John Pak, MD
NPI 1811937311 · Ophthalmic Plastic and Reconstructive Surgery Physician · Wheaton, IL
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Pak, MD is a Ophthalmic Plastic and Reconstructive Surgery Physician provider in Wheaton, IL (NPI 1811937311).
Provider details
- NPI number
- 1811937311
- Entity type
- Individual
- Primary specialty
- Ophthalmic Plastic and Reconstructive Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036-108561 (IL)
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
20 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
2,591 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,066 | $96 |
| Photography of Content of Eyes92285 | 247 | $25 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 205 | $118 |
| Injection Into Skin Growth, 1-7 Growths11900 | 182 | $61 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 164 | $135 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 348 | 309 |
| Prednisolone Acetate | 167 | 158 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 143 | 142 |
| Doxycycline Hyclate | 131 | 74 |
| Tobramycin/Dexamethasonebrand: Tobradex | 112 | 93 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 62 | 58 |
| Erythromycin Base |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$58 across 2 records (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
- 2006-06-07
- Last updated
- 2024-08-26
- Certified
- 2024-08-26
Frequently asked questions
- What is John Pak's NPI number?
- John Pak's National Provider Identifier (NPI) is 1811937311, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Pak's specialty?
- John Pak is listed in the NPPES registry with a primary specialty of Ophthalmic Plastic and Reconstructive Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is John Pak located?
- John Pak's practice location on file with NPPES is 2015 N Main St, Wheaton, IL 60187-3152.
- What is John Pak's phone number?
- The practice phone number listed in the NPPES registry for John Pak is (630) 668-8250.
- Does John Pak accept Medicare?
- John Pak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Pak's NPI active?
- Yes — John Pak's NPI (1811937311) is active in the NPPES registry as of the last update on 2024-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.