GIOVANNA ELIZABETH MARIANO MD
NPI 1265608293
Family Medicine in Tomball, TX

Active since April 30, 2008PECOS EnrolledAccepts Medicare Assignment
91.34/100
CMS Quality Rating
14211 FM 2920 RD STE 110, TOMBALL, TX 77377(281) 737-1910(281) 737-1911 Get Directions Write a Review

NPPES record last updated: January 6, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 6, 2025, Dec 17, 2023, Jun 5, 2017 (3 updates tracked since 2017).

About Giovanna Elizabeth Mariano Md NPPES

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

GIOVANNA ELIZABETH MARIANO MD (NPI 1265608293) is an individual family medicine provider in Tomball, Texas, licensed in Texas (Q0185) and active in the NPI registry since April 2008. She is enrolled in Medicare PECOS, is affiliated with Houston Methodist Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1265608293
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameGIOVANNA ELIZABETH MARIANOCredential: MD
Location Address14211 FM 2920 RD STE 110Tomball, TX 77377-5505
Mailing Address8022 Royal Crest CtSpring, TX 77379-4566 · (305) 213-0551
Fax(281) 737-1911
Sole ProprietorNo
Medical School CMSOtherGraduated 2004
Enumeration DateApril 30, 2008
Last NPPES UpdateJanuary 6, 20253 updates tracked since enumeration
NPPES CertifiedJanuary 6, 2025
NPI 1265608293 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses Licensed in TX · Q0185 Licensed in IL · 036129705
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
14211 FM 2920 RD STE 110, Tomball, TX 77377

Other Names 1

Former Name (1)Giovanna Elizabeth Chug Md

Secondary Practice Locations 2

Location 12255 E Mossy Oaks Rd Ste 320Spring, TX 77389-1812 · Phone (936) 266-2195
Location 28111 Cypresswood Dr Ste 103Spring, TX 77379-7180 · Phone (281) 205-8240

Other Identifiers 1

Medicaid036129705IL

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

Giovanna Elizabeth Mariano Md 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 ID9436306610
PECOS Enrollment IDI20140927000203
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 6

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.
178 services76 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
34 services34 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.
32 services23 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 services17 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.
12 services11 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
12 services12 patients

Hospital Affiliations CMS Care Compare 3

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

Houston Methodist Hospital

Acute Care Hospitals · Houston, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450358
Location6565 FanninHouston, TX 77030 · Harris County
Emergency services Birthing friendly

Houston Methodist Willowbrook Hospital

Acute Care Hospitals · Houston, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450844
Location18220 State Highway 249Houston, TX 77070 · Harris County
Emergency services Birthing friendly

Houston Methodist The Woodlands Hospital

Acute Care Hospitals · The Woodlands, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number670122
Location17201 Interstate 45 SouthThe Woodlands, TX 77385 · Montgomery County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77377 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
$90.40 typical visit price
range $58.24 – $176.98
Typical copayment $22.60 (range $14.56 – $44.24)
Most-billed visit code 99203
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.

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.

91.34/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality81.64
Promoting Interoperability89.13
Improvement Activities40

Other Providers at the Same Location NPPES

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

Family Medicine
14211 FM 2920 RD STE 110
TOMBALL, TX 77377

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 Giovanna Mariano's NPI number?

The NPI number for Giovanna Mariano is 1265608293. It was assigned to this individual provider in the NPPES registry on April 30, 2008. The provider is also known as Giovanna Elizabeth Chug MD.

Where is Giovanna Mariano located?

Giovanna Mariano practices at 14211 Fm 2920 Rd Ste 110, Tomball, TX 77377. The listed phone number is (281) 737-1910.

What is Giovanna Mariano's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Giovanna Mariano enrolled in Medicare?

Yes. Giovanna Mariano 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 Giovanna Mariano accept?

Health plans from Community Health Choice and Molina Healthcare list Giovanna Mariano 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 Giovanna Mariano affiliated with any hospitals?

According to CMS data, Giovanna Mariano is affiliated with Houston Methodist Hospital, Houston Methodist Willowbrook Hospital and Houston Methodist The Woodlands Hospital.

When was this NPI record last updated?

The NPPES record for Giovanna Mariano was last updated on January 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.