1. Home
  2. Directory
  3. Illinois
  4. Oak Park
  5. Family Medicine
  6. NPI Profile

KATHERINE D LYNCH MD
NPI 1821038720
Family Medicine in Oak Park, IL

Active since June 08, 2006PECOS Enrolled
91.35/100
CMS Quality Rating
1100 LAKE ST STE 230, OAK PARK, IL 60301(331) 221-9001(331) 221-2759 Get Directions Write a Review

NPPES record last updated: April 9, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 9, 2021, Jul 14, 2020, Dec 26, 2019 (3 updates tracked since 2019).

About Katherine D Lynch Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KATHERINE D LYNCH MD (NPI 1821038720) is an individual family medicine provider in Oak Park, Illinois, licensed in Illinois (036089584) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1821038720
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameKATHERINE D LYNCHCredential: MD
Location Address1100 LAKE ST STE 230Oak Park, IL 60301-1095
Mailing Address4201 Winfield Rd Fl 4, Centralized ServicesWarrenville, IL 60555 · (331) 221-6377 · Fax (331) 221-2357
Phone(331) 221-9001
Fax(331) 221-2759
Sole ProprietorNo
Enumeration DateJune 8, 2006
Last NPPES UpdateApril 9, 20213 updates tracked since enumeration
NPPES CertifiedApril 9, 2021
✔ NPI 1821038720 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in IL · 036089584
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
1100 LAKE ST STE 230, Oak Park, IL 60301
Open in Google Maps ↗

Other Identifiers 1

Medicaid036089584IL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Katherine D Lynch Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Katherine Lynch reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Elmhurst Memorial Healthcare
Same address
Multi-Specialty
1100 LAKE ST, #230
Oak Park, IL 60302
  • Reassigned Medicare billing, Illinois enrollment
  • 240 clinicians in this Medicare group
NPI 1760692362 (630) 993-5676
Pcc Community Wellness Center
1.4 mi
Federally Qualified Health Center (FQHC)
14 LAKE ST
Oak Park, IL 60302
  • Reassigned Medicare billing, Illinois enrollment
  • 221 clinicians in this Medicare group
NPI 1871516799 (708) 383-0113
Endeavor Health Medical Group
14 mi
Allergy & Immunology
1000 CENTRAL ST
Evanston, IL 60201
  • Reassigned Medicare billing, Illinois enrollment
  • 4,841 clinicians in this Medicare group
NPI 1497701882 (847) 570-5235

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
34 services26 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
27 services27 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
22 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60301 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

91.35/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.71
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ELIZABETH M MATHEW MD
Family Medicine
1100 LAKE ST STE 230
OAK PARK, IL 60301
Cook County (331) 221-9001
DR. MARY C HUTTON MD
Family Medicine
1100 LAKE ST STE 230
OAK PARK, IL 60301
Cook County (331) 221-9001
IDA NESSA AHMADY DO
Family Medicine
1100 LAKE ST STE 230
OAK PARK, IL 60301
Cook County (331) 221-9001
DON J WILLIAMS MD
Internal Medicine
1100 LAKE ST STE 230
OAK PARK, IL 60301
Cook County (331) 221-9001
TERESA SMITH LCSW
Social Worker (Clinical)
1100 LAKE ST STE 230
OAK PARK, IL 60301
Cook County (630) 646-7047
COLLEEN M WEILER D.O.
Family Medicine
1100 LAKE ST STE 230
OAK PARK, IL 60301
Cook County (331) 221-9001
RAFAEL ALEJANDRO TORRES MD
Family Medicine
1100 LAKE ST STE 230
OAK PARK, IL 60301
Cook County (331) 221-9001
FORREST JAMES ROBINSON DO
Family Medicine
1100 LAKE ST STE 230
OAK PARK, IL 60301
Cook County (331) 221-9001

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Katherine Lynch's NPI number?

The NPI number for Katherine Lynch is 1821038720. It was assigned to this individual provider in the NPPES registry on June 8, 2006.

Where is Katherine Lynch located?

Katherine Lynch practices at 1100 Lake St Ste 230, Oak Park, IL 60301. The listed phone number is (331) 221-9001.

What is Katherine Lynch's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Katherine Lynch enrolled in Medicare?

Yes. Katherine Lynch is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Katherine Lynch's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Lynch reassigns Medicare benefits to 3 organizations: Elmhurst Memorial Healthcare (Oak Park, IL), Pcc Community Wellness Center (Oak Park, IL) and Endeavor Health Medical Group (Evanston, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Katherine Lynch's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Katherine Lynch accept?

Health plans from Oscar Health list Katherine Lynch as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Katherine Lynch was last updated on April 9, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.