DR. CARLOS M YU II M.D.
NPI 1417934894
Psychiatry & Neurology - Neurology in Saint Louis, MO

Q: What is Carlos Yu's NPI number?

The NPI number for Carlos Yu is 1417934894. It was assigned to this individual provider in the NPPES registry on December 28, 2005.

Q: What is Carlos Yu's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Q: When was this NPI record last updated?

The NPPES record for Carlos Yu was last updated on September 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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 December 28, 2005PECOS EnrolledAccepts Medicare Assignment

11155 DUNN RD, SUITE 109N, SAINT LOUIS, MO 63136(314) 953-8799(314) 953-8798 Get Directions Write a Review

NPPES record last updated: September 26, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Carlos M Yu Ii M.d. NPPES

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

DR. CARLOS M YU II M.D. (NPI 1417934894) is an individual neurology provider in Saint Louis, Missouri, licensed in Missouri (102312) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Alton Memorial Hospital, and is a graduate of Other (1982).

NPPES Registry Identity

NPI1417934894

Entity TypeIndividualMale

Primary Taxonomy2084N0400X

Provider Legal NameDR. CARLOS M YU IICredential: M.D.

Location Address11155 DUNN RD, SUITE 109NSaint Louis, MO 63136-6150

Mailing Address670 Mason Ridge Center Dr, Suite 300Saint Louis, MO 63141-8573 · (314) 953-8799 · Fax (314) 953-8798

Phone(314) 953-8799

Fax(314) 953-8798

Sole ProprietorNo

Medical School CMSOtherGraduated 1982

Enumeration DateDecember 28, 2005

Last NPPES UpdateSeptember 26, 2025

NPPES CertifiedSeptember 26, 2025

✔ NPI 1417934894 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians

Taxonomy Code2084N0400X

Licenses✔ Licensed in MO · 102312✔ Licensed in IL · 036090006

Definition

A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.

11155 DUNN RD, Saint Louis, MO 63136

Open in Google Maps ↗

Other Identifiers 1

Medicaid203623004MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.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

Dr. Carlos M Yu Ii 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 ID6901845817

PECOS Enrollment IDI20050510000438, I20100910000375

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 Carlos Yu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Fairview Heights Medical Group, Sc

16 mi

Internal Medicine

670 MASON RIDGE CENTER DR, STE 300
Saint Louis, MO 63141

Reassigned Medicare billing, Illinois and Missouri enrollments
Also billed through NPI 1679503668 (Missouri)
507 clinicians in this Medicare group

NPI 1811392210 (314) 996-7644

Physician Groups Lc

16 mi

Multi-Specialty

670 MASON RIDGE CENTER DR STE 300
Saint Louis, MO 63141

Reassigned Medicare billing, Missouri enrollment
611 clinicians in this Medicare group

NPI 1285664268 (314) 996-7644

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 9

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 moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

146 services108 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

108 services103 patients

Measurement of brain wave activity (eeg), awake and drowsy 95816

Measurement of brain wave activity, also known as an EEG, is a non-invasive test that records electrical patterns in your brain. This procedure is done when you're awake and drowsy to understand how your brain functions during different states of consciousness.

46 services44 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

46 services46 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

37 services26 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

29 services28 patients

Hospital Affiliations CMS Care Compare 4

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

Alton Memorial Hospital

Acute Care Hospitals · Alton, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140002

LocationOne Memorial DriveAlton, IL 62002 · Madison County

Emergency services Birthing friendly

Barnes Jewish Hospital

Acute Care Hospitals · Saint Louis, MO

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number260032

LocationOne Barnes-Jewish Hospital PlazaSaint Louis, MO 63110 · St. Louis City County

Emergency services Birthing friendly

Missouri Baptist Medical Center

Acute Care Hospitals · Town And Country, MO

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260108

Location3015 N Ballas RdTown And Country, MO 63131 · St. Louis County

Emergency services Birthing friendly

Christian Hospital Northeast

Acute Care Hospitals · Saint Louis, MO

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260180

Location11133 Dunn RoadSaint Louis, MO 63136 · St. Louis County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63136 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 20

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

MIDWEST ACUTE CARE CONSULTANTS, PC

Internal Medicine (Critical Care Medicine)

11155 DUNN RD, STE: 315E
SAINT LOUIS, MO 63136

St. Louis County (314) 355-7500

MS. MICHELLE LYNN HEFFRON AHCNS

Clinical Nurse Specialist (Medical-Surgical)

11155 DUNN RD
SAINT LOUIS, MO 63136

St. Louis County (314) 355-3003

MARY WEST R.N.

Registered Nurse

11155 DUNN RD, STE 304E
SAINT LOUIS, MO 63136

St. Louis County (314) 741-0911

MS. CHRISTINE FRANCES KUEHNEL ACNP

Nurse Practitioner (Gerontology)

11155 DUNN RD, DIV SUR ACCS, STE 108N
SAINT LOUIS, MO 63136

St. Louis County (314) 362-5298

SUBASH JOSHI, MD

Specialist

11155 DUNN RD, SUITE 105N
SAINT LOUIS, MO 63136

St. Louis County (314) 355-0811

RICK HUMMEL MD PC

Internal Medicine

11155 DUNN RD, 201N
ST LOUIS, MO 63136

St. Louis County (314) 741-1400

DR. GEORGE M KICHURA M.D.

Internal Medicine (Interventional Cardiology)

11155 DUNN RD, SUITE 304E
SAINT LOUIS, MO 63136

St. Louis County (314) 741-0911

LISA HAWLEY FNP

Nurse Practitioner (Family)

11155 DUNN RD, STE 205E
SAINT LOUIS, MO 63136

St. Louis County (314) 355-1660

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 Carlos Yu's NPI number?

The NPI number for Carlos Yu is 1417934894. It was assigned to this individual provider in the NPPES registry on December 28, 2005.

Where is Carlos Yu located?

Carlos Yu practices at 11155 Dunn Rd Suite 109N, Saint Louis, MO 63136. The listed phone number is (314) 953-8799.

What is Carlos Yu's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Carlos Yu enrolled in Medicare?

Yes. Carlos Yu 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 Carlos Yu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Carlos Yu reassigns Medicare benefits to 2 organizations: Fairview Heights Medical Group, Sc (Saint Louis, MO) and Physician Groups Lc (Saint Louis, MO). 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 Carlos Yu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Carlos Yu accept?

Health plans from UnitedHealthcare list Carlos Yu 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 Carlos Yu affiliated with any hospitals?

According to CMS data, Carlos Yu is affiliated with Alton Memorial Hospital, Barnes Jewish Hospital, Missouri Baptist Medical Center and Christian Hospital Northeast.

When was this NPI record last updated?

The NPPES record for Carlos Yu was last updated on September 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.