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DR. MAHWASH KASSI M.D.
NPI 1497034789
Internal Medicine - Cardiovascular Disease in Houston, TX

Active since August 04, 2011PECOS EnrolledAccepts Medicare Assignment
6550 FANNIN ST, SMITH TOWER 1001, HOUSTON, TX 77030(713) 441-1100 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 21, 2022, Mar 19, 2019, Aug 15, 2018 and 4 more (7 updates tracked since 2017).

About Dr. Mahwash Kassi M.d. NPPES

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

DR. MAHWASH KASSI M.D. (NPI 1497034789) is an individual cardiovascular disease provider in Houston, Texas, licensed in Texas (R7239) and active in the NPI registry since August 2011. She is enrolled in Medicare PECOS, is affiliated with Houston Methodist Hospital, and maintains a secondary practice location in Rochester.

NPPES Registry Identity

NPI1497034789
Entity TypeIndividualFemale
Primary Taxonomy207RC0000X
Provider Legal NameDR. MAHWASH KASSICredential: M.D.
Location Address6550 FANNIN ST, SMITH TOWER 1001Houston, TX 77030
Mailing Address6550 Fannin St Ste 1901Houston, TX 77030-2719 · (713) 441-1100 · Fax (713) 790-2643
Phone(713) 441-1100
Sole ProprietorNo
Medical School CMSOtherGraduated 2010
Enumeration DateAugust 4, 2011
Last NPPES UpdateJuly 21, 20227 updates tracked since enumeration
✔ NPI 1497034789 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
Licenses✔ Licensed in TX · R7239✔ Licensed in MN · 62088
Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

Also ListedInternal MedicineTaxonomy 207R00000X · License BP10040645 (TX)
Also ListedInternal Medicine · Advanced Heart Failure and Transplant CardiologyTaxonomy 207RA0001X · License R7239 (TX), 62088 (MN)
6550 FANNIN ST, Houston, TX 77030
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Secondary Practice Location 1

Location 1200 1st St SWRochester, MN 55905-2717 · Phone (507) 284-2511

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Molina Healthcare.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

Dr. Mahwash Kassi 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 ID9739456385
PECOS Enrollment IDI20180720002869
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 9

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.
151 services62 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
125 services40 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.
89 services59 patients
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152
This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.
51 services43 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.
38 services16 patients
Biopsy of heart muscle 93505
A biopsy of the heart muscle is a procedure where a small piece of heart tissue is taken for examination. This helps doctors identify heart diseases or abnormalities. The procedure involves inserting a thin tube through a vein and into the heart, under local anesthesia.
22 services14 patients

Hospital Affiliations CMS Care Compare 5

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 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

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 West Hospital

Acute Care Hospitals · Houston, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number670077
Location18500 Katy FreewayHouston, TX 77094 · 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 77030 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
$72.62 typical visit price
range $18.60 – $143.93
Typical copayment $18.15 (range $4.65 – $35.98)
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.

Referred Medical Equipment & Supplies CMS DME claims 10

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

Supplies for maintenance of non-insulin drug infusion catheter, per week (list drugs separately) A4221
DME-Other DME · category DE017N
1 supplier36 claims36 services$18.34 avg. paid by Medicare
Infusion supplies for external drug infusion pump, per cassette or bag (list drugs separately) A4222
DME-Medical/Surgical Supplies · category DA000N
1 supplier36 claims75 services$35.27 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier12 claims12 services$15.17 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$67.07 avg. paid by Medicare
Injection, dobutamine hydrochloride, per 250 mg J1250
Treatment-Injections and Infusions (nononcologic) · category RI000N
1 supplier12 claims99 services$4.76 avg. paid by Medicare
Injection, milrinone lactate, 5 mg J2260
Treatment-Injections and Infusions (nononcologic) · category RI026N
1 supplier17 claims700 services$1.38 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.

MEGAN MCCLANAHAN
Student in an Organized Health Care Education/Training Program
6550 FANNIN ST
HOUSTON, TX 77030
Harris County (713) 441-5155
MARIANNE CARLSON PSYD
Psychologist (Clinical)
6550 FANNIN ST
HOUSTON, TX 77030
Harris County (346) 248-2040
MARIE MCLAIN P.A.
Physician Assistant
6550 FANNIN ST, SMITH TOWER, SUITE 1901
HOUSTON, TX 77030
Harris County (713) 441-1100
DALIA MOGHAZY MD
Obstetrics & Gynecology
6550 FANNIN ST
HOUSTON, TX 77030
Harris County (713) 790-3311
YVONNE I-FANG CHU M.D.
Ophthalmology
6550 FANNIN ST, SUITE 1501
HOUSTON, TX 77030
Harris County (713) 798-6100
DR. SAM JERRY LONG D.D.S.
Dentist (General Practice)
6550 FANNIN ST, STE 2103
HOUSTON, TX 77030
Harris County (713) 797-0846
THOMAS W KNIGHT MD
Internal Medicine
6550 FANNIN ST, SMITH 1101
HOUSTON, TX 77030
Harris County (713) 441-0006
DR. JOOHI JIMENEZ-SHAHED M.D.
Psychiatry & Neurology (Neurology)
6550 FANNIN ST, SUITE 1801
HOUSTON, TX 77030
Harris County (713) 798-5975

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 Mahwash Kassi's NPI number?

The NPI number for Mahwash Kassi is 1497034789. It was assigned to this individual provider in the NPPES registry on August 4, 2011.

Where is Mahwash Kassi located?

Mahwash Kassi practices at 6550 Fannin St Smith Tower 1001, Houston, TX 77030. The listed phone number is (713) 441-1100.

What is Mahwash Kassi's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Mahwash Kassi enrolled in Medicare?

Yes. Mahwash Kassi 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 Mahwash Kassi accept?

Health plans from Molina Healthcare list Mahwash Kassi 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 Mahwash Kassi affiliated with any hospitals?

According to CMS data, Mahwash Kassi is affiliated with Houston Methodist Hospital, Houston Methodist Sugarland Hospital, Houston Methodist Willowbrook Hospital, Houston Methodist West Hospital and Houston Methodist The Woodlands Hospital.

When was this NPI record last updated?

The NPPES record for Mahwash Kassi was last updated on July 21, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.