NPPES file of Aug 9, 2026

Elizabeth Isak

Obstetrics & Gynecology Physician · Chicago, IL

Elizabeth Isak is an obstetrics & gynecology physician with a practice address in Chicago, Illinois, and NPI 1003347055, issued on Mar 22, 2017. Check the license (Illinois 036157790, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1003347055
Name
Elizabeth Isak
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
036157790 IL
Self-reported in NPPES; status is on the state search
Practice location
680 N Lake Shore Dr Ste 810, Chicago, IL 60611
Phone
(312) 926-8811
Enumerated
Mar 22, 2017
Record last updated
Feb 21, 2022
Fax
(312) 926-8855
Medicare enrollment
Enrolled (PECOS I20210831003554); accepts Medicare assignment
Medical or professional school
University Of North Carolina At Chapel Hill School Of Medicine, 2017
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 680 N Lake Shore Dr Ste 810

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Megan Hizel, CNMAdvanced Practice Midwife1831873611
  2. Tiphany Jackson, MDObstetrics & Gynecology Physician1881049666
  3. Norah Kilpatrick, DNP, CNMAdvanced Practice Midwife1730921925
  4. Jessica Murphy, APRN, CNMAdvanced Practice Midwife1851723647
  5. Annika Nilsen, MDObstetrics & Gynecology Physician1871048058
  6. Rebekah Osgood, M.D.Obstetrics & Gynecology Physician1013146596

Verify Elizabeth Isak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036157790
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

The MIPS final score for 2023 (Medicare payment program): 94.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score82.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $19.18

1 payment: food and beverage; the largest payer was Organon Llc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Elizabeth Isak$19.18
  2. Specialty average$1,030.61

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

  1. Northwestern Medical Faculty FoundationChicago, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Elizabeth Isak among 2,062 obstetrics & gynecology physician records in Illinois

Elizabeth Isak is one of 2,062 obstetrics & gynecology physician records with a practice address in Illinois. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 76% of them.

  • NPI issued2017 · 76% of these records are older, 21% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2017 · median 2006 among the 1,168 with a school on file
  • Record last updated2022 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

700 obstetrics & gynecology physician records list a practice address in Chicago

They are 700 of the 63,379 NPPES records with a practice address in Chicago, and 2,062 obstetrics & gynecology physician records in Illinois.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Angela Chaudhari, M.D.Chicago, IL 606111275596959
  2. April Dewhite, M.D.Chicago, IL 606111265415848
  3. Julie Ericson, M.D.Chicago, IL 606111588628754
  4. Patricia Gale, MDChicago, IL 606111437119229
  5. Micah Garb, M.D.Chicago, IL 606111225012362
  6. Parul Gupta, M.D.Chicago, IL 606111023001187
  7. Elena Kamel, M.D.Chicago, IL 606111790749463
  8. Julie Levitt, M.D.Chicago, IL 606111215991807

Common questions

What is Elizabeth Isak's NPI number?

Elizabeth Isak's National Provider Identifier (NPI) is 1003347055, issued on Mar 22, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth Isak located?

The NPPES record lists a practice address at 680 N Lake Shore Dr Ste 810, Chicago, IL, 60611. Phone: (312) 926-8811. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth Isak's license?

NPPES lists Illinois license number 036157790, 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.

What is Elizabeth Isak's MIPS final score?

The 2023 MIPS final score is 94.1 of 100. 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.