Wonil Park, M.D.
NPI 1588753842 · Internal Medicine Physician · Ridgefield, NJ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wonil Park, M.D. is a Internal Medicine Physician provider in Ridgefield, NJ (NPI 1588753842).
Provider details
- NPI number
- 1588753842
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MA58515 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
10,134 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Therapy Procedure Using Exercise to Develop Strength, Endurance, Range of Motion, and Flexibility, Each 15 Minutes97110 | 1,822 | $28 |
| Therapy Procedure Using Manual Technique, Each 15 Minutes97140 | 1,027 | $22 |
| Electrical Stimulation (unattended), to One Or More Areas for Indication(s) Other Than Wound Care, As Part of a Therapy Plan of CareG0283 | 951 | $10 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 534 | $100 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457 | 401 | $54 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 64 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 795 | 186 |
| Atorvastatin Calcium | 731 | 182 |
| Losartan Potassium | 464 | 105 |
| Metformin Hcl | 341 | 86 |
| Simvastatin | 167 | 45 |
| Levothyroxine Sodium | 144 | 31 |
| Tamsulosin Hcl | 127 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$125 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-12
- Last updated
- 2020-02-23
- Certified
- 2020-02-23
Frequently asked questions
- What is Wonil Park's NPI number?
- Wonil Park's National Provider Identifier (NPI) is 1588753842, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wonil Park's specialty?
- Wonil Park is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Wonil Park located?
- Wonil Park's practice location on file with NPPES is 784 Grand Ave Ste 201, Ridgefield, NJ 07657-1043.
- What is Wonil Park's phone number?
- The practice phone number listed in the NPPES registry for Wonil Park is (201) 346-0999.
- Does Wonil Park accept Medicare?
- Wonil Park is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wonil Park's NPI active?
- Yes — Wonil Park's NPI (1588753842) is active in the NPPES registry as of the last update on 2020-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.