RONALD J GLAS MD
NPI 1720075484
Family Medicine in Naperville, IL

Q: What is Ronald Glas's NPI number?

The NPI number for Ronald Glas is 1720075484. It was assigned to this individual provider in the NPPES registry on September 28, 2005.

Q: What is Ronald Glas's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Ronald Glas was last updated on February 23, 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.

Active since September 28, 2005PECOS EnrolledAccepts Medicare Assignment

91.35/100

CMS Quality Rating

1247 RICKERT DR, STE 201, NAPERVILLE, IL 60540(630) 357-7979(630) 357-1047 Get Directions Write a Review

NPPES record last updated: February 23, 2021. Verified against the NPPES registry weekly; last sync: November 08, 2026.

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About Ronald J Glas Md NPPES

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

RONALD J GLAS MD (NPI 1720075484) is an individual family medicine provider in Naperville, Illinois, licensed in Illinois (036098149) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS, is affiliated with Copley Memorial Hospital, and is a graduate of Northwestern University Feinberg Medical School (1996).

NPPES Registry Identity

NPI1720075484

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameRONALD J GLASCredential: MD

Location Address1247 RICKERT DR, STE 201Naperville, IL 60540-1008

Mailing Address1247 Rickert Dr, Ste 201Naperville, IL 60540-1008 · (630) 357-7979 · Fax (630) 357-1047

Phone(630) 357-7979

Fax(630) 357-1047

Sole ProprietorNo

Medical School CMSNorthwestern University Feinberg Medical SchoolGraduated 1996

Enumeration DateSeptember 28, 2005

Last NPPES UpdateFebruary 23, 2021

NPPES CertifiedFebruary 23, 2021

✔ NPI 1720075484 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 · 036098149

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.

1247 RICKERT DR, Naperville, IL 60540

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Other Identifiers 2

Medicaid036098149 1IL

Other2220936IL · Bcbs

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, 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 and accepts Medicare assignment

Ronald J Glas Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID840327110

PECOS Enrollment IDI20100416000797

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

Medicare enrollment records show Ronald Glas reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Edward Health Ventures

0.6 mi

Family Medicine

1828 BAY SCOTT CIR, STE 112
Naperville, IL 60540

Reassigned Medicare billing, Illinois enrollment
561 clinicians in this Medicare group

NPI 1699193003 (630) 420-1500

Endeavor Health Medical Group

33 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 12

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 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.

590 services293 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.

257 services257 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

230 services35 patients

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.

110 services91 patients

Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 99439

Chronic Care Management services involve regular check-ins with healthcare professionals to manage two or more chronic conditions. It includes an additional 20 minutes of clinical staff time per month, directed by a healthcare professional, to ensure optimal health management.

92 services18 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

55 services35 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

39 services39 patients

Influenza vaccine split virus, preservative free 90662

The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.

38 services38 patients

Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit G0438

An annual wellness visit is a yearly appointment with your doctor to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's an opportunity to discuss your health status and goals and get a plan tailored for you.

19 services19 patients

Transitional care management services for problem of at least moderate complexity 99495

Transitional care management services focus on coordinating and managing your care after you leave the hospital. For moderate complexity problems, this involves managing your medications, arranging further treatments, and ensuring you have the necessary follow-ups.

18 services15 patients

Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment G0402

An Initial Preventive Physical Examination, also known as a "Welcome to Medicare" visit, is a one-time, face-to-face visit during your first 12 months of Medicare enrollment. It includes a review of your health, as well as education and counseling about preventive services and further screenings.

18 services18 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

14 services14 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Copley Memorial Hospital

Acute Care Hospitals · Aurora, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140029

Location2000 Ogden AvenueAurora, IL 60504 · Kane County

Emergency services Birthing friendly

Swedish Hospital

Acute Care Hospitals · Chicago, IL

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140114

Location5145 N California AveChicago, IL 60625 · Cook County

Emergency services Birthing friendly

Elmhurst Memorial Hospital

Acute Care Hospitals · Elmhurst, IL

4/5 CMS rating

OwnershipProprietary

CMS Certification Number140200

Location155 East Brush Hill RoadElmhurst, IL 60126 · Du Page County

Emergency services Birthing friendly

Edward Hospital

Acute Care Hospitals · Naperville, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140231

Location801 South WashingtonNaperville, IL 60540 · Du Page County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60540 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

$93.02 typical visit price

range $59.81 – $181.38

Typical copayment $23.25 (range $14.95 – $45.34)

Most-billed visit code 99203

Established Patient

$105.07 typical visit price

range $19.15 – $147.12

Typical copayment $26.26 (range $4.78 – $36.78)

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

Quality

82.71

Promoting Interoperability

100

Improvement Activities

Referred Medical Equipment & Supplies CMS DME claims 6

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

18 suppliers42 claims109 services$6.25 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

7 suppliers13 claims19 services$1.13 avg. paid by Medicare

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

6 suppliers13 claims13 services$34.34 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

5 suppliers12 claims68 services$1.82 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

1 supplier12 claims12 services$61.89 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

1 supplier12 claims12 services$185.34 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 8

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

MRS. LORI LEE GILMOUR R. PH.

Pharmacist

1247 RICKERT DR, SUITE #100
NAPERVILLE, IL 60540

Dupage County (630) 355-6400

ALYSSA LEA PAPUGA DO

Family Medicine

1247 RICKERT DR, SUITE 201
NAPERVILLE, IL 60540

Dupage County (630) 357-7979

ANDREW J LUNARDINI

Pharmacist

1247 RICKERT DR
NAPERVILLE, IL 60540

Dupage County (630) 355-6400

DR. KATHRYN ANN WALKER MD

Family Medicine

1247 RICKERT DR, STE 201
NAPERVILLE, IL 60540

Dupage County (630) 357-7979

DR. SCOTT M KASZUBA MD

Otolaryngology

1247 RICKERT DR
NAPERVILLE, IL 60540

Dupage County (630) 420-2323

DR. MEGAN M ROAKE AUD.

Audiologist

1247 RICKERT DR
NAPERVILLE, IL 60540

Dupage County (630) 456-7671

MARTIN AVENUE PHARMACY INC

Pharmacy (Community/Retail Pharmacy)

1247 RICKERT DR, STE 100
NAPERVILLE, IL 60540

Dupage County (630) 355-6400

JONATHAN THOMAS GIBSON

Family Medicine

1247 RICKERT DR, SUITE 201
NAPERVILLE, IL 60540

Dupage County (630) 357-7979

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 Ronald Glas's NPI number?

The NPI number for Ronald Glas is 1720075484. It was assigned to this individual provider in the NPPES registry on September 28, 2005.

Where is Ronald Glas located?

Ronald Glas practices at 1247 Rickert Dr Ste 201, Naperville, IL 60540. The listed phone number is (630) 357-7979.

What is Ronald Glas's specialty?

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

Is Ronald Glas enrolled in Medicare?

Yes. Ronald Glas is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Ronald Glas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ronald Glas reassigns Medicare benefits to 2 organizations: Edward Health Ventures (Naperville, 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 Ronald Glas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ronald Glas accept?

Health plans from Ambetter Health and Oscar Health list Ronald Glas 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.

Is Ronald Glas affiliated with any hospitals?

According to CMS data, Ronald Glas is affiliated with Copley Memorial Hospital, Swedish Hospital, Elmhurst Memorial Hospital and Edward Hospital.

When was this NPI record last updated?

The NPPES record for Ronald Glas was last updated on February 23, 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.