WILLIAM S VELASQUEZ M. D.
NPI 1346201175
Internal Medicine - Hematology & Oncology in Corpus Christi, TX

Q: What is William Velasquez's NPI number?

The NPI number for William Velasquez is 1346201175. It was assigned to this individual provider in the NPPES registry on March 31, 2006.

Q: What is William Velasquez's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Q: When was this NPI record last updated?

The NPPES record for William Velasquez was last updated on March 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 March 31, 2006PECOS EnrolledAccepts Medicare Assignment

77.7/100

CMS Quality Rating

7121 S PADRE ISLAND DR, SUITE 102-101,119, CORPUS CHRISTI, TX 78412(361) 696-6000(361) 992-4120 Get Directions Write a Review

NPPES record last updated: March 26, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 26, 2026, Mar 18, 2026, May 26, 2020 and 1 more (4 updates tracked since 2020).

On this page

About William S Velasquez M. D. NPPES

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

WILLIAM S VELASQUEZ M. D. (NPI 1346201175) is an individual hematology & oncology provider in Corpus Christi, Texas, licensed in Texas (E8218) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Memorial Hermann Hospital System, and maintains 18 additional practice locations.

NPPES Registry Identity

NPI1346201175

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameWILLIAM S VELASQUEZCredential: M. D.

Location Address7121 S PADRE ISLAND DR, SUITE 102-101,119Corpus Christi, TX 78412-4938

Mailing AddressPo Box 676638Dallas, TX 75267-6638

Phone(361) 696-6000

Fax(361) 992-4120

Sole ProprietorNo

Medical School CMSOtherGraduated 1968

Enumeration DateMarch 31, 2006

Last NPPES UpdateMarch 26, 20264 updates tracked since enumeration

NPPES CertifiedMarch 26, 2026

✔ NPI 1346201175 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in TX · E8218

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Also ListedInternal Medicine · Medical OncologyTaxonomy 207RX0202X · License E8218 (TX)

7121 S PADRE ISLAND DR, Corpus Christi, TX 78412

Open in Google Maps ↗

Secondary Practice Locations 18

Location 127700 Northwest Freeway, Suite 400,425Cypress, TX 77433-6767 · Phone (832) 377-3260 · Fax (888) 506-5887

Location 210405 Katy Fwy Ste 150EHouston, TX 77024-1165 · Phone (713) 722-9660 · Fax (713) 722-9664

Location 317520 W Grand Pkwy S Ste 460Sugar Land, TX 77479-4983 · Phone (281) 491-5511 · Fax (281) 491-5513

Location 411920 Astoria Blvd Ste 150Houston, TX 77089-6097 · Phone (281) 481-6688 · Fax (281) 481-0870

Location 57789 Southwest Fwy Ste 460Houston, TX 77074-1841 · Phone (713) 778-0300 · Fax (713) 778-0303

Location 69150 Main St Ste A3Houston, TX 77025-3848 · Phone (713) 630-8181 · Fax (713) 838-9708

Location 72130 W Holcombe Blvd Fl 10Houston, TX 77030-3306 · Phone (713) 600-0900 · Fax (713) 600-0070

Location 810405 Katy Fwy Ste 120Houston, TX 77024-1121 · Phone (832) 333-1474 · Fax (832) 333-1475

Location 913215 Dotson Rd Ste 340Houston, TX 77070-4535 · Phone (281) 477-8600 · Fax (281) 477-8577

Location 107737 Southwest Fwy, Suite 575Houston, TX 77074-1807 · Phone (713) 778-0300 · Fax (713) 778-0303

Location 111631 North Loop W Ste 410Houston, TX 77008-1530 · Phone (713) 802-9000 · Fax (713) 802-2701

Location 12925 Gessner Road, Suite 600,650Houston, TX 77024-2645 · Phone (713) 827-9525 · Fax (713) 468-3561

Location 1318955 N Memorial Dr Ste 530Humble, TX 77338-4269 · Phone (346) 362-1670 · Fax (346) 362-1675

Location 1423960 Katy Fwy Ste 325Katy, TX 77494-0886 · Phone (281) 578-0201 · Fax (281) 578-0217

Location 152555 Gulf Fwy S Ste 700League City, TX 77573-6742 · Phone (832) 827-8002 · Fax (832) 827-8003

Location 163333 Bayshore Blvd Ste 320Pasadena, TX 77504-1950 · Phone (832) 856-8965 · Fax (832) 856-8966

Location 171920 Country Place Pkwy Ste 370Pearland, TX 77584-1962 · Phone (832) 333-1400 · Fax (832) 333-1499

Location 18802 Enterprise Blvd Ste 808Rockport, TX 78382-4346 · Phone (361) 696-6000 · Fax (361) 992-4120

Other Identifiers 10

Medicaid116202609TX

Medicaid116202610TX

Other10036584TX · Amerigroup

Other2322957TX · Blue Link

Medicaid116202608TX

Other8P0571TX · Bluechoice

Medicaid116202607TX

Other5592436Aetna

Other4653339Aetna

Other000299TX · Mhhnp

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections 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

William S Velasquez 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 ID244298800

PECOS Enrollment IDI20041229000339

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 21

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.

Injection, darbepoetin alfa, 1 microgram (non-esrd use) J0881

Darbepoetin alfa injection is a medication used to treat anemia (low red blood cell count) often caused by chronic kidney disease or chemotherapy. It works by stimulating your body to produce more red blood cells, helping to increase your energy and well-being.

24,000 services15 patients

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml Q9967

Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.

2,300 services17 patients

Injection, palonosetron hcl, 25 mcg J2469

Palonosetron HCL is an injection used to prevent nausea and vomiting caused by chemotherapy. It works by blocking a natural substance (serotonin) in the body that can cause vomiting. This helps improve your comfort during cancer treatment.

710 services11 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

562 services149 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.

377 services136 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

151 services23 patients

Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less 96367

This procedure involves injecting fluids or medication directly into your vein. It's used for treatment, prevention, or diagnosis. An additional sequential infusion may be given within an hour if needed. This helps to ensure the medicine is distributed effectively in your body.

121 services13 patients

Injection of additional new drug or substance into vein 96375

This procedure involves introducing a new medication or substance into your bloodstream via a vein. It's typically done using a small needle. The substance can help treat various conditions or assist in diagnostic procedures. It's generally safe and monitored by professionals.

98 services11 patients

Administration of chemotherapy into vein, 1 hour or less 96413

Chemotherapy is a treatment that uses drugs to destroy cancer cells. When administered into a vein, it's often through an IV. This procedure usually lasts 1 hour or less. You may feel a slight pinch as the needle is inserted, but it's generally painless.

98 services14 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.

67 services52 patients

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.

54 services15 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

25 services11 patients

Stool analysis for blood, by peroxidase activity 82272

A stool analysis for blood, by peroxidase activity, is a test to detect blood in your stool. This test helps identify bleeding in the digestive tract. It involves collecting a stool sample, which is then checked for the presence of blood using a chemical reaction.

19 services19 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

19 services19 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.

19 services19 patients

Ct scan of abdomen and pelvis with contrast 74177

A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.

17 services13 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.

17 services17 patients

Ct scan of chest with contrast 71260

A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.

16 services13 patients

Blood creatinine level 82565

A blood creatinine level test measures the amount of creatinine in your blood. Creatinine is a waste product that your body produces when it uses energy. High levels may indicate that your kidneys aren't working properly. This test is often used to monitor kidney health.

14 services12 patients

Nuclear medicine study from skull base to mid-thigh with ct scan 78815

A nuclear medicine study from skull base to mid-thigh with a CT scan involves using a small amount of radioactive material and CT imaging to examine body tissues and organs. This helps detect any abnormalities by providing detailed images of the body's internal structure.

12 services12 patients

Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries A9552

Fluorodeoxyglucose F-18 FDG is a radioactive drug used in PET scans. It helps doctors see how your tissues and organs are functioning. The drug is given in a specific dose, up to 45 millicuries, depending on your body size and the type of scan.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Memorial Hermann Hospital System

Acute Care Hospitals · Houston, TX

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450184

Location1635 North Loop WestHouston, TX 77008 · Harris County

Emergency services Birthing friendly

Oakbend Medical Center

Acute Care Hospitals · Richmond, TX

2/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number450330

Location1705 Jackson StRichmond, TX 77469 · Fort Bend County

Emergency services Birthing friendly

Memorial Hermann Memorial City Hospital

Acute Care Hospitals · Houston, TX

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450610

Location921 GessnerHouston, TX 77024 · Harris County

Emergency services Birthing friendly

Houston Methodist Sugarland Hospital

Acute Care Hospitals · Sugar Land, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450820

Location16655 Southwest FreewaySugar Land, TX 77479 · Fort Bend County

Emergency services Birthing friendly

Memorial Hermann Sugar Land Hospital

Acute Care Hospitals · Sugar Land, TX

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450848

Location17500 W Grand Parkway SouthSugar Land, TX 77479 · Fort Bend County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78412 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

$166.88 typical visit price

range $54.84 – $166.88

Typical copayment $41.72 (range $13.71 – $41.72)

Most-billed visit code 99205

Established Patient

$97.05 typical visit price

range $17.52 – $136.11

Typical copayment $24.26 (range $4.38 – $34.02)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

77.7/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

70.59

Promoting Interoperability

Improvement Activities

Cost

53.55

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.

Capecitabine, oral, 500 mg J8521

Treatment-Treatment - Miscellaneous · category RX029N

1 supplier14 claims784 services$0.74 avg. paid by Medicare

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511

Treatment-Chemotherapy · category RH012N

1 supplier11 claims11 services$18.96 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.

JAMES MICHAEL NEFF M.D.

Internal Medicine

7121 S PADRE ISLAND DR
CORPUS CHRISTI, TX 78412

Nueces County (361) 696-6200

THOMAS-SPANN CLINIC, P.A.

Clinical Medical Laboratory

7121 S PADRE ISLAND DR, STE 300
CORPUS CHRISTI, TX 78412

Nueces County (361) 696-6200

ANNA HAYES BAER MD

Obstetrics & Gynecology (Maternal & Fetal Medicine)

7121 S PADRE ISLAND DR
CORPUS CHRISTI, TX 78412

Nueces County (361) 694-6054

DANIELLE ALICIA INMAN MD

Obstetrics & Gynecology

7121 S PADRE ISLAND DR, SUITE 302
CORPUS CHRISTI, TX 78412

Nueces County (361) 851-5000

MRS. LEIGHANNE GLAZENER MD

Obstetrics & Gynecology

7121 S PADRE ISLAND DR, SUITE 302
CORPUS CHRISTI, TX 78412

Nueces County (361) 851-5000

DR. FABRICIO JENARO ZUNIGA MD

Family Medicine

7121 S PADRE ISLAND DR, STE 300
CORPUS CHRISTI, TX 78412

Nueces County (361) 696-6043

DR. OREL MICHAEL EVERETT M.D.

Family Medicine

7121 S PADRE ISLAND DR, SUITE #300
CORPUS CHRISTI, TX 78412

Nueces County (361) 696-6200

MIGUEL A. BERASTAIN, M.D., P.A.

Orthopaedic Surgery

7121 S PADRE ISLAND DR, #106
CORPUS CHRISTI, TX 78412

Nueces County (361) 994-5151

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 William Velasquez's NPI number?

The NPI number for William Velasquez is 1346201175. It was assigned to this individual provider in the NPPES registry on March 31, 2006.

Where is William Velasquez located?

William Velasquez practices at 7121 S Padre Island Dr Suite 102-101,119, Corpus Christi, TX 78412. The listed phone number is (361) 696-6000.

What is William Velasquez's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is William Velasquez enrolled in Medicare?

Yes. William Velasquez 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 William Velasquez accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 4 other insurers list William Velasquez 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 William Velasquez affiliated with any hospitals?

According to CMS data, William Velasquez is affiliated with Memorial Hermann Hospital System, Oakbend Medical Center, Memorial Hermann Memorial City Hospital, Houston Methodist Sugarland Hospital and Memorial Hermann Sugar Land Hospital.

When was this NPI record last updated?

The NPPES record for William Velasquez was last updated on March 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.