Jennie Ng, M.D.
NPI 1063599744 · Gastroenterology Physician · Oakbrook Terrace, IL
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennie Ng, M.D. is a Gastroenterology Physician provider in Oakbrook Terrace, IL (NPI 1063599744).
Provider details
- NPI number
- 1063599744
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036-111351 (IL)
Specialties & taxonomies
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
475 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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 74 | $173 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 49 | $181 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 42 | $94 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 39 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 35 | $94 |
| Biopsy of Large Bowel Using a Flexible Endoscope |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 88 | 88 |
| Omeprazole | 61 | 27 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 42 | 42 |
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 40 | 39 |
| Dicyclomine Hcl | 33 | 22 |
| Famotidine | 29 | 17 |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$330 across 11 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
Additional practice locations (1)
- 3722 Harlem AveSuite 102Riverside, IL 60546-2312Phone: (708) 783-7000
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2023-08-16
- Certified
- 2023-08-16
Frequently asked questions
- What is Jennie Ng's NPI number?
- Jennie Ng's National Provider Identifier (NPI) is 1063599744, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennie Ng's specialty?
- Jennie Ng is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Jennie Ng located?
- Jennie Ng's practice location on file with NPPES is 2 Transam Plaza Dr Ste 100, Oakbrook Terrace, IL 60181-4289.
- What is Jennie Ng's phone number?
- The practice phone number listed in the NPPES registry for Jennie Ng is (630) 717-2600.
- Does Jennie Ng accept Medicare?
- Jennie Ng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennie Ng's NPI active?
- Yes — Jennie Ng's NPI (1063599744) is active in the NPPES registry as of the last update on 2023-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.