Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. CYNTHIA ANN WOLLENSCHLAGER M.D.
NPI 1124086087
Internal Medicine - Infectious Disease in Downers Grove, IL

Q: What is Cynthia Wollenschlager's NPI number?

The NPI number for Cynthia Wollenschlager is 1124086087. It was assigned to this individual provider in the NPPES registry on May 2, 2006.

Q: What is Cynthia Wollenschlager's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Active since May 02, 2006PECOS EnrolledAccepts Medicare Assignment

3825 HIGHLAND AVE, TOWER I, SUITE 3F, DOWNERS GROVE, IL 60515(630) 971-9275(630) 971-9293 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 29, 2026, Jun 20, 2018 (2 updates tracked since 2018).

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About Dr. Cynthia Ann Wollenschlager M.d. NPPES

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

DR. CYNTHIA ANN WOLLENSCHLAGER M.D. (NPI 1124086087) is an individual infectious disease provider in Downers Grove, Illinois, licensed in Illinois (036-065297) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Central Dupage Hospital, and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (1981).

NPPES Registry Identity

NPI1124086087

Entity TypeIndividualFemale

Primary Taxonomy207RI0200X

Provider Legal NameDR. CYNTHIA ANN WOLLENSCHLAGERCredential: M.D.

Location Address3825 HIGHLAND AVE, TOWER I, SUITE 3FDowners Grove, IL 60515-1552

Mailing Address3825 Highland Ave, Tower I, Suite 3fDowners Grove, IL 60515-1552 · (630) 971-9275 · Fax (630) 971-9293

Phone(630) 971-9275

Fax(630) 971-9293

Sole ProprietorYes

Medical School CMSLoyola University Of Chicago, Stritch School Of MedicineGraduated 1981

Enumeration DateMay 2, 2006

Last NPPES UpdateSeptember 29, 20262 updates tracked since enumeration

✔ NPI 1124086087 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RI0200X

License✔ Licensed in IL · 036-065297

Definition

An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

Also ListedInternal MedicineTaxonomy 207R00000X · License 036-065297 (IL)

3825 HIGHLAND AVE, Downers Grove, IL 60515

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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

Dr. Cynthia Ann Wollenschlager M.d. 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 ID4981996196

PECOS Enrollment IDI20201211000489

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 Cynthia Wollenschlager reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Dupage Immediate Care, Ltd

3.2 mi

Urgent Care

1S210 SUMMIT AVE
Oakbrook Terrace, IL 60181

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

NPI 1114262326 (630) 282-6002

Primary Health Care LLC

5.0 mi

Primary Care

980 PLAINFIELD RD
Willowbrook, IL 60527

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

NPI 1053933184 (630) 541-6679

Urgent Medical Care LLC

5.0 mi

Urgent Care

980 PLAINFIELD RD
Willowbrook, IL 60527

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

NPI 1699397729 (630) 541-6679

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 17

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.

316 services184 patients

Injection, dexamethasone sodium phosphate, 1 mg J1100

Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.

189 services20 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

147 services147 patients

Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) 87880

A detection test by immunoassay for Group A Strep is a quick procedure to identify a bacterial infection in your throat. It involves taking a throat swab and applying it to a test strip, which changes color if Strep bacteria are present.

138 services107 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

86 services49 patients

Injection, ketorolac tromethamine, per 15 mg J1885

Ketorolac tromethamine is a medication administered through injection, often used to manage moderate to severe pain. Each 15 mg dose helps to reduce hormones causing inflammation and pain in the body. It is not recommended for long-term use.

82 services22 patients

Injection, ceftriaxone sodium, per 250 mg J0696

Ceftriaxone sodium is an antibiotic injection used to treat a variety of bacterial infections. Each injection contains 250 mg of the medicine. It works by stopping the growth of bacteria in your body.

77 services19 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

58 services47 patients

Urinalysis, manual test 81002

A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.

42 services35 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

37 services32 patients

Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19), influenza virus types a and b, and respiratory syncytial virus 87637

This test identifies if you have COVID-19, influenza A or B, or respiratory syncytial virus. It uses a multiplex amplified probe technique, which amplifies and detects specific genetic material of the viruses, helping in accurate diagnosis.

21 services21 patients

Inhalation treatment for airway obstruction or sputum production 94640

Inhalation treatment, also known as nebulizer therapy, helps clear airway obstructions and reduce sputum production. It involves breathing in medication through a device, turning it into a mist. This can open up the airways, making breathing easier and helping to cough out mucus.

19 services17 patients

Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less 96367

This procedure involves injecting fluids or medication directly into your vein. It's used for treatment, prevention, or diagnosis. An additional sequential infusion may be given within an hour if needed. This helps to ensure the medicine is distributed effectively in your body.

18 services11 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

17 services14 patients

Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613

Albuterol is a medication used to treat breathing problems. It is administered as an inhalation solution through a device called DME (Durable Medical Equipment). The solution is FDA-approved and non-compounded. Each unit dose contains 1 mg of the medicine.

17 services16 patients

Diphtheria and tetanus vaccine (7 years or older) 90714

The Diphtheria and Tetanus vaccine is a preventive measure given to individuals aged 7 or older. It helps your body develop immunity to these serious diseases. The vaccine is typically administered as a shot in the arm or thigh. It's a crucial part of maintaining your health.

13 services13 patients

Administration of vaccine 90471

Administering a vaccine involves injecting a small, safe piece of a virus or bacteria into your body. This triggers your immune system to recognize and fight off the disease in the future. It's a vital tool in preventing serious illnesses and maintaining public health.

11 services11 patients

Hospital Affiliations CMS Care Compare

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

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140242

Location25 North Winfield RoadWinfield, IL 60190 · Du Page County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60515 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

$137.43 typical visit price

range $59.81 – $181.38

Typical copayment $34.35 (range $14.95 – $45.34)

Most-billed visit code 99204

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.

Other Providers at the Same Location NPPES 20

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

PETER MICHAEL KERWIN MD

Internal Medicine (Interventional Cardiology)

3825 HIGHLAND AVE, TOWER 2 SUITE 400
DOWNERS GROVE, IL 60515

Dupage County (630) 719-4799

BARRY SADEGI M.D.

Obstetrics & Gynecology (Maternal & Fetal Medicine)

3825 HIGHLAND AVE, 3B
DOWNERS GROVE, IL 60515

Dupage County (630) 434-9300

STEPHEN MICHAEL ROWLEY MD

Internal Medicine (Cardiovascular Disease)

3825 HIGHLAND AVE, TOWER 2 SUITE 400
DOWNERS GROVE, IL 60515

Dupage County (630) 719-4799

DR. KOTESWARA RAO BATCHU M.D.

Legal Medicine

3825 HIGHLAND AVE, SUITE 4B
DOWNERS GROVE, IL 60515

Dupage County (630) 963-4990

BARRY SADEGI, M.D., S.C.

Obstetrics & Gynecology

3825 HIGHLAND AVE, 3B
DOWNERS GROVE, IL 60515

Dupage County (630) 434-9300

DR. PAUL J WEST M.D.

Urology

3825 HIGHLAND AVE, SUITE 207
DOWNERS GROVE, IL 60515

Dupage County (630) 960-1498

MATTHEW OSCEOLA NORA MD

Internal Medicine (Clinical Cardiac Electrophysiology)

3825 HIGHLAND AVE, TOWER 2 SUITE 400
DOWNERS GROVE, IL 60515

Dupage County (630) 719-4799

ENSIGN MEDICAL INCORPORATED

Obstetrics & Gynecology

3825 HIGHLAND AVE, SUITE 3E
DOWNERS GROVE, IL 60515

Dupage County (630) 810-0358

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 Cynthia Wollenschlager's NPI number?

The NPI number for Cynthia Wollenschlager is 1124086087. It was assigned to this individual provider in the NPPES registry on May 2, 2006.

Where is Cynthia Wollenschlager located?

Cynthia Wollenschlager practices at 3825 Highland Ave Tower I, Suite 3F, Downers Grove, IL 60515. The listed phone number is (630) 971-9275.

What is Cynthia Wollenschlager's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Cynthia Wollenschlager enrolled in Medicare?

Yes. Cynthia Wollenschlager 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 Cynthia Wollenschlager's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Cynthia Wollenschlager reassigns Medicare benefits to 3 organizations: Dupage Immediate Care, Ltd (Oakbrook Terrace, IL), Primary Health Care LLC (Willowbrook, IL) and Urgent Medical Care LLC (Willowbrook, 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 Cynthia Wollenschlager's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Cynthia Wollenschlager affiliated with any hospitals?

According to CMS data, Cynthia Wollenschlager is affiliated with Northwestern Medicine Central Dupage Hospital.

When was this NPI record last updated?

The NPPES record for Cynthia Wollenschlager was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 33 days 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.