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DR. JOHN MIGUEL SIA MD
NPI 1912958281
Internal Medicine in Lincolnwood, IL

Active since May 12, 2006PECOS Enrolled
6641 N DOWAGIAC AVE, LINCOLNWOOD, IL 60712(847) 208-7995 Get Directions Write a Review

NPPES record last updated: October 5, 2010. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. John Miguel Sia Md NPPES

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

DR. JOHN MIGUEL SIA MD (NPI 1912958281) is an individual internal medicine provider in Lincolnwood, Illinois, licensed in Illinois (036-083555) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1912958281
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. JOHN MIGUEL SIACredential: MD
Location Address6641 N DOWAGIAC AVELincolnwood, IL 60712-3021
Mailing Address6641 N Dowagiac AveLincolnwood, IL 60712-3021 · (847) 208-7995
Phone(847) 208-7995
Sole ProprietorYes
Enumeration DateMay 12, 2006
Last NPPES UpdateOctober 5, 2010
✔ NPI 1912958281 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 036-083555
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.
6641 N DOWAGIAC AVE, Lincolnwood, IL 60712
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Other Identifiers 1

Medicare UPINF59844IL

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. John Miguel Sia 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 60712 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
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
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.

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 John Sia's NPI number?

The NPI number for John Sia is 1912958281. It was assigned to this individual provider in the NPPES registry on May 12, 2006.

Where is John Sia located?

John Sia practices at 6641 N Dowagiac Ave, Lincolnwood, IL 60712. The listed phone number is (847) 208-7995.

What is John Sia's specialty?

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

Is John Sia enrolled in Medicare?

Yes. John Sia is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for John Sia was last updated on October 5, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.