NPI registry status
Active
2026 NPPES data Optometrist NPI 1124071899 OD
Verify on CMS → Sonja Biddle, OD
Optometrist in Seaford, Delaware.
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
290
Medicare Part D claims · 86 beneficiaries · Optometrist avg: 257
Generic prescribing
71%
generic claims · 29% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
90.3/100
▲ 7 pts above national avg 83.1 · Exceptional
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
Sonja Biddle, OD reported a CMS MIPS final score of 90.3/100 - above the 83.1 national average - and filed 290 Medicare Part D claims in 2023.
- 90.3/100
- MIPS score · +7 vs avg
- 290
- Part D claims, 2023
- 71%
- 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.
Sonja Biddle, OD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
90 Top 40% higher than 60% 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 Sonja Biddle, OD sits
This provider among optometrist peers
Across the 6,527 optometrist providers who report both Medicare Part D prescribing and a MIPS quality score, Sonja Biddle, OD writes more Part D claims than 43% of them and scores higher on MIPS quality than 61% - placing this provider in the lower-volume, high-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 Sonja Biddle, OD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Sonja Biddle, OD?
High performer (top quartile)Primary specialty
Optometrist
Medicare Part D claims
290 13% vs specialty avg
MIPS final score
90.3/100 7.2 pts vs avg
Specialty distribution in Delaware
How Optometrist compares to other specialties among Delaware providers
Medicare quality performance, MIPS
Sonja Biddle, OD's 2023 MIPS final score plotted against the Optometrist national average
- MIPS Final Score
- 90.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Optometrist) - 90.3/100 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).
Sonja Biddle, OD appears in the CMS NPPES registry as a Optometrist provider holding OD credentials at 8500 HERRING RUN RD, Seaford, DE, 19973, with a listed phone of (302) 629-6691. NPI 1124071899 was issued on 05/17/2006.
Medicare Part D records for calendar year 2023 show 290 prescription claims written by this provider, covering 86 Medicare beneficiaries and totaling roughly $40K in drug spend, split 29% brand-name and 71% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 90.3/100 for the 2023 performance year (Quality 80.5), 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 | 1124071899 |
|---|---|
| Specialty | Optometrist |
| Credentials | OD |
| Gender | Female |
| NPI Issued | 05/17/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
90.2665
Final Score
Avg: 83.1
80.533
Quality
Reporting: Group practice
Brand vs generic prescribing mix · Above average
Sonja Biddle, OD - brand share 29.0%
Optometrist average
29% brand-name claims vs 71% generic, on 290 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.
290
Total Claims
$40K
Total Drug Cost
86
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 659
- Total Day Supply
- 19,423
- Brand vs Generic
- 29% brand / 71% generic
- Brand Drug Cost
- $30K
- Generic Drug Cost
- $10K
Patient Demographics
- Average Patient Age
- 76.9 years
- Avg HCC Risk Score
- 1.09
- Gender Split
- 56% female / 44% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Sonja Biddle, OD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Latanoprost
Latanoprost
81 claims
- Timolol Maleate
Timolol Maleate
45 claims
- Dorzolamide-Timolol
Dorzolamide-Timolol
34 claims
- Brimonidine Tartrate 32
Brimonidine Tartrate
32 claims
- Erythromycin 19
Erythromycin
19 claims
- Travoprost 16
Travoprost
16 claims
| Drug | Claims |
|---|---|
| Latanoprost | 81 |
| Timolol Maleate | 45 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 34 |
| Brimonidine Tartrate | 32 |
| Erythromycin Erythromycin Base | 19 |
| Travoprost | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Optometrist Overview
How Sonja Biddle, OD fits within the Optometrist landscape nationally.
60,484
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider
Sonja Biddle, OD's 290 claims are above the specialty average of 257.
Nearby Optometrist Providers in Delaware
Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as Biddle.
Dr. Rajni Acharya
O.D.
Wilmington, DE
Dr. Kaelyn Adams
O.D.
Bear, DE
Dr. Roger Ammon
O.D.
Wilmington, DE
Dr. Mira Aumiller
O.D.
Wilmington, DE
Dr. Daniel Baruffi
O.D.
Wilmington, DE
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 Delaware 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 Sonja Biddle, OD's specialty? ▼
Sonja Biddle, OD specializes in Optometrist and practices in Seaford, Delaware. Credentials: OD.
How much does Sonja Biddle, OD prescribe under Medicare Part D? ▼
In 2023, Sonja Biddle, OD wrote 290 Medicare Part D claims totaling $40K in drug costs for 86 beneficiaries.
What is Sonja Biddle, OD's Medicare quality score? ▼
Sonja Biddle, OD has a CMS MIPS Final Score of 90.3/100 (Quality: 80.5). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Sonja Biddle, OD located? ▼
Sonja Biddle, OD is located at 8500 HERRING RUN RD, Seaford, DE, 19973. Phone: (302) 629-6691.
What is Sonja Biddle, OD's NPI number? ▼
Sonja Biddle, OD's National Provider Identifier (NPI) is 1124071899, issued on 05/17/2006.
Does Sonja Biddle, OD prescribe more brand-name or generic drugs? ▼
Sonja Biddle, OD's prescribing is 29% brand-name and 71% generic drugs by claim count, with $30K 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 Sonja Biddle, OD prescribe most often? ▼
Based on 2023 Medicare Part D data, Sonja Biddle, OD's most frequently prescribed drugs include Latanoprost, Timolol Maleate, Dorzolamide-Timolol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sonja Biddle, OD accept Medicare? ▼
Sonja Biddle, OD appears in CMS Medicare data with 290 Part D claims and 86 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sonja Biddle, OD's credentials? ▼
Sonja Biddle, OD's NPI is 1124071899 with credentials OD. 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.