Mary Elizabeth Poston, PA-C
Medical Physician Assistant · Liberty, TX
Mary Elizabeth Poston, PA-C is a medical physician assistant with a practice address in Liberty, Texas, and NPI 1205170156, issued on Nov 15, 2012. Check the license (Texas PA03872, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Elizabeth Poston
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA03872 TX
Self-reported in NPPES; status is on the state search - Practice location
- 2708 Jefferson Dr Ste A, Liberty, TX 77575
- Phone
- (936) 334-8800
- Enumerated
- Nov 15, 2012
- Record last updated
- Feb 19, 2024
- Fax
- (936) 334-8801
- Medicare enrollment
- Enrolled (PECOS I20130710000327); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical Branch At Galveston, 2003
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 2,146 in Texas → Look up another NPI →
Also registered at 2708 Jefferson Dr Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maria Sanchez, PA-CPhysician Assistant1801027149
- Brandon Smith, PA-CFamily Medicine Physician1265690309
Verify Mary Elizabeth Poston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license PA03872Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average medical physician assistant in 2024
3,478 Medicare Part D claims for 286 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 54 claims were for opioids.
Most prescribed
- Lisinopril140 claims
- Atorvastatin Calcium130 claims
- Rosuvastatin Calcium121 claims
- Metoprolol Succinate108 claims
- Levothyroxine Sodium106 claims
- Amlodipine Besylate101 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $524.74
18 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Firm Foundations Healthcare Clinic PCLiberty, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Elizabeth Poston among 2,146 medical physician assistant records in Texas
Mary Elizabeth Poston, PA-C is one of 2,146 medical physician assistant records with a practice address in Texas. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 54% of them.
- NPI issued2012 · 54% of these records are older, 42% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 44% of these records are
- Graduated2003 · median 2012 among the 953 with a school on file
- Record last updated2024 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 medical physician assistant records list a practice address in Liberty
They are 3 of the 75 NPPES records with a practice address in Liberty, and 2,146 medical physician assistant records in Texas.
All 2,146 in Texas → Every provider in Liberty → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Heather Reed, PA-CLiberty, TX 775751487889960
- Shelly States, P.ALiberty, TX 775751407094667
- Sarah Marsh, PALeague City, TX 775731962332783
- Katherine Mays, MPAS, PA-CLeague City, TX 775731194129650
- Idris Shoaga, PA-CManvel, TX 775781255739157
- Jean Cho, P.A-CPearland, TX 775811225435431
- Leslie Johnstone, PAPearland, TX 775811437572161
- Elizabeth Ginn, PA-CLa Marque, TX 775681083627780
Common questions
What is Mary Elizabeth Poston, PA-C's NPI number?
Mary Elizabeth Poston, PA-C's National Provider Identifier (NPI) is 1205170156, issued on Nov 15, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Mary Elizabeth Poston, PA-C located?
The NPPES record lists a practice address at 2708 Jefferson Dr Ste A, Liberty, TX, 77575. Phone: (936) 334-8800. Providers update this record themselves, so call before visiting.
How can I verify Mary Elizabeth Poston, PA-C's license?
NPPES lists Texas license number PA03872, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Elizabeth Poston, PA-C prescribe under Medicare Part D?
In 2024, Mary Elizabeth Poston, PA-C had 3,478 Medicare Part D claims for 286 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.