MARY ELIZABETH POSTON PA-C
NPI 1205170156
Physician Assistant - Medical in Liberty, TX

NPI Status: Active since November 15, 2012

Contact Information

2708 JEFFERSON DR STE A
LIBERTY, TX
ZIP 77575
Phone: (936) 334-8800
Fax: (936) 334-8801

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  • Individual
  • Female
  • Years of Experience 23
  • Physician Assistant
  • Medical
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About MARY POSTON

This page provides the complete NPI Profile along with additional information for Mary Poston, a primary care provider established in Liberty, Texas with a medical specialization in Physician Assistant, focusing in medical and more than 23 years of experience. She graduated from University Of Texas Medical Branch At Galveston in 2003. The healthcare provider is registered in the NPI registry with number 1205170156 assigned on November 2012. The practitioner's primary taxonomy code is 363AM0700X with license number PA03872 (TX). The provider is registered as an individual and her NPI record was last updated 2 years ago.

NPI
1205170156
Provider Name
MARY ELIZABETH POSTON PA-C
Gender
Female
Entity Type
Individual
Location Address
2708 JEFFERSON DR STE A LIBERTY, TX 77575
Location Phone
(936) 334-8800
Location Fax
(936) 334-8801
Mailing Address
2708 JEFFERSON DR STE A LIBERTY, TX 77575
Mailing Phone
(936) 334-8800
Mailing Fax
(936) 334-8801
Medical School Name
UNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON
Graduation Year
2003
Is Sole Proprietor?
No
Enumeration Date
11-15-2012
Last Update Date
02-19-2024
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A primary care provider (PCP) like Mary Poston sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Physician Assistant Medical

Taxonomy Code
363AM0700X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
PA03872
License State
TX

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Blue Advantage Bronze HMO? 204 - HMO
  • Blue Advantage Bronze HMO? 301 - HMO
  • Blue Advantage Bronze HMO? Standard - HMO
  • Blue Advantage Gold HMO? 206 - HMO
  • Blue Advantage Gold HMO? 603 - HMO
  • Blue Advantage Gold HMO? Standard - HMO
  • Blue Advantage Plus Bronze? 303 - POS
  • Blue Advantage Plus Bronze? 305 - POS
  • Blue Advantage Plus Bronze? Standard - POS
  • Blue Advantage Plus Gold? 203 - POS
  • Blue Advantage Plus Gold? 803 - POS
  • Blue Advantage Plus Gold? Standard - POS
  • Blue Advantage Plus Silver? 202 - POS
  • Blue Advantage Plus Silver? 605 - POS
  • Blue Advantage Plus Silver? Standard - POS
  • Blue Advantage Security HMO? 200 - HMO
  • Blue Advantage Silver HMO? 205 - HMO
  • Blue Advantage Silver HMO? 801 - HMO
  • Blue Advantage Silver HMO? Standard - HMO
  • UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care) - HMO
  • UHC Bronze Standard - HMO
  • UHC Bronze Value ($0 Virtual Urgent Care, $3 Tier 2 Rx) - HMO
  • UHC Gold Advantage ($0 Virtual Urgent Care, $3 Tier 2 Rx) - HMO
  • UHC Gold Advantage+ ($0 Virtual Urgent Care, $3 Tier 2 Rx, Dental + Vision) - HMO
  • UHC Gold Standard - HMO
  • UHC Gold Standard $0 Indiv Ded ($0 Virtual Urgent Care) - HMO
  • UHC Silver Advantage ($0 Virtual Urgent Care, $3 Tier 2 Rx) - HMO
  • UHC Silver Advantage+ ($0 Virtual Urgent Care, $3 Tier 2 Rx, Dental + Vision) - HMO
  • UHC Silver Standard - HMO
  • UHC Silver Value ($0 Virtual Urgent Care, $3 Tier 2 Rx) - HMO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Medicare Participation & PECOS Enrollment Status

Mary Poston is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Mary Poston is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 3870733165

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20130710000327

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Durable Medical Equipment

  • DME-Other DME (DE017N)

    Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips (HCPCS:A4253)

    5 DME suppliers used 11 Medicare Claims 33 Services Paid

  • DME-Oxygen and Supplies (DC002N)

    Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate (HCPCS:E1390)

    2 DME suppliers used 11 Medicare Claims 12 Services Paid

  • DME-Other DME (DE000N)

    Pharmacy dispensing fee for inhalation drug(s); per 30 days (HCPCS:Q0513)

    3 DME suppliers used 24 Medicare Claims 24 Services Paid

Drugs Administered Through DME

  • DME-Drugs Administered Through DME (DG006N)

    Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme (HCPCS:J7620)

    3 DME suppliers used 23 Medicare Claims 2640 Services Paid

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Administration of influenza virus vaccine

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.

This service was performed 39 times for 36 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit

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.

This service was performed 11 times for 11 patients

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

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.

This service was performed 29 times for 29 patients

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

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.

This service was performed 94 times for 58 patients

Established patient office or other outpatient visit, 20-29 minutes

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.

This service was performed 89 times for 59 patients

Established patient office or other outpatient visit, 30-39 minutes

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.

This service was performed 147 times for 75 patients

Hemoglobin a1c level

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.

This service was performed 52 times for 25 patients

Influenza vaccine, quadrivalent derived from cell cultures

The quadrivalent influenza vaccine, derived from cell cultures, is a flu shot that protects against four different flu viruses. It's made in labs using cell cultures instead of eggs, making it a good option for those with egg allergies. It's a crucial tool in preventing the flu.

This service was performed 41 times for 38 patients

Injection of drug or substance under skin or into muscle

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.

This service was performed 33 times for 19 patients

Insertion of needle into vein for collection of blood sample

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.

This service was performed 191 times for 88 patients

Manual urinalysis test with examination using microscope, non-automated

A manual urinalysis test involves studying a urine sample under a microscope. This non-automated method helps identify any abnormal substances present. It's a useful tool for detecting potential health concerns early. The process is simple and non-invasive.

This service was performed 70 times for 52 patients

X-ray of chest, 2 views

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.

This service was performed 18 times for 15 patients

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Mary Poston is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
HOUSTON METHODIST BAYTOWN HOSPITAL4401 GARTH ROAD
BAYTOWN, TX 77521
(281) 420-8600Acute Care Hospitals
LIBERTY DAYTON REGIONAL MEDICAL CENTER1353 N TRAVIS ST
LIBERTY, TX 77575
(936) 336-7316Critical Access Hospitals

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1205170156
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2205270110
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 2 + 0 + 5 + 2 + 7 + 0 + 1 + 1 + 0 + 24 = 44
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
50 - 44 = 66

The NPI number 1205170156 is valid because the calculated check digit 6 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 3 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1265690309 BRANDON KYLE SMITH PA-C
Individual
Family Medicine2708 JEFFERSON DR STE A
LIBERTY, TX 77575
(936) 334-8800
1447403399FIRM FOUNDATIONS HEALTHCARE CLINIC PC
Organization
Family Medicine2708 JEFFERSON DR STE A
LIBERTY, TX 77575
(936) 334-8800
1801027149MS. MARIA GUADALUPE SANCHEZ PA-C
Individual
Physician Assistant2708 JEFFERSON DR STE A
LIBERTY, TX 77575
(936) 334-8800

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1205170156, enumerated in the NPI registry as an "individual" on November 15, 2012

The provider is located at 2708 Jefferson Dr Ste A Liberty, Tx 77575 and the phone number is (936) 334-8800

The provider's speciality is Physician Assistant with taxonomy code 363AM0700X with a focus in Medical

The provider has more than 23 years of experience. She graduated from University Of Texas Medical Branch At Galveston in 2003.

The provider might be accepting Accepts: Blue Cross and Blue Shield of Texas and. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

The most common procedures or services performed by this practitioner are: Administration of influenza virus vaccine, Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit, Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit, Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count, Established patient office or other outpatient visit, 20-29 minutes, Established patient office or other outpatient visit, 30-39 minutes, Hemoglobin a1c level, Influenza vaccine, quadrivalent derived from cell cultures, Injection of drug or substance under skin or into muscle, Insertion of needle into vein for collection of blood sample, Manual urinalysis test with examination using microscope, non-automated and X-ray of chest, 2 views.

The practitioner is affiliated to the following hospital(s): HOUSTON METHODIST BAYTOWN HOSPITAL and LIBERTY DAYTON REGIONAL MEDICAL CENTER. Hospital affiliations are identified through self-reporting data and service claims based on the place of service.

This NPI record was last updated on November 15, 2012. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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