NPPES file of Aug 9, 2026

Amelia O'Brien-Combs, MPH, RDN

Registered Dietitian · Chicago, IL

Amelia O'Brien-Combs, MPH, RDN is a registered dietitian with a practice address in Chicago, Illinois, and NPI 1437815594, issued on Nov 12, 2021. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1437815594
Name
Amelia O'Brien-Combs
Credential
MPH, RDN
Primary taxonomy
Registered Dietitian 133V00000X
Practice location
3921 N Lincoln Ave, Chicago, IL 60613
Phone
(872) 216-7870
Enumerated
Nov 12, 2021
Record last updated
Nov 12, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20251203000582); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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.
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8 nearest registered dietitian records → All 2,870 in Illinois → Look up another NPI →

Also registered at 3921 N Lincoln Ave

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

  1. Allison Anderson, MS, RD, LDNRegistered Dietitian1952030603
  2. Cristina Arceo, MS RDN LDN IBCLCRegistered Dietitian1194504563
  3. Margaret BickMental Health Counselor1700751773
  4. Kelly FurrNutrition Education Nutritionist1306671789
  5. Cristal Medina, MS, RDN, LDNRegistered Dietitian1700423688
  6. Janice Merkle, RNRegistered Nurse1154063873

Verify Amelia O'Brien-Combs in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck 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
Find 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.

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Bills Medicare through one group practice

  1. Nourish, Inc.Austin, TX

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

Amelia O'Brien-Combs among 2,870 registered dietitian records in Illinois

Amelia O'Brien-Combs, MPH, RDN is one of 2,870 registered dietitian records with a practice address in Illinois. 8% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 66% of them.

  • NPI issued2021 · 66% of these records are older, 29% newer
  • In a Medicare fileYes · 8% of these records are
  • In the CMS Doctors and Clinicians fileYes · 9% of these records are
  • Graduated2019 · median 2014 among the 269 with a school on file
  • Record last updated2021 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 133V00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

935 registered dietitian records list a practice address in Chicago

They are 935 of the 63,379 NPPES records with a practice address in Chicago, and 2,870 registered dietitian records in Illinois.

All 2,870 in Illinois → Every provider in Chicago → Registered Dietitian nationwide →

The 8 registered dietitian records with the nearest ZIP codes

  1. Rebecca Balinnang, MS, RD, LDNChicago, IL 606131326350737
  2. Linda Boyer-Samuels, MS, RD, CSSD, LDNChicago, IL 606131053876946
  3. Amy Casper, RDChicago, IL 606131124299987
  4. Emily Cutler, MS, RD, LDNChicago, IL 606131376867713
  5. Catherine D'Andrea, RD, LDNChicago, IL 606131174794135
  6. Sarah Hasler, RDChicago, IL 606131942830252
  7. Karen Jaseckas, RD, LDNChicago, IL 606131033380803
  8. Jasmina Markovic, RDChicago, IL 606131730431776

Common questions

What is Amelia O'Brien-Combs, MPH, RDN's NPI number?

Amelia O'Brien-Combs, MPH, RDN's National Provider Identifier (NPI) is 1437815594, issued on Nov 12, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Amelia O'Brien-Combs, MPH, RDN located?

The NPPES record lists a practice address at 3921 N Lincoln Ave, Chicago, IL, 60613. Phone: (872) 216-7870. Providers update this record themselves, so call before visiting.

How can I verify Amelia O'Brien-Combs, MPH, RDN's license?

Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

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.

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

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.