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

MARY FRANCES KING MD
NPI 1649246729
Internal Medicine in Naperville, IL

Active since February 27, 2006PECOS Enrolled
1020 E OGDEN AVE, STE 115, NAPERVILLE, IL 60563(630) 717-8707 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mary Frances King Md NPPES

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

MARY FRANCES KING MD (NPI 1649246729) is an individual internal medicine provider in Naperville, Illinois and active in the NPI registry since February 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1649246729
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameMARY FRANCES KINGCredential: MD
Location Address1020 E OGDEN AVE, STE 115Naperville, IL 60563-8609
Mailing Address1860 Paysphere CirChicago, IL 60674-0018 · (630) 469-9200
Phone(630) 717-8707
Sole ProprietorNo
Enumeration DateFebruary 27, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1649246729 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1020 E OGDEN AVE, Naperville, IL 60563
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Frances King 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60563 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.

ZAIN INCORPORATED
Pharmacy (Community/Retail Pharmacy)
1020 E OGDEN AVE, SUITE 114
NAPERVILLE, IL 60563
Dupage County (630) 922-1100
DU PAGE MEDICAL GROUP LTD
Durable Medical Equipment & Medical Supplies
1020 E OGDEN AVE, STE 301
NAPERVILLE, IL 60563
Dupage County (630) 790-1221
MS. MOLLIE ELANA HOLMAN MSW
Social Worker (Clinical)
1020 E OGDEN AVE, SUITE 312
NAPERVILLE, IL 60563
Dupage County (217) 766-6488
DR. ASYA SEGALENE M.D.
Allergy & Immunology (Allergy)
1020 E OGDEN AVE, SUITE 205
NAPERVILLE, IL 60563
Dupage County (630) 852-4050
EDITH PIGNOTTI RN, CDE
Dietitian, Registered
1020 E OGDEN AVE, 304
NAPERVILLE, IL 60563
Dupage County (630) 364-7014
SAJANI JYOTINDRA PARIKH PT
Physical Therapist
1020 E OGDEN AVE
NAPERVILLE, IL 60563
Dupage County (331) 215-9820
DR. AUDREY GEANNOPOULOS M.D.
Internal Medicine
1020 E OGDEN AVE, 115
NAPERVILLE, IL 60563
Dupage County (630) 717-8707
ROBERT MICHAEL ALLAR MD
Ophthalmology (Retina Specialist)
1020 E OGDEN AVE, SUITE 210
NAPERVILLE, IL 60563
Dupage County (630) 717-1311

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 Mary King's NPI number?

The NPI number for Mary King is 1649246729. It was assigned to this individual provider in the NPPES registry on February 27, 2006.

Where is Mary King located?

Mary King practices at 1020 E Ogden Ave Ste 115, Naperville, IL 60563. The listed phone number is (630) 717-8707.

What is Mary King's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mary King enrolled in Medicare?

Yes. Mary King is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mary King was last updated on July 13, 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.