MARY M HAMMACK MD
NPI 1871501874
Internal Medicine in Plano, TX

Q: What is Mary Hammack's NPI number?

The NPI number for Mary Hammack is 1871501874. It was assigned to this individual provider in the NPPES registry on August 4, 2006.

Q: What is Mary Hammack's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Mary Hammack was last updated on December 23, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.

Active since August 04, 2006PECOS EnrolledAccepts Medicare Assignment

6124 W PARKER RD, MOB III SUITE 234, PLANO, TX 75093(972) 981-7500(972) 981-3600 Get Directions Write a Review

NPPES record last updated: December 23, 2008. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Mary M Hammack Md NPPES

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

MARY M HAMMACK MD (NPI 1871501874) is an individual internal medicine provider in Plano, Texas, licensed in Texas (H6269) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS, is affiliated with Medical City Plano, and is a graduate of University Of Texas Medical School At San Antonio (1988).

NPPES Registry Identity

NPI1871501874

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameMARY M HAMMACKCredential: MD

Location Address6124 W PARKER RD, MOB III SUITE 234Plano, TX 75093-8124

Mailing Address6124 W. Parker Rd, Suite 234 Mob IiiPlano, TX 75093-8124 · (972) 981-7500 · Fax (972) 981-3600

Phone(972) 981-7500

Fax(972) 981-3600

Sole ProprietorNo

Medical School CMSUniversity Of Texas Medical School At San AntonioGraduated 1988

Enumeration DateAugust 4, 2006

Last NPPES UpdateDecember 23, 2008

✔ NPI 1871501874 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 · H6269

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.

6124 W PARKER RD, Plano, TX 75093

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Other Identifiers 9

Medicare UPINF39523TX

Other1487817151TX · Group Npi

OtherP00644332TX · Railroad Medicare Ptan

Medicare PIN00Z533TX

Other8BL891Bcbs

Medicaid116942701TX

OtherDN8858TX · Railroad Medicare Group Ptan

Medicare PIN8F8676TX

Medicare PIN8D1971TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.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 M Hammack 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 ID648229500

PECOS Enrollment IDI20050118000563

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 40

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.

Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes 99458

This service involves analyzing your vital signs, like heart rate and blood pressure, remotely collected over a month. Each additional 20 minutes spent on management refers to extra time spent reviewing, interpreting your data, and planning your care. It's a critical part of ensuring your wellbeing.

2,266 services110 patients

Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 99439

Chronic Care Management services involve regular check-ins with healthcare professionals to manage two or more chronic conditions. It includes an additional 20 minutes of clinical staff time per month, directed by a healthcare professional, to ensure optimal health management.

1,235 services78 patients

Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 99457

This service involves reviewing and managing your health data, which is remotely monitored and collected. Your vital signs like heart rate and blood pressure are tracked regularly throughout the month. The first 20 minutes of this data analysis per month is included in this service.

1,138 services115 patients

Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days 99454

This service involves using devices to remotely track body functions like heart rate or blood pressure. These devices, provided initially, record data daily or send alerts if readings are abnormal. The service is renewed every 30 days.

956 services114 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

680 services78 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.

610 services365 patients

Blood test, basic group of blood chemicals (calcium, total) 80048

A basic group blood test measures the levels of certain chemicals in your blood, including calcium. This helps assess your overall health and detect potential problems. The procedure involves drawing a small amount of blood from your arm, which is then analyzed in a lab.

543 services383 patients

Liver function blood test panel 80076

A liver function blood test panel helps check the health of your liver. It measures various proteins, liver enzymes, and bilirubin in your blood. If these levels are too high or too low, it could signal a liver problem. It's a simple, non-invasive test that involves drawing blood.

507 services375 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

464 services356 patients

Blood test, lipids (cholesterol and triglycerides) 80061

A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.

459 services355 patients

Blood test, thyroid stimulating hormone (tsh) 84443

A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.

431 services351 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.

330 services330 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.

329 services264 patients

Annual depression screening, 5 to 15 minutes G0444

An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.

312 services312 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.

303 services231 patients

Automated urinalysis test 81003

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

301 services263 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.

257 services190 patients

Annual alcohol misuse screening, 5 to 15 minutes G0442

An annual alcohol misuse screening is a 15-minute check-up to assess your drinking habits. It helps identify if you're consuming alcohol in a way that could harm your health. This is not a judgment, but a tool to promote your wellbeing.

247 services247 patients

Thyroxine (thyroid chemical), free 84439

The Thyroxine (thyroid chemical), free test is a blood test that measures the level of free T4 in your body. T4 is a hormone produced by your thyroid gland and is essential for growth and metabolism. If your T4 levels are too high or too low, it could indicate a thyroid disorder.

234 services187 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

195 services191 patients

Creatinine level to test for kidney function or muscle injury 82570

A creatinine level test measures the amount of creatinine in your blood. This substance is a waste product from normal muscle use. Higher levels can indicate possible kidney dysfunction or muscle injury. This test helps monitor kidney health.

151 services136 patients

Dxa bone density measurement of hip, pelvis, spine 77080

A DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.

93 services92 patients

Ferritin (blood protein) level 82728

A Ferritin level test measures the amount of ferritin, a protein that stores iron, in your blood. It helps determine how much iron your body is storing. If levels are low, it may indicate iron deficiency, while high levels could signify conditions like iron overload.

82 services66 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.

82 services82 patients

Iron level 83540

An iron level test measures the amount of iron in your blood. Iron is crucial for producing hemoglobin, a protein in red blood cells that carries oxygen throughout your body. This test helps identify iron deficiencies or excesses, which can lead to conditions like anemia or hemochromatosis.

81 services65 patients

Iron binding capacity 83550

Iron binding capacity is a blood test that measures how well your body can bind and transport iron. This helps your healthcare provider assess if your body has too little or too much iron, which can indicate certain health conditions.

81 services65 patients

Influenza vaccine split virus, preservative free 90662

The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.

81 services81 patients

Prostate cancer screening; prostate specific antigen test (psa) G0103

Prostate cancer screening involves a simple blood test known as the Prostate Specific Antigen (PSA) test. This test measures the level of PSA in your blood. Higher than normal levels can be an early indication of prostate issues, including cancer. It's a key tool in early detection.

73 services73 patients

Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a G0179

This procedure involves a doctor or approved practitioner reviewing your health status and re-certifying your need for Medicare-covered home health services. It includes communication with the home health agency and assessment of your health reports, even when you're not physically present.

44 services17 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

42 services42 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

38 services38 patients

Urinalysis, manual test 81002

A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.

24 services21 patients

Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 90677

The Pneumococcal Conjugate Vaccine (PCV20) is a shot given to protect against 20 types of bacteria that can cause serious infections like pneumonia and meningitis. It's administered through a muscle, usually in the arm. It's important for overall health.

22 services22 patients

Administration of pneumococcal vaccine G0009

The pneumococcal vaccine helps protect against pneumococcal bacteria, which can cause severe infections like pneumonia and meningitis. The vaccine is given as an injection, typically in the arm. It's recommended for infants, older adults, and those with certain health conditions.

22 services22 patients

Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180

This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.

21 services21 patients

Uric acid level, blood 84550

A blood uric acid level test measures the amount of uric acid in your blood. Uric acid is a waste product that your body produces when it breaks down purines, substances found in your body and in certain foods. High levels may lead to gout or kidney stones.

18 services15 patients

Psa (prostate specific antigen) measurement, total 84153

PSA measurement is a simple blood test that checks for a specific protein produced by your body. High levels could indicate a health issue that needs further investigation. It's often used to monitor general wellness and is part of routine health screening.

12 services12 patients

Testosterone (hormone) level, total 84403

A total testosterone level test measures the amount of a key hormone in your body. This hormone influences various body functions such as muscle mass, energy levels, and mood. The test involves a simple blood draw, and results help monitor health conditions.

12 services11 patients

Administration of vaccine 90471

Administering a vaccine involves injecting a small, safe piece of a virus or bacteria into your body. This triggers your immune system to recognize and fight off the disease in the future. It's a vital tool in preventing serious illnesses and maintaining public health.

11 services11 patients

Transitional care management services for problem of at least moderate complexity 99495

Transitional care management services focus on coordinating and managing your care after you leave the hospital. For moderate complexity problems, this involves managing your medications, arranging further treatments, and ensuring you have the necessary follow-ups.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Medical City Plano

Acute Care Hospitals · Plano, TX

3/5 CMS rating

OwnershipProprietary

CMS Certification Number450651

Location3901 W 15th StPlano, TX 75075 · Collin County

Emergency services Birthing friendly

Dallas Regional Medical Center

Acute Care Hospitals · Mesquite, TX

4/5 CMS rating

OwnershipProprietary

CMS Certification Number450688

Location1011 North Galloway AvenueMesquite, TX 75149 · Dallas County

Emergency services Birthing friendly

Texas Health Presbyterian Hospital Plano

Acute Care Hospitals · Plano, TX

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450771

Location6200 W Parker RdPlano, TX 75093 · Collin County

Emergency services Birthing friendly

Texas Health Presbyterian Hospital Allen

Acute Care Hospitals · Allen, TX

4/5 CMS rating

OwnershipGovernment - Federal

CMS Certification Number450840

Location1105 Central Expressway NorthAllen, TX 75013 · Collin County

Emergency services Birthing friendly

Baylor Scott & White Medical Center Plano

Acute Care Hospitals · Plano, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number450890

Location4700 Alliance BoulevardPlano, TX 75093 · Collin County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75093 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

$126.40 typical visit price

range $54.84 – $166.88

Typical copayment $31.60 (range $13.71 – $41.72)

Most-billed visit code 99204

Established Patient

$97.05 typical visit price

range $17.52 – $136.11

Typical copayment $24.26 (range $4.38 – $34.02)

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 5

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

23 suppliers55 claims148 services$5.92 avg. paid by Medicare

Normal, low and high calibrator solution / chips A4256

DME-Other DME · category DE000N

2 suppliers12 claims12 services$2.95 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

10 suppliers28 claims36 services$1.14 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 supplier19 claims19 services$63.27 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

1 supplier11 claims11 services$172.71 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.

MARCIA L TAYLOR, MD, PA

Obstetrics & Gynecology

6124 W PARKER RD, STE 134
PLANO, TX 75093

Collin County (972) 981-7777

WEST PLANO SURGERY CENTER 2, LLC

Clinic/Center (Ambulatory Surgical)

6124 W PARKER RD, PRESBYTERIAN HOSPITAL # 232
PLANO, TX 75093

Collin County (469) 467-0100

PEDIATRIC ENDOCRINOLOGY OF NORTH TEXAS, PLLC

Clinic/Center (Medical Specialty)

6124 W PARKER RD, MEDICAL OFFICE BUILDING 3, SUITE #330
PLANO, TX 75093

Collin County (940) 600-4861

DR. VIJAY SITHARAM RAMANATH M.D.

Internal Medicine (Interventional Cardiology)

6124 W PARKER RD, SUITE 536
PLANO, TX 75093

Collin County (972) 378-9560

JOEL D CAMPBELL, M.D., P.A.

Psychiatry & Neurology (Neurology)

6124 W PARKER RD, SUITE 432
PLANO, TX 75093

Collin County (972) 403-3100

DR. MICHAEL BENDELE BLACKMON M.D.

Internal Medicine (Pulmonary Disease)

6124 W PARKER RD, SUITE 530
PLANO, TX 75093

Collin County (214) 778-1075

ARASH TIRANDAZ MD PA

Internal Medicine

6124 W PARKER RD, MOB III SUITE 234
PLANO, TX 75093

Collin County (972) 981-7500

LE N/A TCHEN P.A.

Physician Assistant

6124 W PARKER RD, #536
PLANO, TX 75093

Collin County (972) 943-8440

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 Hammack's NPI number?

The NPI number for Mary Hammack is 1871501874. It was assigned to this individual provider in the NPPES registry on August 4, 2006.

Where is Mary Hammack located?

Mary Hammack practices at 6124 W Parker Rd Mob III Suite 234, Plano, TX 75093. The listed phone number is (972) 981-7500.

What is Mary Hammack's specialty?

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

Is Mary Hammack enrolled in Medicare?

Yes. Mary Hammack 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 Hammack accept?

Health plans from Blue Cross and Blue Shield of Texas list Mary Hammack 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 Hammack affiliated with any hospitals?

According to CMS data, Mary Hammack is affiliated with Medical City Plano, Dallas Regional Medical Center, Texas Health Presbyterian Hospital Plano, Texas Health Presbyterian Hospital Allen and Baylor Scott & White Medical Center Plano.

When was this NPI record last updated?

The NPPES record for Mary Hammack was last updated on December 23, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.