Lillian Ng, DO
NPI 1871014522 · Family Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lillian Ng, DO is a Family Medicine Physician provider in Chicago, IL (NPI 1871014522).
Provider details
- NPI number
- 1871014522
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 125071538 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 140 | 50 |
| Amlodipine Besylate | 58 | 21 |
| Losartan Potassium | 55 | 24 |
| Gabapentin | 31 | 11 |
| Hydrochlorothiazide | 31 | 15 |
| Metoprolol Tartrate | 30 | 12 |
| Lisinopril | 29 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$124 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
- 2017-07-03
- Last updated
- 2021-12-17
Frequently asked questions
- What is Lillian Ng's NPI number?
- Lillian Ng's National Provider Identifier (NPI) is 1871014522, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lillian Ng's specialty?
- Lillian Ng is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lillian Ng located?
- Lillian Ng's practice location on file with NPPES is 3525 S Michigan Ave, Chicago, IL 60653-1019.
- What is Lillian Ng's phone number?
- The practice phone number listed in the NPPES registry for Lillian Ng is (415) 518-2663.
- Does Lillian Ng accept Medicare?
- Lillian Ng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lillian Ng's NPI active?
- Yes — Lillian Ng's NPI (1871014522) is active in the NPPES registry as of the last update on 2021-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.