Oren Lakser, M.D.
NPI 1811098965 · Pediatric Pulmonology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Oren Lakser, M.D. is a Pediatric Pulmonology Physician provider in Chicago, IL (NPI 1811098965).
Provider details
- NPI number
- 1811098965
- Entity type
- Individual
- Primary specialty
- Pediatric Pulmonology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036102877 (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 tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 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 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Levalbuterol Tartratebrand: Levalbuterol Tartrate Hfa | 12 |
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 (2)
- 900 N Westmoreland Rd Ste 110Lake Forest, IL 60045-1688Phone: (312) 227-1010Fax: (312) 227-9061
- 701 Woodlands PkwySuite 200Vernon Hills, IL 60061-3101Phone: (847) 793-5450
Registry dates
- Enumerated
- 2006-09-25
- Last updated
- 2018-04-26
Frequently asked questions
- What is Oren Lakser's NPI number?
- Oren Lakser's National Provider Identifier (NPI) is 1811098965, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Oren Lakser's specialty?
- Oren Lakser is listed in the NPPES registry with a primary specialty of Pediatric Pulmonology Physician (Allopathic & Osteopathic Physicians).
- Where is Oren Lakser located?
- Oren Lakser's practice location on file with NPPES is 225 E Chicago Ave # 43, Chicago, IL 60611-2991.
- What is Oren Lakser's phone number?
- The practice phone number listed in the NPPES registry for Oren Lakser is (312) 227-6260.
- Does Oren Lakser accept Medicare?
- Oren Lakser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Oren Lakser's NPI active?
- Yes — Oren Lakser's NPI (1811098965) is active in the NPPES registry as of the last update on 2018-04-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.