NPPES file of Aug 9, 2026

Wonjin To, NURSE PRACTITIONER

Family Nurse Practitioner · Philadelphia, PA

Wonjin To, NURSE PRACTITIONER is a family nurse practitioner with a practice address in Philadelphia, Pennsylvania, and NPI 1609401207, issued on Mar 4, 2020. Check the license (Pennsylvania SP020119, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1609401207
Name
Wonjin To
Credential
NURSE PRACTITIONER
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
SP020119 PA
1316902885 PA
Self-reported in NPPES; status is on the state search
Practice location
2821 Island Ave Ste D&E, Philadelphia, PA 19153
Phone
(215) 863-6110
Enumerated
Mar 4, 2020
Record last updated
Jul 29, 2022
Medicare enrollment
Enrolled (PECOS I20200331001352); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2821 Island Ave Ste D&E

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Vijay Choudhry, M.D.Internal Medicine Physician1639283062

Verify Wonjin To in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license SP020119
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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2.5 times the Medicare Part D claims of the average family nurse practitioner in 2024

3,209 Medicare Part D claims for 394 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 33 claims were for opioids.

  1. Wonjin To3,209
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium293 claims
  2. Amlodipine Besylate261 claims
  3. Losartan Potassium149 claims
  4. Gabapentin124 claims
  5. Albuterol Sulfate Hfa98 claims
  6. Metformin Hcl95 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $157.56

8 payments; by number, the most common kind was food and beverage; the largest payer was Exact Sciences Corporation. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Wonjin To$157.56
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Trinity Health Mid-Atlantic Medical GroupLanghorne, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

896 family nurse practitioner records list a practice address in Philadelphia

They are 896 of the 42,849 NPPES records with a practice address in Philadelphia, and 7,209 family nurse practitioner records in Pennsylvania.

Other family nurse practitioner records in Pennsylvania

  1. Mynga AbarcaWynnewood, PA1700778230
  2. Mackenzie Abate, CRNPPhiladelphia, PA1942958525
  3. Deborah Abbonizio, CRNPMeadowbrook, PA1457588501
  4. Alyssa Abbott, CRNPHermitage, PA1669074456
  5. Amanda Abboud, FNP-BCSpringfield, PA1326588260
  6. Heather AbdallaQuakertown, PA1386179489
  7. Samah Abdelwahab, CRNPDoylestown, PA1659022374
  8. Kathy Abel, CRNPPhiladelphia, PA1649227570
  9. Amanda AberPittsburgh, PA1174357644
  10. Kevin AbercrombiePittsburgh, PA1073109344

Common questions

What is Wonjin To, NURSE PRACTITIONER's NPI number?

Wonjin To, NURSE PRACTITIONER's National Provider Identifier (NPI) is 1609401207, issued on Mar 4, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Wonjin To, NURSE PRACTITIONER located?

The NPPES record lists a practice address at 2821 Island Ave Ste D&E, Philadelphia, PA, 19153. Phone: (215) 863-6110. Providers update this record themselves, so call before visiting.

How can I verify Wonjin To, NURSE PRACTITIONER's license?

NPPES lists Pennsylvania license number SP020119, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

How much does Wonjin To, NURSE PRACTITIONER prescribe under Medicare Part D?

In 2024, Wonjin To, NURSE PRACTITIONER had 3,209 Medicare Part D claims for 394 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.