Gregory Lawrence Walker , ACNPC-AG
Nurse Practitioner - Acute Care โข Henderson, NV
10624 S Eastern Ave Ste A-955
Henderson, NV 890522982
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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Gregory Walker is listed in NPPES under Nurse Practitioner - Acute Care.
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NPI assigned on September 25, 2020; this date does not establish years in practice.
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Published CMS data list 278 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99232 โ Subsequent hospital care with moderate levelof medical decision making: 151 service units.
- 99233 โ Subsequent hospital care with moderate levelof medical decision making: 78 service units.
- 99222 โ Initial hospital care with straightforward or low-level medical decision making: 33 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 4 records in the table ยท Guide: How to read Medicare Part B data
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Close to the middle for Medicare Part B services among clinicians listed under Nurse Practitioner - Acute Care in Henderson, NV (2024, 23 clinicians with data). Median for this group: 272. Middle half: 109 to 809.
Close to the middle for Medicare Part B services among clinicians listed under Nurse Practitioner - Acute Care in Nevada (2024, 91 clinicians with data). Median for this group: 340. Middle half: 111 to 653.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 88 in 2022 to 278 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2022โ2024.
Practice Location & Contact Primary Location
10624 S Eastern Ave Ste A-955
Henderson, NV 890522982
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: Qureshi Al-Owir Pllc. 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
2020
What Public CMS Data Show
Nurse Practitioner - Acute Care: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
98 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $23,103 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $18,191 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Open Payments general payments, program year 2025
All general payments: $159.05 across 2 records.
By nature of payment
- Food and Beverage: $159.05 across 2 records.
Reporting-company totals
- Ceribell, Inc.: $159.05 across 2 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).
Years since graduation
6 years (graduated 2020)
CMS Doctors and Clinicians data list 2020 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
2020
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, โDoes your provider accept Medicare as full payment?โ
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)
Gregory Walker 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 Gregory Walker 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 Henderson and Nevada
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Nurse Practitioner - Acute Care in Henderson, NV (2024, 23 clinicians with data). Median for this group: 272. Middle half: 109 to 809.
Close to the middle for clinicians listed under Nurse Practitioner - Acute Care in Nevada (2024, 91 clinicians with data). Median for this group: 340. Middle half: 111 to 653.
Medicare-allowed amount
Close to the middle for clinicians listed under Nurse Practitioner - Acute Care in Henderson, NV (2024, 23 clinicians with data). Median for this group: $29,440. Middle half: $15,055 to $67,324.
A lower Medicare-allowed amount than 60% of clinicians listed under Nurse Practitioner - Acute Care in Nevada (2024, 91 clinicians with data). Median for this group: $32,034. Middle half: $12,643 to $55,640.
Paid by Medicare
Close to the middle for clinicians listed under Nurse Practitioner - Acute Care in Henderson, NV (2024, 23 clinicians with data). Median for this group: $20,316. Middle half: $11,631 to $51,791.
A lower Medicare payment amount than 60% of clinicians listed under Nurse Practitioner - Acute Care in Nevada (2024, 91 clinicians with data). Median for this group: $25,339. Middle half: $8,935 to $43,934.
35 active clinicians are listed under Nurse Practitioner - Acute Care with a practice address in Henderson, NV (182 in Nevada).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Henderson
5.7% of these 35 clinicians have the CMS telehealth indicator.
80% of these 35 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 B services
Medicare Part B services increased 216% from 88 in 2022 to 278 in 2024.
- 2022: 88
- 2023: 165
- 2024: 278
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Medicare-allowed amount
Medicare-allowed amount increased 59% from $14,523 in 2022 to $23,103 in 2024.
- 2022: $14,523
- 2023: $14,998
- 2024: $23,103
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Paid by Medicare
Paid by Medicare increased 59% from $11,434 in 2022 to $18,191 in 2024.
- 2022: $11,434
- 2023: $11,951
- 2024: $18,191
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $67.30 in 2022 to $159.05 in 2025.
- 2022: $67.30
- 2024: $42.90
- 2025: $159.05
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท 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 โ December 31, 2025): fewer than 11 records totaling $159.05.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Ceribell, Inc. |
Food and Beverage
Cash or cash equivalent
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POCKET EEG DEVICE | General | $79.55 |
| Ceribell, Inc. |
Food and Beverage
Cash or cash equivalent
|
POCKET EEG DEVICE | General | $79.50 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2021โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2022โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
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151 | 36 | $198.72 | $61.76 |
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99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
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78 | 44 | $280.92 | $96.52 |
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99222
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
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33 | 26 | $331.00 | $105.55 |
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99291
Critical care, first 30-74 minutes
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16 | 16 | $660.00 | $172.85 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2020-11-19NUCC Taxonomy Code: 363LA2100X
NUCC Taxonomy Code: 363LC0200X
NUCC Taxonomy Code: 363LG0600X
NUCC Taxonomy Code: 364SA2200X
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20201224000389
NV
6002228673
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
Qureshi Al-Owir Pllc
1050 W Galleria Dr, Henderson, NV 890114800
Phone: 7029637000
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Nurse Practitioner - Acute Care
ACNPCAG
Internal Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner
Advanced Practice Registered Nurse, Family Nurse Practitioner (Certified)
Internal Medicine - Infectious Disease
Doctor of Medicine (M.D.)
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 10624 S EASTERN AVE STE A-955, HENDERSON, NV 890522982 (Tel: 7024077700)
Registered at 10624 S EASTERN AVE STE A-955, HENDERSON, NV 890522982 (Tel: 7024077700)
Nurse Practitioner (license number reported to NPPES: NV 834774)
NPI status registered as active in NPPES database
Registered at 7600 S RAINBOW BLVD APT 2044, LAS VEGAS, NV 891395493 (Tel: 9517953547)
Registered at 7600 S RAINBOW BLVD APT 2044, LAS VEGAS, NV 891395493 (Tel: 9517953547)
Recorded as GREGORY WALKER, ACNPC-AG
Nurse Practitioner (license number reported to NPPES: NV 834774)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Nurse Practitioner - Acute Care Specialists in Henderson
- Sarah Day, NP
- Laurie Osborne, APRN
- Amanda Cowan, AGACNP
- Jonathon Tagle, ACNPC-AG
- Bryce Pacheco, APRN-BC
- Lindsay Barnes, ACNP
Mailing Address
10624 S Eastern Ave Ste A-955
Henderson, NV 890522982
Phone: 7024077700