DR. MARY C HAMMOCK MD
NPI 1174509640
Internal Medicine in Chattanooga, TN

Q: What is Mary Hammock's NPI number?

The NPI number for Mary Hammock is 1174509640. It was assigned to this individual provider in the NPPES registry on December 16, 2005.

Q: What is Mary Hammock'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 Hammock was last updated on January 15, 2009. 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 December 16, 2005PECOS EnrolledAccepts Medicare Assignment

725 GLENWOOD DR, SUITE 480, CHATTANOOGA, TN 37404(423) 756-5779(423) 242-4552 Get Directions Write a Review

NPPES record last updated: January 15, 2009. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Mary C Hammock Md NPPES

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

DR. MARY C HAMMOCK MD (NPI 1174509640) is an individual internal medicine provider in Chattanooga, Tennessee, licensed in Tennessee (14192) and active in the NPI registry since December 2005. She is enrolled in Medicare PECOS, is affiliated with Memorial Healthcare System, Inc, and is a graduate of University Of Tennessee, Hsc, College Of Medicine (1981).

NPPES Registry Identity

NPI1174509640

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameDR. MARY C HAMMOCKCredential: MD

Location Address725 GLENWOOD DR, SUITE 480Chattanooga, TN 37404-1163

Mailing Address725 Glenwood Dr, Suite 480Chattanooga, TN 37404-1163 · (423) 756-5779 · Fax (423) 242-4552

Phone(423) 756-5779

Fax(423) 242-4552

Sole ProprietorNo

Medical School CMSUniversity Of Tennessee, Hsc, College Of MedicineGraduated 1981

Enumeration DateDecember 16, 2005

Last NPPES UpdateJanuary 15, 2009

✔ NPI 1174509640 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in TN · 14192

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.

725 GLENWOOD DR, Chattanooga, TN 37404

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Other Identifiers 1

Medicare PIN3010061TN

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. Mary C Hammock 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 ID7113003856

PECOS Enrollment IDI20100818000263

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 20

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.

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

282 services227 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

267 services222 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.

250 services223 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.

234 services213 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.

219 services207 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.

210 services179 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.

191 services186 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.

188 services183 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.

176 services176 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.

168 services168 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.

138 services101 patients

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

92 services11 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

67 services65 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.

49 services49 patients

Injection, dexamethasone sodium phosphate, 1 mg J1100

Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.

48 services11 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.

44 services35 patients

Stool analysis for blood to screen for colon tumors 82270

A stool analysis for blood is a non-invasive procedure used to check for the presence of hidden blood in your stool. This can be an early sign of colon tumors. The test involves collecting a small sample of stool at home and sending it to a lab for analysis.

27 services27 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.

26 services26 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

19 services15 patients

Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit G0438

An annual wellness visit is a yearly appointment with your doctor to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's an opportunity to discuss your health status and goals and get a plan tailored for you.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Memorial Healthcare System, Inc

Acute Care Hospitals · Chattanooga, TN

5/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number440091

Location2525 Desales AveChattanooga, TN 37404 · Hamilton County

Erlanger Medical Center

Acute Care Hospitals · Chattanooga, TN

2/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number440104

Location975 E 3rd StChattanooga, TN 37403 · Hamilton County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37404 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

$121.80 typical visit price

range $52.64 – $160.89

Typical copayment $30.45 (range $13.16 – $40.22)

Most-billed visit code 99204

Established Patient

$93.60 typical visit price

range $16.72 – $131.41

Typical copayment $23.40 (range $4.18 – $32.85)

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

14 suppliers29 claims74 services$5.72 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

8 suppliers14 claims20 services$1.07 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

3 suppliers17 claims17 services$68.46 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

2 suppliers17 claims17 services$193.33 avg. paid by Medicare

Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738

DME-Oxygen and Supplies · category DC000N

1 supplier12 claims12 services$28.77 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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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.

DR. JACK B MCCALLIE MD

Internal Medicine

725 GLENWOOD DR, SUITE E480
CHATTANOOGA, TN 37404

Hamilton County (423) 756-5779

DR. FRED MARSHALL GREGG III M.D.

Ophthalmology

725 GLENWOOD DR, SUITE 892
CHATTANOOGA, TN 37404

Hamilton County (423) 624-3937

SAMANTHA GAGLIANO FNP

Nurse Practitioner (Family)

725 GLENWOOD DR
CHATTANOOGA, TN 37404

Hamilton County (423) 503-7786

DR. SAMUEL M CURRIN M.D.

Urology

725 GLENWOOD DR, STE E780
CHATTANOOGA, TN 37404

Hamilton County (423) 697-0072

PAUL CORNEA MD

Internal Medicine (Infectious Disease)

725 GLENWOOD DR, SUITE E-486
CHATTANOOGA, TN 37404

Hamilton County (423) 495-2650

DR. MARY E CARTER MD

Pediatrics

725 GLENWOOD DR, SUITE E-882
CHATTANOOGA, TN 37404

Hamilton County (423) 698-2229

DR. GLENN A NEWMAN MD

Internal Medicine

725 GLENWOOD DR, SUITE 480
CHATTANOOGA, TN 37404

Hamilton County (423) 756-5779

DR. MAX V BRYANT MD

Pediatrics

725 GLENWOOD DR, SUITE 882
CHATTANOOGA, TN 37404

Hamilton County (423) 798-2229

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 Hammock's NPI number?

The NPI number for Mary Hammock is 1174509640. It was assigned to this individual provider in the NPPES registry on December 16, 2005.

Where is Mary Hammock located?

Mary Hammock practices at 725 Glenwood Dr Suite 480, Chattanooga, TN 37404. The listed phone number is (423) 756-5779.

What is Mary Hammock's specialty?

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

Is Mary Hammock enrolled in Medicare?

Yes. Mary Hammock 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.

Is Mary Hammock affiliated with any hospitals?

According to CMS data, Mary Hammock is affiliated with Memorial Healthcare System, Inc and Erlanger Medical Center.

When was this NPI record last updated?

The NPPES record for Mary Hammock was last updated on January 15, 2009. 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.