MARY THEOKTISTO
NPI 1619358934
Internal Medicine - Infectious Disease in Lakeway, TX

Active since June 11, 2015PECOS EnrolledAccepts Medicare Assignment
100 MEDICAL PKWY, LAKEWAY, TX 78738(512) 571-5000 Get Directions Write a Review

NPPES record last updated: August 20, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Aug 20, 2020, Jul 9, 2020 (2 updates tracked since 2020).

About Mary Theoktisto NPPES

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

MARY THEOKTISTO (NPI 1619358934) is an individual infectious disease provider in Lakeway, Texas, licensed in Texas (S3323) and active in the NPI registry since June 2015. She is enrolled in Medicare PECOS, is affiliated with Baylor Scott & White Medical Center - Round Rock, and is a graduate of Other (2015).

NPPES Registry Identity

NPI1619358934
Entity TypeIndividualFemale
Primary Taxonomy207RI0200X
Provider Legal NameMARY THEOKTISTO
Location Address100 MEDICAL PKWYLakeway, TX 78738-5621
Mailing AddressPo Box 844658Dallas, TX 75284-4658 · (254) 724-8800
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateJune 11, 2015
Last NPPES UpdateAugust 20, 20202 updates tracked since enumeration
NPPES CertifiedAugust 20, 2020
NPI 1619358934 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License Licensed in TX · S3323
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
100 MEDICAL PKWY, Lakeway, TX 78738

Accepted 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

Mary Theoktisto 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 ID9537593967
PECOS Enrollment IDI20191218000921
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 8

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.
141 services82 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.
104 services90 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.
100 services56 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.
100 services41 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.
38 services25 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 services25 patients

Hospital Affiliations CMS Care Compare 5

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

Baylor Scott & White Medical Center - Round Rock

Acute Care Hospitals · Round Rock, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number670034
Location300 University BlvdRound Rock, TX 78664 · Williamson County
Emergency services Birthing friendly

Baylor Scott & White Medical Center - Marble Falls

Acute Care Hospitals · Marble Falls, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number670108
Location810 W Highway 71Marble Falls, TX 78654 · Burnet County
Emergency services Birthing friendly

Baylor Scott & White Medical Center Pflugerville

Acute Care Hospitals · Pflugerville, TX
OwnershipVoluntary non-profit - Private
CMS Certification Number670128
Location2600 East Pflugerville ParkwayPflugerville, TX 78660 · Travis County
Emergency services

Baylor Scott & White Medical Center - Buda

Acute Care Hospitals · Buda, TX
OwnershipVoluntary non-profit - Private
CMS Certification Number670131
Location5330 Overpass Road Suite 110Buda, TX 78610 · Hays County
Emergency services

Baylor Scott & White Medical Center- Austin

Acute Care Hospitals · Austin, TX
OwnershipVoluntary non-profit - Private
CMS Certification Number670136
Location5245 W Us 290Austin, TX 78735 · Travis County

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78738 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
$131.95 typical visit price
range $57.88 – $174.00
Typical copayment $32.98 (range $14.47 – $43.50)
Most-billed visit code 99204
Established Patient
$101.65 typical visit price
range $18.88 – $142.23
Typical copayment $25.41 (range $4.72 – $35.55)
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.

Internal Medicine (Infectious Disease)
100 MEDICAL PKWY
LAKEWAY, TX 78738
Emergency Medicine
100 MEDICAL PKWY
LAKEWAY, TX 78738
Physician Assistant
100 MEDICAL PKWY
LAKEWAY, TX 78738
Anesthesiology (Pain Medicine)
100 MEDICAL PKWY
LAKEWAY, TX 78738
Anesthesiology
100 MEDICAL PKWY
LAKEWAY, TX 78738
Orthopaedic Surgery (Orthopaedic Surgery of the Spine)
100 MEDICAL PKWY
LAKEWAY, TX 78738
Radiology (Diagnostic Radiology)
100 MEDICAL PKWY
LAKEWAY, TX 78738
Hospitalist
100 MEDICAL PKWY
LAKEWAY, TX 78738

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 Mary Theoktisto's NPI number?

The NPI number for Mary Theoktisto is 1619358934. It was assigned to this individual provider in the NPPES registry on June 11, 2015.

Where is Mary Theoktisto located?

Mary Theoktisto practices at 100 Medical Pkwy, Lakeway, TX 78738. The listed phone number is (512) 571-5000.

What is Mary Theoktisto's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Mary Theoktisto enrolled in Medicare?

Yes. Mary Theoktisto 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 Mary Theoktisto accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Oscar Insurance Company and UnitedHealthcare list Mary Theoktisto 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 Mary Theoktisto affiliated with any hospitals?

According to CMS data, Mary Theoktisto is affiliated with Baylor Scott & White Medical Center - Round Rock, Baylor Scott & White Medical Center - Marble Falls, Baylor Scott & White Medical Center Pflugerville, Baylor Scott & White Medical Center - Buda and Baylor Scott & White Medical Center- Austin.

When was this NPI record last updated?

The NPPES record for Mary Theoktisto was last updated on August 20, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.