Il Chon, M.D.
NPI 1538173869 · Internal Medicine Physician · Ephrata, PA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Il Chon, M.D. is a Internal Medicine Physician provider in Ephrata, PA (NPI 1538173869).
Provider details
- NPI number
- 1538173869
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD073540L (PA)
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
480 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 96 | $74 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 80 | $123 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 57 | $108 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 50 | $70 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 43 | $102 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 109 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 226 | 58 |
| Atorvastatin Calcium | 218 | 63 |
| Lisinopril | 176 | 51 |
| Levothyroxine Sodium | 175 | 47 |
| Losartan Potassium | 173 | 55 |
| Amlodipine Besylate | 169 | 50 |
| Metoprolol Tartrate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$403 across 21 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
- 2006-07-29
- Last updated
- 2012-01-20
Frequently asked questions
- What is Il Chon's NPI number?
- Il Chon's National Provider Identifier (NPI) is 1538173869, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Il Chon's specialty?
- Il Chon is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Il Chon located?
- Il Chon's practice location on file with NPPES is 446 N Reading Rd, Ephrata, PA 17522-9802.
- What is Il Chon's phone number?
- The practice phone number listed in the NPPES registry for Il Chon is (717) 733-6546.
- Does Il Chon accept Medicare?
- Il Chon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Il Chon's NPI active?
- Yes — Il Chon's NPI (1538173869) is active in the NPPES registry as of the last update on 2012-01-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.