Estella Abam , APRN-C
Nurse Practitioner β’ Houston, TX
2646 S Loop W Ste 220
Houston, TX 770542640
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on February 25, 2011; this date does not establish years in practice.
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Published CMS data list 13 Medicare Part D prescriptions, including refills, in 2021.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2021. Published rows only; this is not a quality measure.
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Published Part D records, 2021:
- Atorvastatin Calcium β 13 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2021. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table Β· Guide: How to read Medicare Part D prescriber data
Practice Location & Contact Primary Location
2646 S Loop W Ste 220
Houston, TX 770542640
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
39 standardized 30-day fills in 2021
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$85 in 2021
The total cost of these prescriptions in 2021, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2021.
Open Payments general payments, program year 2025
All general payments: $1,079.72 across 15 records.
By nature of payment
- Food and Beverage: $1,079.72 across 15 records.
Reporting-company totals (3 largest of 8)
- Amgen Inc.: $282.54 across 3 records.
- Gilead Sciences, Inc.: $255.28 across 2 records.
- Bayer Healthcare Pharmaceuticals Inc.: $154.51 across 3 records.
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).
NPI first issued
2011
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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)
Estella Abam 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 Estella Abam 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
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Estella Abam are from 2021.
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.
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Medicare Part D prescriptions
CMS data for Part D prescriptions are available for 2021 only.
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30-day fills
CMS data for 30-day fills are available for 2021 only.
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Part D drug cost
CMS data for Part D drug cost are available for 2021 only.
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $639.00 in 2021 to $1,079.72 in 2025.
- 2021: $639.00
- 2022: $121.77
- 2023: $246.53
- 2024: $253.94
- 2025: $1,079.72
Sources: CMS Medicare Part D Prescribers (2021), 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): 15 records totaling $1,079.72.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Amgen Inc. |
Food and Beverage
In-kind items and services
|
REPATHA | General | $136.01 |
| Gilead Sciences, Inc. |
Food and Beverage
In-kind items and services
|
Vemlidy | General | $134.66 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
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OTEZLA | General | $121.52 |
| Gilead Sciences, Inc. |
Food and Beverage
In-kind items and services
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Biktarvy | General | $120.62 |
| Kowa Pharmaceuticals America, Inc. |
Food and Beverage
In-kind items and services
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ZORYVE | General | $115.84 |
| Alkermes, Inc. |
Food and Beverage
In-kind items and services
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LYBALVI | General | $100.82 |
| Bayer Healthcare Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
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Kerendia | General | $98.89 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
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FLUMIST QUADRIVALENT | General | $73.90 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Ozempic | General | $32.02 |
| Bayer Healthcare Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
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Kerendia | General | $31.81 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
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REPATHA | General | $25.01 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Rybelsus | General | $23.86 |
| Bayer Healthcare Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
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Kerendia | General | $23.81 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Rybelsus | General | $20.83 |
| Exact Sciences Corporation |
Food and Beverage
In-kind items and services
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Cologuard Collection Kit | General | $20.12 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2021.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 13 | 1,170 | $84.80 | β |
Source: CMS Part D by Provider and Drug, 2021; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2026-05-23NUCC 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.
NUCC Taxonomy Code: 363LA2200X
NUCC Taxonomy Code: 363LF0000X
NUCC Taxonomy Code: 363LG0600X
NUCC Taxonomy Code: 363LP2300X
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20191125000057
TX
8921264482
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 2646 S LOOP W STE 220, HOUSTON, TX 770542640
Nurse Practitioner (license number reported to NPPES: TX AP142801)
Nurse Practitioner (license number reported to NPPES: TX AP142801)
Registered at 2646 S LOOP W STE 220, HOUSTON, TX 770542640 (Tel: 8324551161)
Recorded as ESTELLA ABAM, APRN-C
Recorded as ESTELLA ABAM, APRN
Nurse Practitioner (license number reported to NPPES: TX AP142801)
NPI status registered as active in NPPES database
Registered at 8511 OLD BROOK DR, HOUSTON, TX 770712442 (Tel: 7133677371)
Registered at 8511 OLD BROOK DR, HOUSTON, TX 770712442
Recorded as ESTELLA ABAM, RN,
Case Manager/Care Coordinator (license number reported to NPPES: TX 220040910)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Nurse Practitioners in Houston
- Traci Waters, CNP
- Sharde Angelle
- Megan Tanner, NP-C
- Elizabeth Mbutu-Lomeli, NP
- Ellen Mullen, RN, ANP, GNP
- Marcia Murphy, NURSE PRACTITIONER
Mailing Address
2646 S Loop W Ste 220
Houston, TX 770542640