Brar
OD, FAAO
New Berlin, WI
Dr. Alicia Chacon
OD
Milwaukee, WI
Dr. Christina Tanios
OD
Milwaukee, WI
Dr. Siulley Vuong
OD
Milwaukee, WI
Compare Pediatric Optometrist nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Wisconsin medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Pediatric Optometrist peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Garth Christenson, O.D.'s specialty? ▼
Garth Christenson, O.D. specializes in Pediatric Optometrist and practices in Hudson, Wisconsin. Credentials: O.D..
How much does Garth Christenson, O.D. prescribe under Medicare Part D? ▼
In 2023, Garth Christenson, O.D. wrote 272 Medicare Part D claims totaling $14K in drug costs for 47 beneficiaries.
Where is Garth Christenson, O.D. located? ▼
Garth Christenson, O.D. is located at 2215 VINE ST, Hudson, WI, 54016. Phone: (715) 381-1234.
What is Garth Christenson, O.D.'s NPI number? ▼
Garth Christenson, O.D.'s National Provider Identifier (NPI) is 1346226560, issued on 12/20/2005.
Does Garth Christenson, O.D. prescribe more brand-name or generic drugs? ▼
Garth Christenson, O.D.'s prescribing is 35% brand-name and 65% generic drugs by claim count, with $9K in brand drug costs.
How many Pediatric Optometrist providers are there in the US? ▼
There are 317 Pediatric Optometrist providers across 44 states in the US. The average Pediatric Optometrist provider writes 184 Medicare Part D claims per year.
What drugs does Garth Christenson, O.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Garth Christenson, O.D.'s most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Brimonidine Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Garth Christenson, O.D. accept Medicare? ▼
Garth Christenson, O.D. appears in CMS Medicare data with 272 Part D claims and 47 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Garth Christenson, O.D.'s credentials? ▼
Garth Christenson, O.D.'s NPI is 1346226560 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 (2023). 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 April 2026 (NPPES) / 2023 (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
Compiled from official public sources by the PlainDoctor editorial team.
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 May 2026.