NPI registry status
Active
2026 NPPES data Rehabilitation Practitioner NPI 1609401207 NURSE PRACTITIONER
Verify on CMS → Wonjin To, NURSE PRACTITIONER
Rehabilitation Practitioner in Philadelphia, Pennsylvania.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 18,406 in Rehabilitation Practitioner, 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
2K
Medicare Part D claims · 380 beneficiaries · Rehabilitation Practitioner avg: 543
Generic prescribing
86%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$157.56
8 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
Wonjin To, NURSE PRACTITIONER filed 1,976 Medicare Part D claims in 2023 as a Rehabilitation Practitioner in Philadelphia, Pennsylvania, prescribing 86% generic.
- 2K
- Part D claims, 2023
- 86%
- generic prescribing
- $157.56
- 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.
Wonjin To, NURSE PRACTITIONER's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,976 Top 16% higher than 84% 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 Wonjin To, NURSE PRACTITIONER?
Quality data not reportedPrimary specialty
Rehabilitation Practitioner
Medicare Part D claims
1,976 264% vs specialty avg
Specialty distribution in Pennsylvania
How Rehabilitation Practitioner compares to other specialties among Pennsylvania 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 Rehabilitation Practitioner. 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).
Wonjin To, NURSE PRACTITIONER appears in the CMS NPPES registry as a Rehabilitation Practitioner provider holding NURSE PRACTITIONER credentials at 2821 ISLAND AVE STE D&E, Philadelphia, PA, 19153, with a listed phone of (215) 863-6110. NPI 1609401207 was issued on 03/04/2020.
Medicare Part D records for calendar year 2023 show 1,976 prescription claims written by this provider, covering 380 Medicare beneficiaries and totaling roughly $159K in drug spend, split 13% brand-name and 86% generic by claim count.
Rehabilitation Practitioner is a mid-sized specialty nationwide, with 18,406 enrolled providers across 51 states and an average of 543 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 | 1609401207 |
|---|---|
| Specialty | Rehabilitation Practitioner |
| Credentials | NURSE PRACTITIONER |
| Gender | Female |
| NPI Issued | 03/04/2020 |
Hospital and facility affiliations
Facilities where Wonjin To, NURSE PRACTITIONER 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.
Trinity Health Mid-Atlantic Medical Group
Langhorne, PA
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 Wonjin To, NURSE PRACTITIONER. Source: openpaymentsdata.cms.gov.
Total received
$158
Largest payer
Exact Sciences Corporation
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.
License & disciplinary context - Pennsylvania PA-BOM 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 ~45K Pennsylvania medical licensees in 2023 - they are NOT specific to Wonjin To, NURSE PRACTITIONER. To verify Wonjin To, NURSE PRACTITIONER's current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases
PA-BOM 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 Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Wonjin To, NURSE PRACTITIONER - brand share 13.0%
Rehabilitation Practitioner average
13% brand-name claims vs 86% generic, on 1,976 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.
1,976
Total Claims
$159K
Total Drug Cost
380
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,102
- Total Day Supply
- 119,961
- Brand vs Generic
- 13% brand / 86% generic
- Brand Drug Cost
- $118K
- Generic Drug Cost
- $40K
- Antibiotic Claims
- 24
Patient Demographics
- Average Patient Age
- 70.8 years
- Avg HCC Risk Score
- 1.51
- Gender Split
- 65% female / 35% male
- Age Distribution
- <65: 78, 65-74: 161, 75-84: 101, 85+: 40
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Wonjin To, NURSE PRACTITIONER prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amlodipine Besylate
Amlodipine Besylate
140 claims
- Atorvastatin Calcium
Atorvastatin Calcium
140 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
82 claims
- Hydrochlorothiazide
Hydrochlorothiazide
79 claims
- Diclofenac Sodium
Diclofenac Sodium
69 claims
- Losartan Potassium
Losartan Potassium
67 claims
- Gabapentin
Gabapentin
66 claims
- Omeprazole 54
Omeprazole
54 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 140 |
| Atorvastatin Calcium | 140 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 82 |
| Hydrochlorothiazide | 79 |
| Diclofenac Sodium | 69 |
| Losartan Potassium | 67 |
| Gabapentin | 66 |
| Omeprazole | 54 |
| Metformin Hcl | 53 |
| Metoprolol Succinate | 48 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Rehabilitation Practitioner Overview
How Wonjin To, NURSE PRACTITIONER fits within the Rehabilitation Practitioner landscape nationally.
18,406
Rehabilitation Practitioner Providers in US
51
States with Rehabilitation Practitioner
543
Avg Claims per Provider
Wonjin To, NURSE PRACTITIONER's 1,976 claims are above the specialty average of 543.
Nearby Rehabilitation Practitioner Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as To.
Dr. Denise Adamski
CCC-SLP
Apollo, PA
Nancy Akers
Philadelphia, PA
Dr. Herbert Avart
DO
Broomall, PA
Dr. Christine Beck
MD
Easton, PA
Dr. Shannon Beckish
OT
Dickson City, PA
Compare Rehabilitation Practitioner 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 Pennsylvania medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Rehabilitation Practitioner 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 Wonjin To, NURSE PRACTITIONER's specialty? ▼
Wonjin To, NURSE PRACTITIONER specializes in Rehabilitation Practitioner and practices in Philadelphia, Pennsylvania. Credentials: NURSE PRACTITIONER.
How much does Wonjin To, NURSE PRACTITIONER prescribe under Medicare Part D? ▼
In 2023, Wonjin To, NURSE PRACTITIONER wrote 1,976 Medicare Part D claims totaling $159K in drug costs for 380 beneficiaries.
Where is Wonjin To, NURSE PRACTITIONER located? ▼
Wonjin To, NURSE PRACTITIONER is located at 2821 ISLAND AVE STE D&E, Philadelphia, PA, 19153. Phone: (215) 863-6110.
What is Wonjin To, NURSE PRACTITIONER's NPI number? ▼
Wonjin To, NURSE PRACTITIONER's National Provider Identifier (NPI) is 1609401207, issued on 03/04/2020.
Does Wonjin To, NURSE PRACTITIONER prescribe more brand-name or generic drugs? ▼
Wonjin To, NURSE PRACTITIONER's prescribing is 13% brand-name and 86% generic drugs by claim count, with $118K in brand drug costs.
How many Rehabilitation Practitioner providers are there in the US? ▼
There are 18,406 Rehabilitation Practitioner providers across 51 states in the US. The average Rehabilitation Practitioner provider writes 543 Medicare Part D claims per year.
What drugs does Wonjin To, NURSE PRACTITIONER prescribe most often? ▼
Based on 2023 Medicare Part D data, Wonjin To, NURSE PRACTITIONER's most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Wonjin To, NURSE PRACTITIONER accept Medicare? ▼
Wonjin To, NURSE PRACTITIONER appears in CMS Medicare data with 1,976 Part D claims and 380 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Wonjin To, NURSE PRACTITIONER's credentials? ▼
Wonjin To, NURSE PRACTITIONER's NPI is 1609401207 with credentials NURSE PRACTITIONER. 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.