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

MEGAN ELIZABETH MIETELSKI M.D.
NPI 1184949216
Obstetrics & Gynecology in Naperville, IL

Q: What is Megan Mietelski's NPI number?

The NPI number for Megan Mietelski is 1184949216. It was assigned to this individual provider in the NPPES registry on March 31, 2010.

Q: What is Megan Mietelski's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Q: When was this NPI record last updated?

The NPPES record for Megan Mietelski was last updated on October 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.

Active since March 31, 2010PECOS EnrolledAccepts Medicare Assignment

120 SPALDING DR, NAPERVILLE, IL 60540(630) 369-7700(630) 369-7705 Get Directions Write a Review

NPPES record last updated: October 16, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 16, 2026, Feb 4, 2021, May 22, 2017 and 2 more (5 updates tracked since 2017).

On this page

About Megan Elizabeth Mietelski M.d. NPPES

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

MEGAN ELIZABETH MIETELSKI M.D. (NPI 1184949216) is an individual obstetrics & gynecology provider in Naperville, Illinois, licensed in Illinois (036142172) and active in the NPI registry since March 2010. She is enrolled in Medicare PECOS, is affiliated with Edward Hospital, and maintains a secondary practice location in Naperville.

NPPES Registry Identity

NPI1184949216

Entity TypeIndividualFemale

Primary Taxonomy207V00000X

Provider Legal NameMEGAN ELIZABETH MIETELSKICredential: M.D.

Location Address120 SPALDING DRNaperville, IL 60540-6508

Mailing Address2650 Ridge Ave Ste 1223Evanston, IL 60201-1700 · (847) 570-2040 · Fax (847) 733-5315

Phone(630) 369-7700

Fax(630) 369-7705

Sole ProprietorNo

Medical School CMSLoyola University Of Chicago, Stritch School Of MedicineGraduated 2010

Enumeration DateMarch 31, 2010

Last NPPES UpdateOctober 16, 20265 updates tracked since enumeration

NPPES CertifiedOctober 16, 2026

✔ NPI 1184949216 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207V00000X

Licenses✔ Licensed in IL · 036142172✔ Licensed in IN · 01073767A

Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

120 SPALDING DR, Naperville, IL 60540

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Secondary Practice Location 1

Location 110 Martin Ave Ste 100Naperville, IL 60540-6564 · Phone (630) 369-7700 · Fax (630) 369-7705

Other Identifiers 2

OtherF400368541IL · Medicare Ptan

Medicaid036142172IL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware, 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

Megan Elizabeth Mietelski 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 ID4880902493

PECOS Enrollment IDI20170314000836

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

Edward Health Ventures

Same address

Multi-Specialty

100 SPALDING DRIVE, STE 204
Naperville, IL 60540

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

NPI 1538450838 (630) 527-5800

Endeavor Health Medical Group

32 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

Franciscan Physician Network

101 mi

Urgent Care

1515 W DRAGOON TRL
Mishawaka, IN 46544

Reassigned Medicare billing, Indiana enrollment
1,396 clinicians in this Medicare group

NPI 1366879009 (574) 254-6253

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

Hospital Affiliations CMS Care Compare

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

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

$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

$74.38 typical visit price

range $19.15 – $147.12

Typical copayment $18.59 (range $4.78 – $36.78)

Most-billed visit code 99213

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.

JAMES R DAVIS MD

Specialist

120 SPALDING DR, SUITE 307
NAPERVILLE, IL 60540

Dupage County (630) 355-1102

SHEILA TREFTZ APN

Nurse Practitioner (Acute Care)

120 SPALDING DR, SUITE 401
NAPERVILLE, IL 60540

Dupage County (630) 416-4501

JOSEPH KASH MD

Internal Medicine (Hematology & Oncology)

120 SPALDING DR, SUITE 111
NAPERVILLE, IL 60540

Dupage County (630) 527-3788

MRS. WENDY ANN PAWELSKI LCPC,CADC

Counselor (Professional)

120 SPALDING DR, MOB II SUITE 408
NAPERVILLE, IL 60540

Dupage County (630) 527-5484

EDWARD HEALTH VENTURES

Psychiatry & Neurology (Neurology)

120 SPALDING DR, STE 207
NAPERVILLE, IL 60540

Dupage County (630) 527-7730

KRISTIN R. WATKINS APN-CNP

Nurse Practitioner

120 SPALDING DR
NAPERVILLE, IL 60540

Dupage County (630) 369-7700

JAMES W WIELGOLEWSKI MD

Surgery

120 SPALDING DR, SUITE 100
NAPERVILLE, IL 60540

Dupage County (630) 961-0423

HASSAN PERVEZ M.D.

Internal Medicine (Hematology & Oncology)

120 SPALDING DR, SUITE 111
NAPERVILLE, IL 60540

Dupage County (630) 527-3788

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 Megan Mietelski's NPI number?

The NPI number for Megan Mietelski is 1184949216. It was assigned to this individual provider in the NPPES registry on March 31, 2010.

Where is Megan Mietelski located?

Megan Mietelski practices at 120 Spalding Dr, Naperville, IL 60540. The listed phone number is (630) 369-7700.

What is Megan Mietelski's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Megan Mietelski enrolled in Medicare?

Yes. Megan Mietelski 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 Megan Mietelski's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Megan Mietelski reassigns Medicare benefits to 3 organizations: Edward Health Ventures (Naperville, IL), Endeavor Health Medical Group (Evanston, IL) and Franciscan Physician Network (Mishawaka, IN). 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 Megan Mietelski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Megan Mietelski accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Megan Mietelski 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 Megan Mietelski affiliated with any hospitals?

According to CMS data, Megan Mietelski is affiliated with Edward Hospital.

When was this NPI record last updated?

The NPPES record for Megan Mietelski was last updated on October 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.