Marissa Aileen Wagner Mery, M.D.
Critical Care Medicine (Anesthesiology) Physician · Houston, TX
Marissa Aileen Wagner Mery, M.D. is a critical care medicine (anesthesiology) physician with a practice address in Houston, Texas, and NPI 1831363217, issued on Apr 16, 2008. Check the license (Texas R4100, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Marissa Aileen Wagner Mery
- Credential
- M.D.
- Primary taxonomy
- Critical Care Medicine (Anesthesiology) Physician 207LC0200X
- License number
- R4100 TX
Self-reported in NPPES; status is on the state search - Practice location
- 6720 Bertner Ave Ste O-520, Houston, TX 77030
- Phone
- (832) 355-2666
- Enumerated
- Apr 16, 2008
- Record last updated
- Oct 26, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20250116003125); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 2008
- Entity
- Type 1 · individual
8 nearest critical care medicine (anesthesiology) physician records → All 54 in Texas → Look up another NPI →
Also registered at 6720 Bertner Ave Ste O-520
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ayoade Ademuyewo, DNPCertified Registered Nurse Anesthetist1861987539
- Alisha AggarwalInternal Medicine Physician1063157519
- Shreya Aggarwal, MDAnesthesiology Physician1902156037
- Titilopemi Aina-Jones, MDAnesthesiology Physician1609001890
- Kulsum Akbar, M.D.Anesthesiology Physician1962668731
- Chandra Akojie, CRNACertified Registered Nurse Anesthetist1194383190
Verify Marissa Aileen Wagner Mery in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license R4100Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 93.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
One hospital affiliation
- Vanderbilt University Medical CenterNashville, TN · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Marissa Aileen Wagner Mery among 54 critical care medicine (anesthesiology) physician records in Texas
Marissa Aileen Wagner Mery, M.D. is one of 54 critical care medicine (anesthesiology) physician records with a practice address in Texas. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 52% of them.
- NPI issued2008 · 52% of these records are older, 43% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2008 · median 2004 among the 40 with a school on file
- Record last updated2017 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LC0200X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Anesthesiology) Physician providers in Texas
There are 54 critical care medicine (anesthesiology) physician records in Texas.
All 54 in Texas → Every provider in Houston → Critical Care Medicine (Anesthesiology) Physician nationwide →
The 8 critical care medicine (anesthesiology) physician records with the nearest ZIP codes
- Steven Allen, M.D.Houston, TX 770301124069661
- Gregory Botz, M.D.Houston, TX 770301174551378
- Karen Chen, M.D.Houston, TX 770301326132259
- Diego De Villalobos, M.D.Houston, TX 770301770672396
- Thomas Feeley, M.D.Houston, TX 770301578661823
- Navneet Grewal, MDHouston, TX 770301508928573
- Spencer Kee, M.D.Houston, TX 770301902907926
- Faisal Masud, M.D.Houston, TX 770301023054525
Common questions
What is Marissa Aileen Wagner Mery, M.D.'s NPI number?
Marissa Aileen Wagner Mery, M.D.'s National Provider Identifier (NPI) is 1831363217, issued on Apr 16, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Marissa Aileen Wagner Mery, M.D. located?
The NPPES record lists a practice address at 6720 Bertner Ave Ste O-520, Houston, TX, 77030. Phone: (832) 355-2666. Providers update this record themselves, so call before visiting.
How can I verify Marissa Aileen Wagner Mery, M.D.'s license?
NPPES lists Texas license number R4100, 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.
What is Marissa Aileen Wagner Mery, M.D.'s MIPS final score?
The 2023 MIPS final score is 93.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.