Marilyn Barbara Mayer, MD
Internal Medicine Physician · Cypress, TX
Marilyn Barbara Mayer, MD is an internal medicine physician with a practice address in Cypress, Texas, and NPI 1205818853, issued on Nov 18, 2005. Check the license (Texas J2191, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Marilyn Barbara Mayer
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- J2191 TX
Self-reported in NPPES; status is on the state search - Practice location
- 21216 Northwest Fwy, Cypress, TX 77429
- Phone
- (832) 756-2976
- Enumerated
- Nov 18, 2005
- Record last updated
- Jun 26, 2025
- Fax
- (281) 469-4572
- Medicare enrollment
- Enrolled (PECOS I20070320000136); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At Houston, 1990
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 21216 Northwest Fwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Stacey Gibilterra, FNPFamily Nurse Practitioner1407842123
Verify Marilyn Barbara Mayer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license J2191Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% more Medicare Part D claims than the average internal medicine physician in 2024
4,524 Medicare Part D claims for 346 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 70 claims were for opioids.
Most prescribed
- Levothyroxine Sodium291 claims
- Atorvastatin Calcium241 claims
- Amlodipine Besylate176 claims
- Rosuvastatin Calcium169 claims
- Losartan Potassium140 claims
- Escitalopram Oxalate120 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.
The MIPS final score for 2023 (Medicare payment program): 86.7 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $85.46
3 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- North Cypress Medical Partners IncCypress, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marilyn Barbara Mayer among 9,175 internal medicine physician records in Texas
Marilyn Barbara Mayer, MD is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1990 · median 2004 among the 6,088 with a school on file
- Record last updated2025 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
39 internal medicine physician records list a practice address in Cypress
They are 39 of the 2,457 NPPES records with a practice address in Cypress, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Cypress → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Lisa Chan, M.D.Cypress, TX 774291992860829
- Kelly Englund, MDCypress, TX 774291144251406
- Sanjay Jaswani, M.D.Cypress, TX 774291548418288
- Bijoy Mukherjee, DOCypress, TX 774291538450879
- Harcharan Narang, M.D.Cypress, TX 774291144212978
- Thuan Nguyen, M.D.Cypress, TX 774291841206703
- Gabriela Nicola, M.D.Cypress, TX 774291164674628
- Christopher Ogunro, M.D.Cypress, TX 774291073562328
Common questions
What is Marilyn Barbara Mayer, MD's NPI number?
Marilyn Barbara Mayer, MD's National Provider Identifier (NPI) is 1205818853, issued on Nov 18, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Marilyn Barbara Mayer, MD located?
The NPPES record lists a practice address at 21216 Northwest Fwy, Cypress, TX, 77429. Phone: (832) 756-2976. Providers update this record themselves, so call before visiting.
How can I verify Marilyn Barbara Mayer, MD's license?
NPPES lists Texas license number J2191, 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.
How much does Marilyn Barbara Mayer, MD prescribe under Medicare Part D?
In 2024, Marilyn Barbara Mayer, MD had 4,524 Medicare Part D claims for 346 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Marilyn Barbara Mayer, MD's MIPS final score?
The 2023 MIPS final score is 86.7 of 100. 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.