NPI registry status
Active
2026 NPPES data Optometrist NPI 1861988610 O.D.
Verify on CMS → Shannon Howell, O.D.
Optometrist in Marion, Virginia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 60,484 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
565
Medicare Part D claims · 206 beneficiaries · Optometrist avg: 257
Generic prescribing
58%
generic claims · 42% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
74.7/100
▼ 8 pts below national avg 83.1 · Mid-tier
Industry payments
$134.05
1 payments · CMS Open Payments (Sunshine Act)
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
Shannon Howell, O.D. reported a CMS MIPS final score of 74.7/100 - below the 83.1 national average - and filed 565 Medicare Part D claims in 2023.
- 74.7/100
- MIPS score · -8 vs avg
- 565
- Part D claims, 2023
- 58%
- generic prescribing
- $134.05
- industry payments (Sunshine Act)
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.
Shannon Howell, O.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
75 12th percentile higher than 12% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Shannon Howell, O.D. sits
This provider among optometrist peers
Across the 6,527 optometrist providers who report both Medicare Part D prescribing and a MIPS quality score, Shannon Howell, O.D. writes more Part D claims than 67% of them and scores higher on MIPS quality than 20% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one optometrist peer from a representative sample of 60; the gold marker is Shannon Howell, O.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Shannon Howell, O.D.?
Below national averagePrimary specialty
Optometrist
Medicare Part D claims
565 120% vs specialty avg
MIPS final score
74.7/100 8.4 pts vs avg
Specialty distribution in Virginia
How Optometrist compares to other specialties among Virginia providers
Medicare quality performance, MIPS
Shannon Howell, O.D.'s 2023 MIPS final score plotted against the Optometrist national average
- MIPS Final Score
- 74.7/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Optometrist) - 74.7/100 vs national avg 83.1
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).
Shannon Howell, O.D. appears in the CMS NPPES registry as an Optometrist provider holding O.D. credentials at 1020 TERRACE DR STE 100, Marion, VA, 24354, with a listed phone of (276) 783-5157. NPI 1861988610 was issued on 07/05/2018.
Medicare Part D records for calendar year 2023 show 565 prescription claims written by this provider, covering 206 Medicare beneficiaries and totaling roughly $86K in drug spend, split 42% brand-name and 58% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 74.7/100 for the 2023 performance year (Quality 56.8), compared with the national average of 83.1.
Optometrist is a high-volume specialty nationwide, with 60,484 enrolled providers across 56 states and an average of 257 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 | 1861988610 |
|---|---|
| Specialty | Optometrist |
| Credentials | O.D. |
| Gender | Female |
| NPI Issued | 07/05/2018 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
74.7363
Final Score
Avg: 83.1
56.7933
Quality
95
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Shannon Howell, 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.
Envision Professional Group PLLC
Marion, VA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Shannon Howell, O.D.. Source: openpaymentsdata.cms.gov.
Total received
$134
Largest payer
Alcon Vision LLC
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Above average
Shannon Howell, O.D. - brand share 42.0%
Optometrist average
42% brand-name claims vs 58% generic, on 565 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.
565
Total Claims
$86K
Total Drug Cost
206
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 659
- Total Day Supply
- 17,565
- Brand vs Generic
- 42% brand / 58% generic
- Brand Drug Cost
- $77K
- Generic Drug Cost
- $9K
Patient Demographics
- Average Patient Age
- 70.5 years
- Avg HCC Risk Score
- 1.30
- Gender Split
- 60% female / 40% male
- Age Distribution
- <65: 42, 65-74: 90, 75-84: 62, 85+: 12
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Shannon Howell, O.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Latanoprost
Latanoprost
120 claims
- Ketorolac Trometha…
Ketorolac Tromethamine
98 claims
- Prednisolone Acetate
Prednisolone Acetate
67 claims
- Neomycin-Polymyxin… 43
Neomycin-Polymyxin-Dexameth
43 claims
- Restasis 34
Restasis
34 claims
- Xiidra 34
Xiidra
34 claims
- Lumigan 16
Lumigan
16 claims
- Timolol Maleate 15
Timolol Maleate
15 claims
| Drug | Claims |
|---|---|
| Latanoprost | 120 |
| Ketorolac Tromethamine | 98 |
| Prednisolone Acetate | 67 |
| Neomycin-Polymyxin-Dexameth Neomycin/Polymyxin B/Dexametha | 43 |
| Restasis Cyclosporine | 34 |
| Xiidra Lifitegrast | 34 |
| Lumigan Bimatoprost | 16 |
| Timolol Maleate | 15 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 14 |
| Lotemax Sm Loteprednol Etabonate | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Optometrist Overview
How Shannon Howell, O.D. fits within the Optometrist landscape nationally.
60,484
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider
Shannon Howell, O.D.'s 565 claims are above the specialty average of 257.
Nearby Optometrist Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Howell.
Dr. Farzana Abdul-Ali
OD
Middleburg, VA
Dr. Meklit Abebe
O.D
Sterling, VA
Dr. Lisa Abraham
OD
Ashburn, VA
Dr. Mark Abraham
OD
Falls Church, VA
Dr. Robert Acquadro
O.D.
Fredericksburg, VA
Compare 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 Virginia medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby 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 Shannon Howell, O.D.'s specialty? ▼
Shannon Howell, O.D. specializes in Optometrist and practices in Marion, Virginia. Credentials: O.D..
How much does Shannon Howell, O.D. prescribe under Medicare Part D? ▼
In 2023, Shannon Howell, O.D. wrote 565 Medicare Part D claims totaling $86K in drug costs for 206 beneficiaries.
What is Shannon Howell, O.D.'s Medicare quality score? ▼
Shannon Howell, O.D. has a CMS MIPS Final Score of 74.7/100 (Quality: 56.8). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Shannon Howell, O.D. located? ▼
Shannon Howell, O.D. is located at 1020 TERRACE DR STE 100, Marion, VA, 24354. Phone: (276) 783-5157.
What is Shannon Howell, O.D.'s NPI number? ▼
Shannon Howell, O.D.'s National Provider Identifier (NPI) is 1861988610, issued on 07/05/2018.
Does Shannon Howell, O.D. prescribe more brand-name or generic drugs? ▼
Shannon Howell, O.D.'s prescribing is 42% brand-name and 58% generic drugs by claim count, with $77K in brand drug costs.
How many Optometrist providers are there in the US? ▼
There are 60,484 Optometrist providers across 56 states in the US. The average Optometrist provider writes 257 Medicare Part D claims per year.
What drugs does Shannon Howell, O.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Shannon Howell, O.D.'s most frequently prescribed drugs include Latanoprost, Ketorolac Tromethamine, Prednisolone Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Shannon Howell, O.D. accept Medicare? ▼
Shannon Howell, O.D. appears in CMS Medicare data with 565 Part D claims and 206 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Shannon Howell, O.D.'s credentials? ▼
Shannon Howell, O.D.'s NPI is 1861988610 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.