Jennifer Lazor, D.O.
NPI 1346515871 · Nephrology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Lazor, D.O. is a Nephrology Physician provider in Chicago, IL (NPI 1346515871).
Provider details
- NPI number
- 1346515871
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 036.136935 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 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
431 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 | 202 | $79 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 70 | $174 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 51 | $354 |
| Hemodialysis Procedure With Physician Evaluation90935 | 38 | $71 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 37 | $50 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydralazine Hcl | 49 | 12 |
| Amlodipine Besylate | 48 | 16 |
| Carvedilol | 48 | 11 |
| Furosemide | 48 | 15 |
| Calcitriol | 32 | — |
| Losartan Potassium | 25 | — |
| Allopurinol | 23 | — |
| Sevelamer Carbonate | 22 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$11 across 4 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
- 2012-03-16
- Last updated
- 2017-12-20
Frequently asked questions
- What is Jennifer Lazor's NPI number?
- Jennifer Lazor's National Provider Identifier (NPI) is 1346515871, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Lazor's specialty?
- Jennifer Lazor is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Jennifer Lazor located?
- Jennifer Lazor's practice location on file with NPPES is 1426 W Washington Blvd, Chicago, IL 60607-1821.
- What is Jennifer Lazor's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Lazor is (312) 829-1424.
- Does Jennifer Lazor accept Medicare?
- Jennifer Lazor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Lazor's NPI active?
- Yes — Jennifer Lazor's NPI (1346515871) is active in the NPPES registry as of the last update on 2017-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.