Rizza Martinez-Atain
Nurse Practitioner β’ Houston, TX
1515 Holcombe Blvd
Houston, TX 770304000
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
1515 Holcombe Blvd
Houston, TX 770304000
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Physicians Referral Service. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2014
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
Open Payments general payments, program year 2025
All general payments: $935.18 across 20 records.
By nature of payment
- Food and Beverage: $479.19 across 13 records.
- Education: $351.98 across 4 records.
- Travel and Lodging: $104.01 across 3 records.
Reporting-company totals (3 largest of 9)
- Globus Medical, Inc.: $283.22 across 5 records.
- Incyte Corporation: $266.06 across 5 records.
- Pfizer Inc.: $99.00 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
12 years (graduated 2014)
CMS Doctors and Clinicians data list 2014 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2015
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Rizza Martinez-Atain has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Rizza Martinez-Atain as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Houston and Texas
785 active clinicians are listed under Nurse Practitioner with a practice address in Houston, TX (4,835 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Houston
13.6% of these 785 clinicians have the CMS telehealth indicator.
43.7% of these 785 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $324.05 in 2024 to $935.18 in 2025.
- 2024: $324.05
- 2025: $935.18
Sources: CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 β December 31, 2025): 20 records totaling $935.18.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Globus Medical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Senza | General | $147.85 |
| Incyte Corporation |
Education
Cash or cash equivalent
|
β | General | $99.99 |
| Pfizer Inc. |
Education
In-kind items and services
|
β | General | $99.00 |
| Incyte Corporation |
Education
Cash or cash equivalent
|
β | General | $83.99 |
| SOBI, INC |
Education
In-kind items and services
|
β | General | $69.00 |
| Globus Medical, Inc. |
Travel and Lodging
Cash or cash equivalent
|
Senza | General | $52.14 |
| Globus Medical, Inc. |
Travel and Lodging
Cash or cash equivalent
|
Senza | General | $41.28 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
ELREXFIO | General | $39.80 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
CARVYKTI | General | $37.14 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
|
JAYPIRCA | General | $33.50 |
| Globus Medical, Inc. |
Food and Beverage
Cash or cash equivalent
|
Senza | General | $31.36 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
|
JAYPIRCA | General | $29.02 |
| Incyte Corporation |
Food and Beverage
Cash or cash equivalent
|
MONJUVI | General | $28.96 |
| SOBI, INC |
Food and Beverage
In-kind items and services
|
Gamifant | General | $28.87 |
| Incyte Corporation |
Food and Beverage
Cash or cash equivalent
|
MONJUVI | General | $27.28 |
| Incyte Corporation |
Food and Beverage
Cash or cash equivalent
|
MONJUVI | General | $25.84 |
| BTG International Inc. |
Food and Beverage
In-kind items and services
|
VORAXAZE | General | $20.37 |
| BTG International Inc. |
Food and Beverage
In-kind items and services
|
VORAXAZE | General | $19.09 |
| Globus Medical, Inc. |
Travel and Lodging
Cash or cash equivalent
|
Senza | General | $10.59 |
| SPR Therapeutics, Inc |
Food and Beverage
Cash or cash equivalent
|
SPRINT PNS System | General | $10.11 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-01-07NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20160705001918
TX
0749572154
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Physicians Referral Service
1515 Holcombe Blvd, Houston, TX 770304000
Phone: 7137922121
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Psychologist - Clinical
Doctor of Philosophy (Ph.D.)
Internal Medicine - Hematology
Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)
Anesthesiology
Doctor of Osteopathic Medicine (D.O.)
Internal Medicine - Gastroenterology
Doctor of Medicine (M.D.)
Nurse Practitioner - Acute Care
Master of Science in Nursing, Advanced Practice Registered Nurse, ACNPCAG
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1515 HOLCOMBE BLVD, HOUSTON, TX 770304000 (Tel: 7137926161)
Registered at PO BOX 4439, HOUSTON, TX 772104439 (Tel: 7137922991)
NPI status registered as active in NPPES database
Registered at 11352 SUGAR PARK LN, SUGAR LAND, TX 774781406 (Tel: 2814939744)
Registered at 3406 COLLEGE ST, STE 200, BEAUMONT, TX 777014612 (Tel: 4098131677)
Recorded as RIZZA MARTINEZ-ATAIN
Nurse Practitioner (license number reported to NPPES: TX AP126922)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Nurse Practitioners in Houston
- Megan Tanner, NP-C
- Mary Cavanaugh, ANP
- Kimberley Golden, FNP-BC
- Stella Stephen, NP-C
- Anna Asagba, ACNP-BC
- Jessica Vanover, APRN
Mailing Address
Po Box 4439
Houston, TX 772104439
Phone: 7137922991