LEON L TUNG M.D.
NPI 1700171287
Internal Medicine - Critical Care Medicine in Webster, TX

Q: What is Leon Tung's NPI number?

The NPI number for Leon Tung is 1700171287. It was assigned to this individual provider in the NPPES registry on June 13, 2011.

Q: What is Leon Tung's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Q: When was this NPI record last updated?

The NPPES record for Leon Tung was last updated on April 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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 13, 2011PECOS EnrolledAccepts Medicare Assignment

200 BLOSSOM ST, WEBSTER, TX 77598(832) 632-6500(832) 632-9297 Get Directions Write a Review

NPPES record last updated: April 2, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Apr 2, 2026, Jan 10, 2025, Apr 2, 2020 (3 updates tracked since 2020).

On this page

About Leon L Tung M.d. NPPES

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

LEON L TUNG M.D. (NPI 1700171287) is an individual critical care medicine provider in Webster, Texas, licensed in Texas (S1719) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS, is affiliated with University Of Texas Medical Branch Galveston, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1700171287

Entity TypeIndividualMale

Primary Taxonomy207RC0200X

Provider Legal NameLEON L TUNGCredential: M.D.

Location Address200 BLOSSOM STWebster, TX 77598-4204

Mailing AddressPo Box 846098Dallas, TX 75284-6098 · (903) 324-6400

Phone(832) 632-6500

Fax(832) 632-9297

Sole ProprietorNo

Medical School CMSUniversity Of Texas Medical Branch At GalvestonGraduated 2011

Enumeration DateJune 13, 2011

Last NPPES UpdateApril 2, 20263 updates tracked since enumeration

NPPES CertifiedApril 2, 2026

✔ NPI 1700171287 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RC0200X

License✔ Licensed in TX · S1719

Definition

An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License S1719 (TX)

Also ListedHospitalistTaxonomy 208M00000X · License MD.206583 (LA)

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

200 BLOSSOM ST, Webster, TX 77598

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Secondary Practice Locations 3

Location 11514 Jefferson HwyNew Orleans, LA 70121-2429 · Phone (504) 842-4096

Location 2619 S Fleishel Ave Ste 100Tyler, TX 75701-2004 · Phone (903) 606-2830

Location 33201 S Loop 256Palestine, TX 75801-6901 · Phone (903) 661-7057

Other Identifiers 5

Other923301TX · Medicare

OtherP02409704TX · Medicare Rail Road

Medicaid05459821MP

Medicaid2148940LA

MedicaidINTERNLA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Community Health Choice and more.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

Leon L Tung 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 ID7810111457

PECOS Enrollment IDI20200204000821

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 Leon Tung reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Utmb Faculty Group Practice

26 mi

General Practice

301 UNIVERSITY BLVD
Galveston, TX 77555

Reassigned Medicare billing, Texas enrollment
2,222 clinicians in this Medicare group

NPI 1942241146 (409) 772-2222

University Of Texas Southwestern Medical Center At Dallas

163 mi

Thoracic Surgery (Cardiothoracic Vascular Surgery)

4900 MUELLER BLVD
Austin, TX 78723

Reassigned Medicare billing, Texas enrollment
5,299 clinicians in this Medicare group

NPI 1871729376 (512) 454-1110

Mother Frances Hospital Jacksonville

165 mi

Critical Access

2026 S JACKSON ST
Jacksonville, TX 75766

Reassigned Medicare billing, Texas enrollment
409 clinicians in this Medicare group

NPI 1952306672 (903) 541-4500

Christus Trinity Clinic Texas

193 mi

Family Medicine

520 DOUGLAS BLVD
Tyler, TX 75702

Reassigned Medicare billing, Texas enrollment
2,745 clinicians in this Medicare group

NPI 1285684225 (903) 315-4119

Northeast Texas Intensivists, PLLC

205 mi

Critical Care Medicine

700 E MARSHALL AVE
Longview, TX 75601

Reassigned Medicare billing, Texas enrollment
70 clinicians in this Medicare group

NPI 1497536676 (903) 315-2000

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 13

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

393 services145 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.

311 services88 patients

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.

271 services165 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

226 services122 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.

75 services73 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.

62 services62 patients

Test to determine lung volumes using sensors 94726

This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.

58 services58 patients

Test to examine how well the lungs exchange gases 94729

This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.

58 services58 patients

Home sleep test (hst) with type iii portable monitor, unattended; minimum of 4 channels: 2 respiratory movement/airflow, 1 ecg/heart rate and 1 oxygen saturation G0399

A Home Sleep Test (HST) with a Type III Portable Monitor is an unattended test that records your breathing, heart rate, and oxygen levels during sleep. This test uses a minimum of 4 channels to monitor these parameters, helping to diagnose sleep disorders.

58 services58 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.

54 services54 patients

Sleep study in sleep lab with continuous airway pressure (6 years or older) 95811

A sleep study in a sleep lab with continuous airway pressure is a test for individuals aged 6 and above. It monitors your sleep patterns to check for disorders like sleep apnea. Continuous airway pressure helps keep your airways open while you sleep, improving your breathing.

37 services36 patients

Test for exercise-induced lung stress 94618

An exercise-induced lung stress test assesses how your lungs respond to physical activity. During the test, you'll exercise on a treadmill or stationary bike while your heart rate, breathing, blood pressure, and oxygen levels are monitored. This helps identify any abnormal lung responses to exercise.

22 services22 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

20 services19 patients

Hospital Affiliations CMS Care Compare 3

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

University Of Texas Medical Branch Galveston

Acute Care Hospitals · Galveston, TX

3/5 CMS rating

OwnershipGovernment - State

CMS Certification Number450018

Location301 University BoulevardGalveston, TX 77555 · Galveston County

Emergency services Birthing friendly

Christus Mother Frances Hospital

Acute Care Hospitals · Tyler, TX

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450102

Location800 East DawsonTyler, TX 75701 · Smith County

Emergency services Birthing friendly

Christus Mother Frances Hospital Sulphur Springs

Acute Care Hospitals · Sulphur Springs, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450236

Location115 Airport RdSulphur Springs, TX 75482 · Hopkins County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77598 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

$134.06 typical visit price

range $58.24 – $176.98

Typical copayment $33.51 (range $14.56 – $44.24)

Most-billed visit code 99204

Established Patient

$102.71 typical visit price

range $18.60 – $143.93

Typical copayment $25.67 (range $4.65 – $35.98)

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 21

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

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

4 suppliers13 claims13 services$42.16 avg. paid by Medicare

Full face mask used with positive airway pressure device, each A7030

DME-Other DME · category DE001N

7 suppliers28 claims28 services$104.27 avg. paid by Medicare

Face mask interface, replacement for full face mask, each A7031

DME-Other DME · category DE001N

7 suppliers32 claims81 services$40.72 avg. paid by Medicare

Cushion for use on nasal mask interface, replacement only, each A7032

DME-Other DME · category DE001N

4 suppliers13 claims58 services$24.55 avg. paid by Medicare

Pillow for use on nasal cannula type interface, replacement only, pair A7033

DME-Other DME · category DE001N

7 suppliers20 claims104 services$17.84 avg. paid by Medicare

Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034

DME-Other DME · category DE001N

9 suppliers31 claims31 services$67.48 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

10 suppliers38 claims38 services$19.62 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

9 suppliers45 claims45 services$19.03 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

10 suppliers74 claims318 services$2.73 avg. paid by Medicare

Water chamber for humidifier, used with positive airway pressure device, replacement, each A7046

DME-Other DME · category DE001N

6 suppliers21 claims21 services$12.76 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

2 suppliers21 claims21 services$20.53 avg. paid by Medicare

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466

DME-Other DME · category DE005N

3 suppliers27 claims27 services$917.29 avg. paid by Medicare

Respiratory assist device, bi-level pressure capability, without backup rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) E0470

DME-Other DME · category DE001N

4 suppliers41 claims41 services$113.44 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

5 suppliers79 claims97 services$17.03 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

4 suppliers29 claims33 services$7.03 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

10 suppliers78 claims89 services$45.72 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

5 suppliers42 claims44 services$111.44 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

2 suppliers13 claims13 services$36.96 avg. paid by Medicare

Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme J7620

DME-Drugs Administered Through DME · category DG006N

7 suppliers26 claims3,240 services$0.10 avg. paid by Medicare

Budesonide, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, up to 0.5 mg J7626

DME-Drugs Administered Through DME · category DG000N

3 suppliers15 claims720 services$0.68 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

8 suppliers31 claims31 services$25.33 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 20

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

VALERIE NICOLE ESPINOZA RN

Registered Nurse (Emergency)

200 BLOSSOM ST
WEBSTER, TX 77598

Harris County (832) 632-7762

LUIGI TERMINELLA M.D.

Internal Medicine (Pulmonary Disease)

200 BLOSSOM ST
WEBSTER, TX 77598

Harris County (832) 632-6500

MATTHEW MAKOWSKI

Internal Medicine (Critical Care Medicine)

200 BLOSSOM ST
WEBSTER, TX 77598

Harris County (832) 632-6500

ZOE TRAMEL PILARES MD

Obstetrics & Gynecology

200 BLOSSOM ST
WEBSTER, TX 77598

Harris County (832) 505-3010

RACHEL ELIZABETH LAIRD M.D.

Internal Medicine

200 BLOSSOM ST
WEBSTER, TX 77598

Harris County (832) 632-6500

HAZEL ALEJANDRIA NP

Nurse Practitioner (Acute Care)

200 BLOSSOM ST
WEBSTER, TX 77598

Harris County (409) 266-0580

ALLYSON CLAIRE MEANS

Physician Assistant

200 BLOSSOM ST
WEBSTER, TX 77598

Harris County (832) 632-6500

MARK BOCADO NP

Nurse Practitioner (Family)

200 BLOSSOM ST
WEBSTER, TX 77598

Harris County (281) 525-7360

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 Leon Tung's NPI number?

The NPI number for Leon Tung is 1700171287. It was assigned to this individual provider in the NPPES registry on June 13, 2011.

Where is Leon Tung located?

Leon Tung practices at 200 Blossom St, Webster, TX 77598. The listed phone number is (832) 632-6500.

What is Leon Tung's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Leon Tung enrolled in Medicare?

Yes. Leon Tung 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 Leon Tung's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Leon Tung reassigns Medicare benefits to 5 organizations: Utmb Faculty Group Practice (Galveston, TX), University Of Texas Southwestern Medical Center At Dallas (Austin, TX), Mother Frances Hospital Jacksonville (Jacksonville, TX), Christus Trinity Clinic Texas (Tyler, TX) and Northeast Texas Intensivists, PLLC (Longview, TX). 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 Leon Tung's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Leon Tung accept?

Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Community Health Choice, Oscar Insurance Company and WellPoint list Leon Tung 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 Leon Tung affiliated with any hospitals?

According to CMS data, Leon Tung is affiliated with University Of Texas Medical Branch Galveston, Christus Mother Frances Hospital and Christus Mother Frances Hospital Sulphur Springs.

When was this NPI record last updated?

The NPPES record for Leon Tung was last updated on April 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.