NPPES file of Aug 9, 2026

Neonatal-Perinatal Medicine Physician in Illinois

362 NPPES records list neonatal-perinatal medicine physician with a practice address in Illinois, 2.9 per 100,000 residents, the 8th highest rate of 50. Chicago and Park Ridge have the most; each record links to the provider's NPI and the Illinois license search. Page 8 of 8.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2080N0001X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Chicago has the most, 173

  1. Chicago173
  2. Park Ridge22
  3. Evanston21
  4. Oak Brook16
  5. Maywood15

Neonatal-Perinatal Medicine Physician records in Illinois

  1. Dharmapuri VidyasagarChicago, IL 606121083724660
  2. Lydia VielmettiChicago, IL 606111417582602
  3. Joseph Villalona, M.D.Chicago, IL 606221619976255
  4. Presley VolkemaChicago, IL 606111265993505
  5. Annie Wang, M.D.Chicago, IL 606371699156844
  6. Samir Wassef, M.D.Chicago, IL 606221346208519
  7. Rachel Weinstein, MDChicago, IL 606111043715154
  8. Marc Weiss, MDMaywood, IL 601531881668713
  9. Yixin Xu, DOMaywood, IL 601531639758048
  10. Elizabeth Yaro, MDChicago, IL 606371043848344
  11. Fatima Zaheer, M.D.Oak Lawn, IL 604531760897086
  12. Evangelia Zikos, MDHinsdale, IL 605211124194873

Source: CMS NPPES, primary taxonomy 2080N0001X: records by practice city and the list of records, file of Aug 9, 2026.

Illinois ranks 8 of 50 per resident

  1. Massachusetts3.2
  2. Pennsylvania3.0
  3. Connecticut3.0
  4. Illinois2.9
  5. New Jersey2.8
  6. Iowa2.8
  7. 50 states and D.C.2.3

Source: CMS NPPES, primary taxonomy 2080N0001X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

15.5% of these records appear in a Medicare file, against 15.6% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Illinois15.5%
  2. United States15.6%

Neonatal-Perinatal Medicine Physician records in Illinois, measured

  • In a Medicare file56 of 362 · 15.5% here, 15.6% nationally
  • In the CMS Doctors and Clinicians file26 · 7.2% here, 7.0% nationally
  • Not updated in five years or more185 · 51.1% here, 55.5% nationally
  • Median graduation year2004 · the 25 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2080N0001X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

362 NPPES records list neonatal-perinatal medicine physician (2080N0001X) as their primary taxonomy with a practice address in Illinois: 2.9 per 100,000 residents against 2.3 nationally (50 states and D.C.). Chicago has 173 of them (48%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Pennsylvania393
  2. Ohio327
  3. Florida457
  4. New Jersey261

States with a similar rate per 100,000

  1. Connecticut3.0
  2. Iowa2.8
  3. Utah2.8
  4. Indiana2.7

The largest states

  1. California871
  2. Texas697
  3. New York513
  4. Florida457
  5. Pennsylvania393

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record 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.