Denny Lau, DO
NPI 1326492414 · Family Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Denny Lau, DO is a Family Medicine Physician provider in Chicago, IL (NPI 1326492414).
Provider details
- NPI number
- 1326492414
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 036148362 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 3 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 15 |
| Losartan Potassium | 15 |
| Metformin Hcl | 13 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 1475 E Belvidere Rd Unit 385Grayslake, IL 60030-2026Phone: (312) 694-0484
Registry dates
- Enumerated
- 2016-04-15
- Last updated
- 2020-02-04
- Certified
- 2020-02-04
Frequently asked questions
- What is Denny Lau's NPI number?
- Denny Lau's National Provider Identifier (NPI) is 1326492414, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Denny Lau's specialty?
- Denny Lau is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Denny Lau located?
- Denny Lau's practice location on file with NPPES is 1102 W Argyle St, Chicago, IL 60640-3610.
- What is Denny Lau's phone number?
- The practice phone number listed in the NPPES registry for Denny Lau is (773) 394-2888.
- Does Denny Lau accept Medicare?
- Denny Lau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Denny Lau's NPI active?
- Yes — Denny Lau's NPI (1326492414) is active in the NPPES registry as of the last update on 2020-02-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.