Active NPI
Marilyn Barbara Mayer, MD
- Internal Medicine Physician
- Cypress, TX
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- J2191
- Practice address
- 21216 Northwest Fwy
Suite 560
Cypress, TX 77429-4695 - Phone
- (832) 756-2976
- Fax
- (281) 469-4572
- NPI assigned
- Nov 18, 2005
- Last updated
- Jun 26, 2025
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | J2191 | TX | Primary |
Addresses
Primary practice location
21216 Northwest Fwy
Suite 560
Cypress, TX 77429-4695
Mailing address
21216 Northwest Fwy
Suite 560
Cypress, TX 77429-4695
Phone (832) 756-2976
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in TX
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Internal Medicine
- Education
- University of Texas Medical School at Houston, 1990
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
21216 Northwest Fwy
Suite 260
Cypress, TX 77429-4695
Phone (281) 949-5201
21216 Northwest Fwy
Suite 560
Cypress, TX 77429-4697
Phone (281) 469-3949
21216 Northwest Fwy
Suite 610
Cypress, TX 77429-4699
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| J2191 | TX | MD | Internal Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| North Cypress Medical Partners, Inc | Internal Medicine | Current | Accepting new patients |
Locations
21216 Northwest Fwy
Ste 560
Cypress, TX 77429
Phone (281) 469-3949
21216 Northwest Fwy
Ste 670
Cypress, TX 77429
Phone (281) 807-6554
Organizations & group practices 1
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- Internal Medicine Physician
- Cypress, TX
- NPI 1336528538
Hospital & facility affiliations 16
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Home Health Agency
- Houston, TX
- NPI 1629031646
-
dba HCA Houston Healthcare North Cypress a Campus of HCA Houston Healthcar
- General Acute Care Hospital
- Kingwood, TX
- NPI 1811942238
-
dba Memorial Hermann Imaging Centers-East Houston Center
- Physiological Laboratory
- Houston, TX
- NPI 1154595155
Hospital
-
dba MHHS Memorial City Outpatient Imaging Center
- Physiological Laboratory
- Houston, TX
- NPI 1275568032
Hospital
-
dba Mhhs Hermann Outpatient Imaging Center
- Portable X-ray and/or Other Portable Diagnostic Imaging Supplier
- Houston, TX
- NPI 1437189115
Hospital
-
dba Memorial Hermann Imaging Centers-Pasadena Center
- Physiological Laboratory
- Pasadena, TX
- NPI 1437323482
Hospital
-
dba Memorial Hermann Imaging Centers-Willowbrook Center
- Physiological Laboratory
- Houston, TX
- NPI 1588838593
Hospital
-
dba Memorial Hermann Imaging Center-Upper Kirby
- Physiological Laboratory
- Houston, TX
- NPI 1639343635
Hospital
-
dba Memorial Hermann Memorial City Hospital
- General Acute Care Hospital
- Houston, TX
- NPI 1740233782
-
dba Memorial Hermann Imaging Centers-First Colony Center
- Physiological Laboratory
- Sugar Land, TX
- NPI 1841465697
Hospital
-
dba Memorial Hermann Imaging Centers-Clearlake Center
- Physiological Laboratory
- Houston, TX
- NPI 1952575904
Hospital
-
dba Memorial Hermann Hospital
- General Acute Care Hospital
- Houston, TX
- NPI 1982666111
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1132272000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1750896000000",
"number": "1205818853",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "21216 NORTHWEST FWY",
"address_2": "SUITE 560",
"city": "CYPRESS",
"state": "TX",
"postal_code": "774294695",
"telephone_number": "832-756-2976",
"fax_number": "281-469-4572"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "21216 NORTHWEST FWY",
"address_2": "SUITE 560",
"city": "CYPRESS",
"state": "TX",
"postal_code": "774294695",
"telephone_number": "832-756-2976",
"fax_number": "281-469-4572"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MAYER",
"first_name": "MARILYN",
"middle_name": "BARBARA",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2005-11-18",
"last_updated": "2025-06-26",
"certification_date": "2025-06-26",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "TX",
"license": "J2191",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Cypress, TX
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 26, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.