FRANK MAHZARI MD
NPI 1841386125
Internal Medicine in Houston, TX

Active since October 05, 2006PECOS EnrolledAccepts Medicare Assignment
550 POST OAK BLVD STE 411, HOUSTON, TX 77027(832) 669-0111 Get Directions Write a Review

NPPES record last updated: December 27, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 27, 2022, Dec 12, 2022 (2 updates tracked since 2022).

About Frank Mahzari Md NPPES

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

FRANK MAHZARI MD (NPI 1841386125) is an individual internal medicine provider in Houston, Texas, licensed in Texas (L8817) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Hca Houston Healthcare Medical Center, and maintains a secondary practice location in Houston.

NPPES Registry Identity

NPI1841386125
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameFRANK MAHZARICredential: MD
Location Address550 POST OAK BLVD STE 411Houston, TX 77027-9410
Mailing Address550 Post Oak Blvd Ste 411Houston, TX 77027-9410 · (832) 669-0111
Sole ProprietorNo
Medical School CMSUniversity Of Texas Southwestern Medical School At DallasGraduated 2002
Enumeration DateOctober 5, 2006
Last NPPES UpdateDecember 27, 20222 updates tracked since enumeration
NPPES CertifiedDecember 27, 2022
NPI 1841386125 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in TX · L8817
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
550 POST OAK BLVD STE 411, Houston, TX 77027

Secondary Practice Location 1

Location 19900 Westpark Dr Ste 240Houston, TX 77063-5286 · Phone (713) 677-0137

Other Identifiers 2

Medicaid171990802TX
Medicaid171990801TX

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

Frank Mahzari 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 ID6901853217
PECOS Enrollment IDI20050407000811
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 4

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.
70 services25 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
69 services68 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.
67 services66 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.
31 services20 patients

Hospital Affiliations CMS Care Compare

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

Hca Houston Healthcare Medical Center

Acute Care Hospitals · Houston, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number450659
Location1313 Hermann DrHouston, TX 77004 · Harris County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77027 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 2

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

Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035
Other-Enteral and Parenteral · category OB006N
1 supplier12 claims372 services$4.54 avg. paid by Medicare
Enteral formula, nutritionally complete with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4150
Other-Enteral and Parenteral · category OB006N
1 supplier12 claims5,184 services$0.33 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

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

Internal Medicine
550 POST OAK BLVD STE 411
HOUSTON, TX 77027

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 Frank Mahzari's NPI number?

The NPI number for Frank Mahzari is 1841386125. It was assigned to this individual provider in the NPPES registry on October 5, 2006.

Where is Frank Mahzari located?

Frank Mahzari practices at 550 Post Oak Blvd Ste 411, Houston, TX 77027. The listed phone number is (832) 669-0111.

What is Frank Mahzari's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Frank Mahzari enrolled in Medicare?

Yes. Frank Mahzari 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 Frank Mahzari 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 3 other insurers list Frank Mahzari 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 Frank Mahzari affiliated with any hospitals?

According to CMS data, Frank Mahzari is affiliated with Hca Houston Healthcare Medical Center.

When was this NPI record last updated?

The NPPES record for Frank Mahzari was last updated on December 27, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.