Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Muhammad Zahir Malik

Internal Medicine โ€ข Amarillo, TX

Active NPI 1952755928 Individual Practitioner Male Practitioner
Practice location in NPPES

1400 S Coulter St, Suite 2500
Amarillo, TX 791061786

Call 8064149100 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

1400 S Coulter St
Suite 2500

Amarillo, TX 791061786

Telephone 8064149100
Fax 8063545717
Organization at the Same NPPES Address or Phone
Texas Tech University Health Sciences Center Amarillo Facility NPI 1386675940

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 3 distinct group names: Emergency Medicine Associates P.A., P.C.; Northwest Hospital Center Inc; Sinai Hospital Of Baltimore, Inc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2013

Medicare patients

268 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $82,513 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $65,051 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

30-day fills

49 standardized 30-day fills in 2019

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$162 in 2019

The total cost of these prescriptions in 2019, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers โ€“ by Provider and Drug, 2019.

Open Payments general payments, program year 2025

All general payments: $53.79 across 2 records.

By nature of payment

  • Food and Beverage: $53.79 across 2 records.

Reporting-company totals

  • Pfizer Inc.: $53.79 across 2 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

13 years (graduated 2013)

CMS Doctors and Clinicians data list 2013 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2016

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

May accept Medicare assignment

CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Muhammad Malik has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Muhammad Malik as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Amarillo and Texas

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Close to the middle for clinicians listed under Internal Medicine in Amarillo, TX (2024, 50 clinicians with data). Median for this group: 1,056. Middle half: 635 to 4,913.

More Medicare Part B services than 60% of clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: 645. Middle half: 277 to 1,322.

Medicare-allowed amount

Close to the middle for clinicians listed under Internal Medicine in Amarillo, TX (2024, 50 clinicians with data). Median for this group: $100,969. Middle half: $49,373 to $237,910.

A higher Medicare-allowed amount than 60% of clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: $61,221. Middle half: $27,420 to $115,826.

Paid by Medicare

Close to the middle for clinicians listed under Internal Medicine in Amarillo, TX (2024, 50 clinicians with data). Median for this group: $79,170. Middle half: $37,380 to $192,270.

A higher Medicare payment amount than 60% of clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: $47,501. Middle half: $20,446 to $90,051.

Medicare Part D

Comparisons use 2024 data. The latest CMS data for Muhammad Malik are from 2019.

82 active clinicians are listed under Internal Medicine with a practice address in Amarillo, TX (9,191 in Texas).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Amarillo

19.5% of these 82 clinicians have the CMS telehealth indicator.

65.9% of these 82 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2019), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): fewer than 11 records totaling $53.79.

Manufacturer Payment Nature Product Type Amount ($)
Pfizer Inc.
Food and Beverage
In-kind items and services
ELIQUIS General $27.21
Pfizer Inc.
Food and Beverage
In-kind items and services
VYNDAMAX General $26.58

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2018โ€“2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2019โ€“2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
613 191 $200.00 $80.55
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
118 53 $285.00 $121.28
99239 Hospital discharge day management, more than 30 minutes
82 82 $300.00 $116.19
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes
42 20 $138.00 $50.57
99238 Hospital discharge day management, 30 minutes or less
28 28 $200.00 $83.01
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
19 18 $375.00 $133.89
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
13 13 $550.00 $177.30

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2019.

CMS Part D ยท Data Year 2019
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Atorvastatin Calcium Atorvastatin Calcium 16 455 $115.62 14
Carvedilol Carvedilol 12 360 $21.83 โ€”
Lisinopril Lisinopril 11 395 $25.02 โ€”

Source: CMS Part D by Provider and Drug, 2019; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

License # reported to NPPES MD D87252

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.

Student in an Organized Health Care Education/Training Program

NUCC Taxonomy Code: 390200000X

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Texas Medical Board.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - INTERNAL MEDICINE

Medicare Enrollment ID

I20190625003680

Enrollment State Jurisdiction

MD

PECOS Control ID

7618269374

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Emergency Medicine Associates P.a., P.c.

5401 Old Court Rd, Randallstown, MD 211335103

Phone: 4105215320

Northwest Hospital Center Inc

5401 Old Court Rd, Randallstown, MD 211335103

Phone: 410521220055633

Sinai Hospital Of Baltimore, Inc

2401 W Belvedere Ave, Baltimore, MD 212155216

Phone: 4106010594

Emergency Medicine Associates P.a., P.c.

200 Memorial Ave, Westminster, MD 211575726

Phone: 4108716700

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

40 listed
Dr. Kerolos Abdelmalek , MD

Student in an Organized Health Care Education/Training Program

NPI 1841753787

Doctor of Medicine (M.D.)

Dr. Falah Abu Hassan , MD

Student in an Organized Health Care Education/Training Program

NPI 1164006292

Doctor of Medicine (M.D.)

Dr. Obaidah Adi , MD

Student in an Organized Health Care Education/Training Program

NPI 1942999503

Doctor of Medicine (M.D.)

Dr. Marwa Ahmed , MD

Internal Medicine

NPI 1760801252

Doctor of Medicine (M.D.)

NPI 1871172122

Doctor of Medicine (M.D.)

Ali Al-Sarray

Hospitalist

NPI 1659909794

Career & Practice History

NPI enumerated April 15, 2016.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1952755928
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 15, 2016
Last Update: June 12, 2019
Sole Proprietor: Yes

Other Internal Medicine Providers in Amarillo

All Internal Medicine Providers in Amarillo

Mailing Address

2817 Diamond Ave

Allentown, PA 181036515

Phone: 6104271674

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.