GUOYU LING M.D.
NPI 1104112994
Internal Medicine - Endocrinology, Diabetes & Metabolism in Saint Louis, MO

Q: What is Guoyu Ling's NPI number?

The NPI number for Guoyu Ling is 1104112994. It was assigned to this individual provider in the NPPES registry on June 21, 2011.

Q: What is Guoyu Ling's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Q: When was this NPI record last updated?

The NPPES record for Guoyu Ling was last updated on May 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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 June 21, 2011PECOS EnrolledAccepts Medicare Assignment

1225 S GRAND BLVD FL 2, SAINT LOUIS, MO 63104(314) 977-6157(314) 977-5177 Get Directions Write a Review

NPPES record last updated: May 23, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 23, 2025, Jan 5, 2021, Aug 11, 2016 (3 updates tracked since 2016).

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About Guoyu Ling M.d. NPPES

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

GUOYU LING M.D. (NPI 1104112994) is an individual endocrinology, diabetes & metabolism provider in Saint Louis, Missouri, licensed in Missouri (2014021719) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS, is affiliated with Good Samaritan Regional Hlth Center, and is a graduate of Other (1994).

NPPES Registry Identity

NPI1104112994

Entity TypeIndividualMale

Primary Taxonomy207RE0101X

Provider Legal NameGUOYU LINGCredential: M.D.

Location Address1225 S GRAND BLVD FL 2Saint Louis, MO 63104-1016

Mailing Address1008 S Spring Ave Fl 2Saint Louis, MO 63110-2520 · (314) 977-8458 · Fax (314) 977-6797

Phone(314) 977-6157

Fax(314) 977-5177

Sole ProprietorNo

Medical School CMSOtherGraduated 1994

Enumeration DateJune 21, 2011

Last NPPES UpdateMay 23, 20253 updates tracked since enumeration

NPPES CertifiedMay 23, 2025

✔ NPI 1104112994 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians

Taxonomy Code207RE0101X

License✔ Licensed in MO · 2014021719

Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

Also ListedInternal MedicineTaxonomy 207R00000X · License 2014021719 (MO)

1225 S GRAND BLVD FL 2, Saint Louis, MO 63104

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Guoyu Ling 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 ID8224276357

PECOS Enrollment IDI20140807000538

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.

Areas of Expertise CMS Part B claims 7

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.

97 services66 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.

63 services30 patients

Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251

This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.

26 services17 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.

25 services24 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

23 services22 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

23 services22 patients

Hospital Affiliations CMS Care Compare 3

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

Good Samaritan Regional Hlth Center

Acute Care Hospitals · Mount Vernon, IL

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140046

Location1 Good Samaritan WayMount Vernon, IL 62864 · Jefferson County

Emergency services Birthing friendly

Memorial Hospital

Acute Care Hospitals · Belleville, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140185

Location4500 Memorial DriveBelleville, IL 62226 · St. Clair County

Emergency services Birthing friendly

Ssm Health Saint Louis University Hospital

Acute Care Hospitals · Saint Louis, MO

1/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number260105

Location3635 Vista AveSaint Louis, MO 63110 · St. Louis City County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63104 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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

10 suppliers15 claims45 services$6.46 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

7 suppliers52 claims52 services$184.47 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

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

DR. JOHN ELLIOTT SALOMONE MD

Internal Medicine (Allergy & Immunology)

1225 S GRAND BLVD FL 2
SAINT LOUIS, MO 63104

St. Louis City (314) 617-2355

KENTO SONODA M.D., A.A.H.I.V.S.

Family Medicine

1225 S GRAND BLVD FL 2
SAINT LOUIS, MO 63104

St. Louis City (314) 617-2510

DR. SANDEEP DHINDSA M.D.

Internal Medicine (Endocrinology, Diabetes & Metabolism)

1225 S GRAND BLVD FL 2
SAINT LOUIS, MO 63104

St. Louis City (314) 977-7330

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 Guoyu Ling's NPI number?

The NPI number for Guoyu Ling is 1104112994. It was assigned to this individual provider in the NPPES registry on June 21, 2011.

Where is Guoyu Ling located?

Guoyu Ling practices at 1225 S Grand Blvd Fl 2, Saint Louis, MO 63104. The listed phone number is (314) 977-6157.

What is Guoyu Ling's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Guoyu Ling enrolled in Medicare?

Yes. Guoyu Ling 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.

What insurance does Guoyu Ling accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 4 other insurers list Guoyu Ling 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 Guoyu Ling affiliated with any hospitals?

According to CMS data, Guoyu Ling is affiliated with Good Samaritan Regional Hlth Center, Memorial Hospital and Ssm Health Saint Louis University Hospital.

When was this NPI record last updated?

The NPPES record for Guoyu Ling was last updated on May 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.