DR. THOMAS JOHN GIANIS II M.D.
NPI 1467895375
Surgery - Vascular Surgery in San Antonio, TX

Q: What is Thomas Gianis's NPI number?

The NPI number for Thomas Gianis is 1467895375. It was assigned to this individual provider in the NPPES registry on April 10, 2013.

Q: What is Thomas Gianis's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Q: When was this NPI record last updated?

The NPPES record for Thomas Gianis was last updated on November 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since April 10, 2013PECOS EnrolledAccepts Medicare Assignment

0/100

CMS Quality Rating

603 E AMBER ST STE 101, SAN ANTONIO, TX 78221(210) 610-7283(210) 812-5938 Get Directions Write a Review

NPPES record last updated: November 29, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Nov 29, 2021, Jul 27, 2021, Aug 1, 2019 (3 updates tracked since 2019).

On this page

About Dr. Thomas John Gianis Ii M.d. NPPES

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

DR. THOMAS JOHN GIANIS II M.D. (NPI 1467895375) is an individual vascular surgery provider in San Antonio, Texas, licensed in Texas (T2607) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, is affiliated with Methodist Hospital Stone Oak, and maintains a secondary practice location in Charlottesville.

NPPES Registry Identity

NPI1467895375

Entity TypeIndividualMale

Primary Taxonomy2086S0129X

Provider Legal NameDR. THOMAS JOHN GIANIS IICredential: M.D.

Location Address603 E AMBER ST STE 101San Antonio, TX 78221-2456

Mailing AddressPo Box 91257San Antonio, TX 78209-9098 · (210) 610-7283 · Fax (210) 812-5938

Phone(210) 610-7283

Fax(210) 812-5938

Sole ProprietorNo

Medical School CMSOtherGraduated 2013

Enumeration DateApril 10, 2013

Last NPPES UpdateNovember 29, 20213 updates tracked since enumeration

NPPES CertifiedNovember 29, 2021

✔ NPI 1467895375 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code2086S0129X

License✔ Licensed in TX · T2607

Definition

A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.

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

603 E AMBER ST STE 101, San Antonio, TX 78221

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Secondary Practice Location 1

Location 11215 Lee StCharlottesville, VA 22908-0001 · Phone (434) 924-2150

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, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Thomas John Gianis 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 ID8022311521

PECOS Enrollment IDI20210803001478

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 Reassignment

Medicare enrollment records show Thomas Gianis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Medical Vein Clinic

19 mi

Diagnostic Radiology

18831 MEISNER DR
San Antonio, TX 78258

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

NPI 1538696471 (210) 622-8000

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 10

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 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.

94 services84 patients

Ultrasound study of arm and leg arteries 93922

An ultrasound study of arm and leg arteries is a non-invasive procedure that uses sound waves to create images of your arteries. It helps in checking blood flow, identifying blockages, or detecting other abnormalities in your arteries.

59 services56 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.

38 services18 patients

Measurement of lymphedema extracellular fluid 93702

The measurement of lymphedema extracellular fluid is a non-invasive procedure used to assess fluid buildup in tissues, often due to lymphatic system issues. It helps to monitor and manage conditions like lymphedema effectively.

37 services31 patients

Ultrasound of one leg arteries or artery grafts 93926

An ultrasound of leg arteries or artery grafts is a non-invasive test using sound waves to create images of your blood vessels. This helps doctors assess blood flow, identify blockages, and monitor the health of grafts.

33 services28 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.

32 services32 patients

Hospital Affiliations CMS Care Compare

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

Methodist Hospital Stone Oak

Acute Care Hospitals · San Antonio, TX

4/5 CMS rating

OwnershipProprietary

CMS Certification Number670055

Location1139 E Sonterra Blvd,San Antonio, TX 78258 · Bexar County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78221 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

$84.92 typical visit price

range $54.84 – $166.88

Typical copayment $21.23 (range $13.71 – $41.72)

Most-billed visit code 99203

Established Patient

$68.55 typical visit price

range $17.52 – $136.11

Typical copayment $17.13 (range $4.38 – $34.02)

Most-billed visit code 99213

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.

0/100

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

Individually scored

Quality

Improvement Activities

Other Providers at the Same Location NPPES 8

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

SHERRY MICHELE MULLINS PA-C

Physician Assistant