NPPES file of Aug 9, 2026

Mary Elizabeth McConnell Tessier, MD

Pediatric Gastroenterology Physician · Houston, TX

Mary Elizabeth McConnell Tessier, MD is a pediatric gastroenterology physician with a practice address in Houston, Texas, and NPI 1083967012, issued on Oct 15, 2012. Check the license (Texas P1935, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1083967012
Name
Mary Elizabeth McConnell Tessier
Credential
MD
Primary taxonomy
Pediatric Gastroenterology Physician 2080P0206X
License number
P1935 TX
Self-reported in NPPES; status is on the state search
Practice location
6701 Fannin St, Houston, TX 77030
Phone
(832) 822-1051
Enumerated
Oct 15, 2012
Record last updated
Sep 27, 2024
Medicare enrollment
Enrolled (PECOS I20250528001036); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 6701 Fannin St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mary Abelt, CPNPNurse Practitioner1780764043
  2. Farida Abid, MDPediatrics Physician1629007588
  3. Hani Abou Hatab, M.DPediatric Infectious Diseases Physician1922450782
  4. Amy Acosta, PHDPsychologist1265720700
  5. Ansley Adams, NNPNurse Practitioner1144015157
  6. Diana Adeleke, LCSWClinical Social Worker1720621683

Verify Mary Elizabeth McConnell Tessier in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license P1935
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Texas Childrens Physician GroupHouston, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mary Elizabeth McConnell Tessier among 190 pediatric gastroenterology physician records in Texas

Mary Elizabeth McConnell Tessier, MD is one of 190 pediatric gastroenterology physician records with a practice address in Texas. 69% 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 65% of them.

  • NPI issued2012 · 65% of these records are older, 30% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 36% of these records are
  • Graduated2009 · median 2004 among the 68 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 2080P0206X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Gastroenterology Physician providers in Texas

There are 190 pediatric gastroenterology physician records in Texas.

The 8 pediatric gastroenterology physician records with the nearest ZIP codes

  1. Wallace Gleason, M.D.Houston, TX 770301750325536
  2. Paula Hertel, M.D.Houston, TX 770301760421184
  3. Essam Imseis, MDHouston, TX 770301508815861
  4. Craig Jensen, MDHouston, TX 770301891875159
  5. Lina Karam, MDHouston, TX 770301295749224
  6. William Klish, MDHouston, TX 770301215017587
  7. Carlos Lifschitz, MDHouston, TX 770301922188325
  8. Valerie McLin, MDHouston, TX 770301982784393

Common questions

What is Mary Elizabeth McConnell Tessier, MD's NPI number?

Mary Elizabeth McConnell Tessier, MD's National Provider Identifier (NPI) is 1083967012, issued on Oct 15, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Mary Elizabeth McConnell Tessier, MD located?

The NPPES record lists a practice address at 6701 Fannin St, Houston, TX, 77030. Phone: (832) 822-1051. Providers update this record themselves, so call before visiting.

How can I verify Mary Elizabeth McConnell Tessier, MD's license?

NPPES lists Texas license number P1935, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.