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DR. SIMON M YU M.D.
NPI 1235331687
Internal Medicine in Saint Louis, MO

Active since June 05, 2007Opted out of Medicare · through Feb 24, 2027
11710 OLD BALLAS RD, 205, SAINT LOUIS, MO 63141(314) 432-7802(314) 432-1971 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Simon M Yu M.d. NPPES

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

DR. SIMON M YU M.D. (NPI 1235331687) is an individual internal medicine provider in Saint Louis, Missouri, licensed in Missouri (R2F28) and active in the NPI registry since June 2007. He has opted out of Medicare through February 24, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1235331687
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. SIMON M YUCredential: M.D.
Location Address11710 OLD BALLAS RD, 205Saint Louis, MO 63141-7076
Mailing Address11710 Old Ballas Rd, 205Saint Louis, MO 63141-7076 · (314) 432-7802 · Fax (314) 432-1971
Phone(314) 432-7802
Fax(314) 432-1971
Sole ProprietorYes
Enumeration DateJune 5, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1235331687 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MO · R2F28
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.
11710 OLD BALLAS RD, Saint Louis, MO 63141
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Simon M Yu M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from February 24, 2003 through February 24, 2027.

Opt-Out Effective DateFebruary 24, 2003
Opt-Out In Effect ThroughFebruary 24, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63141 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
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
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 12

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

MISSOURI EYE ASSOCIATES LLC
Ophthalmology
11710 OLD BALLAS RD, SUITE 102
SAINT LOUIS, MO 63141
St. Louis County (314) 569-2020
DR. ROBERT JOSEPH OLK MD
Ophthalmology
11710 OLD BALLAS RD, SUITE 102
SAINT LOUIS, MO 63141
St. Louis County (314) 569-2020
SARA E. WRIGHT PHD
Psychologist
11710 OLD BALLAS RD, SUITE 111
CREVE COEUR, MO 63141
St. Louis County (314) 991-1095
CATHERINE B. MACKIE M.A., L.P.C.
Counselor (Professional)
11710 OLD BALLAS RD, SUITE 110
SAINT LOUIS, MO 63141
St. Louis County (314) 567-1958
DR. THOMAS M MATTHES DDS
Dentist (Prosthodontics)
11710 OLD BALLAS RD, SUITE 200
SAINT LOUIS, MO 63141
St. Louis County (314) 989-9777
THOMAS M MATTHES DDS PC
Clinic/Center (Dental)
11710 OLD BALLAS RD, SUITE 200
SAINT LOUIS, MO 63141
St. Louis County (314) 989-9777
DR. JOHN ARTHUR MCGREAL JR. OD
Optometrist
11710 OLD BALLAS RD, SUITE 102
SAINT LOUIS, MO 63141
St. Louis County (314) 569-2020
RETINA CENTER PC
Ophthalmology
11710 OLD BALLAS RD, SUITE 102
SAINT LOUIS, MO 63141
St. Louis County (314) 569-2020

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 Simon Yu's NPI number?

The NPI number for Simon Yu is 1235331687. It was assigned to this individual provider in the NPPES registry on June 5, 2007.

Where is Simon Yu located?

Simon Yu practices at 11710 Old Ballas Rd 205, Saint Louis, MO 63141. The listed phone number is (314) 432-7802.

What is Simon Yu's specialty?

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

Is Simon Yu enrolled in Medicare?

No. Simon Yu has opted out of Medicare through February 24, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Simon Yu was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.