Jennifer Ashley Lazor, D.O.
Nephrology Physician · Chicago, IL
Jennifer Ashley Lazor, D.O. is a nephrology physician with a practice address in Chicago, Illinois, and NPI 1346515871, issued on Mar 16, 2012. Check the license (Illinois 036.136935, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Jennifer Ashley Lazor
- Credential
- D.O.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License numbers
- 036.136935 IL
34.011289 OH
Self-reported in NPPES; status is on the state search - Practice location
- 1426 W Washington Blvd, Chicago, IL 60607
- Phone
- (312) 829-1424
- Enumerated
- Mar 16, 2012
- Record last updated
- Dec 20, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (312) 850-8431
- Medicaid ID
- 0112347 OH
- Medicare enrollment
- Enrolled (PECOS I20141208000314); accepts Medicare assignment
- Medical or professional school
- Ohio University, College Of Osteopathic Medicine, 2012
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 572 in Illinois → Look up another NPI →
Also registered at 1426 W Washington Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chaudhry Hamood Dhillon, MDNephrology Physician1306331277
- Karen Rezabek, MMSC, RD, LDNRegistered Dietitian1902015605
- Roger Rodby, MDNephrology Physician1043327927
- Ahmed Siddiqui, D.O.Nephrology Physician1235584541
- Marvin Sinsakul, M.D.Nephrology Physician1073620936
Verify Jennifer Ashley Lazor in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036.136935Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average nephrology physician in 2024
645 Medicare Part D claims for 89 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Hydralazine Hcl49 claims
- Amlodipine Besylate48 claims
- Carvedilol48 claims
- Furosemide48 claims
- Calcitriol32 claims
- Losartan Potassium25 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 84.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $10.50
4 payments; by number, the most common kind was education; the largest payer was Travere Therapeutics, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Cdc Physicians Organization, Inc.Fairview Park, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jennifer Ashley Lazor among 572 nephrology physician records in Illinois
Jennifer Ashley Lazor, D.O. is one of 572 nephrology physician records with a practice address in Illinois. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 75% of them.
- NPI issued2012 · 75% of these records are older, 23% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2012 · median 2002 among the 433 with a school on file
- Record last updated2017 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Illinois
There are 572 nephrology physician records in Illinois.
All 572 in Illinois → Every provider in Chicago → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Pravir Baxi, M.D.Chicago, IL 606071780970731
- Juan Jose Cintron Garcia, MD, MPHChicago, IL 606071841693728
- Chaudhry Hamood Dhillon, MDChicago, IL 606071306331277
- William Duffy, MDChicago, IL 606071568448363
- Casey Gashti, MDChicago, IL 606071285762252
- Paru Kathpalia, MDChicago, IL 606071689864787
- Stephen Korbet, MDChicago, IL 606071972608289
- Roger Rodby, MDChicago, IL 606071043327927
Common questions
What is Jennifer Ashley Lazor, D.O.'s NPI number?
Jennifer Ashley Lazor, D.O.'s National Provider Identifier (NPI) is 1346515871, issued on Mar 16, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Ashley Lazor, D.O. located?
The NPPES record lists a practice address at 1426 W Washington Blvd, Chicago, IL, 60607. Phone: (312) 829-1424. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Ashley Lazor, D.O.'s license?
NPPES lists Illinois license number 036.136935, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jennifer Ashley Lazor, D.O. prescribe under Medicare Part D?
In 2024, Jennifer Ashley Lazor, D.O. had 645 Medicare Part D claims for 89 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Jennifer Ashley Lazor, D.O.'s MIPS final score?
The 2023 MIPS final score is 84.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.