Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Nicholas John Gray , PHYSICIAN ASSISTANT

Physician Assistant โ€ข Houston, TX

Active NPI 1124513817 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

7026 Old Katy Rd Ste 276
Houston, TX 770242187

Call 7133580562 Location details and other listings
Medical Disclaimer

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

Practice Address

7026 Old Katy Rd Ste 276

Houston, TX 770242187

Telephone 7133580562
Other Listings in Public Data

NPPES lists 1 additional practice-address record in Houston, TX. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Singleton Associates Pa. 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

Graduation Year

2018

Medicare patients

122 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $14,486 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.

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 $11,216 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

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.

30-day fills

19 standardized 30-day fills in 2019

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

$142 in 2019

The total cost of these prescriptions in 2019, paid by Medicare drug plans, patients and other payers together.

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 โ€“ by Provider and Drug, 2019.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $146.89 in 2025

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2025.

Guide: How to read an Open Payments record

Years since graduation

8 years (graduated 2018)

CMS Doctors and Clinicians data list 2018 as the year this clinician finished professional 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

2018

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.

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, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

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.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Nicholas Gray 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.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Nicholas Gray 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.

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.

Guide: What ordering and referring status means

Compared with the same specialty in Houston and Texas

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 60% of clinicians listed under Physician Assistant in Houston, TX (2024, 660 clinicians with data). Median for this group: 124. Middle half: 47 to 244.

Close to the middle for clinicians listed under Physician Assistant in Texas (2024, 4,400 clinicians with data). Median for this group: 211. Middle half: 76 to 593.

Medicare-allowed amount

A higher Medicare-allowed amount than 60% of clinicians listed under Physician Assistant in Houston, TX (2024, 660 clinicians with data). Median for this group: $9,877. Middle half: $3,535 to $19,386.

Close to the middle for clinicians listed under Physician Assistant in Texas (2024, 4,400 clinicians with data). Median for this group: $15,434. Middle half: $6,111 to $35,691.

Paid by Medicare

A higher Medicare payment amount than 65% of clinicians listed under Physician Assistant in Houston, TX (2024, 660 clinicians with data). Median for this group: $7,071. Middle half: $2,588 to $14,610.

Close to the middle for clinicians listed under Physician Assistant in Texas (2024, 4,400 clinicians with data). Median for this group: $11,276. Middle half: $4,395 to $26,238.

Medicare Part D

Comparisons use 2024 data. The latest CMS data for Nicholas Gray are from 2019.

1,802 active clinicians are listed under Physician Assistant with a practice address in Houston, TX (11,008 in Texas).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Houston

17.8% of these 1,802 clinicians have the CMS telehealth indicator.

53.1% of these 1,802 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2019), 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

Open Payments ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): fewer than 11 records totaling $146.89.

Manufacturer Payment Nature Product Type Amount ($)
Becton, Dickinson and Company
Food and Beverage
In-kind items and services
Trek General $146.89

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2018โ€“2023 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, 2019โ€“2024; 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
32555 Aspiration of fluid from chest cavity using imaging guidance
73 46 $2137.00 $91.39
49083 Drainage of fluid from abdominal cavity using imaging guidance
71 22 $1931.00 $81.78
76942 Ultrasonic guidance for needle placement
14 14 $400.00 $25.35
10005 Fine needle aspiration biopsy using ultrasound guidance, first growth
13 13 $1231.00 $60.17
62328 Removal of spinal fluid with lower back spinal tap for diagnostic test using imaging guidance
13 12 $1508.00 $67.04

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.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2019.

CMS Part D ยท Data Year 2019
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Acetaminophen-Codeine Acetaminophen With Codeine 19 143 $141.51 14

Source: CMS Part D by Provider and Drug, 2019; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2020-04-09
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES TX PA12186

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Military Health Care Provider

NUCC Taxonomy Code: 171000000X

Active duty military health care providers not otherwise classified who need to be separately identified for operational, clinical, or administrative processes.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Texas Medical Board.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20181016000131

Enrollment State Jurisdiction

TX

PECOS Control ID

7315299617

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

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

Singleton Associates Pa

7600 Beechnut St, Houston, TX 770744302

Phone: 7134565000

Singleton Associates Pa

6801 Emmett F Lowry Expy, Texas City, TX 775912500

Phone: 7134613573

Singleton Associates Pa

38 Lakeview Dr, Galveston, TX 775511564

Phone: 2818704592

Singleton Associates Pa

8780 Hwy 6 B, Friendswood, TX 77549

Phone: 2817781802

Singleton Associates Pa

1110 N Sarah Dewitt Dr, Gonzales, TX 786293311

Phone: 8306727581

Singleton Associates Pa

12141 Richmond Ave, Houston, TX 770822408

Phone: 7134613573

Singleton Associates Pa

500 W Medical Ctr Blvd, Webster, TX 775984220

Phone: 2813322511

Singleton Associates Pa

18951 N Memorial Dr, Humble, TX 773384217

Phone: 2815407700

Singleton Associates Pa

12801 Hacienda Rdg, Austin, TX 787387652

Phone: 7134613573

Singleton Associates Pa

500 Medical Ctr Blvd, Conroe, TX 773042899

Phone: 9365397100

Singleton Associates Pa

18951 Memorial N, Humble, TX 773384217

Phone: 2815407700

Secondary Practice Locations

18333 Egret Bay Blvd Ste 200

Houston, TX 770583200

Phone: 2818411233

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

27 listed
Dr. Vrushali Bachhav , MD

Radiology - Diagnostic Radiology

NPI 1669834719

Doctor of Medicine (M.D.)

Dr. Samuel Baird , MD

Radiology - Diagnostic Radiology

NPI 1467442939

Doctor of Medicine (M.D.)

Dr. Ahmad Bakdalieh , MD

Radiology - Diagnostic Radiology

NPI 1861874646

Doctor of Medicine (M.D.)

Dr. Amitabha Banerjee , MD

Radiology - Diagnostic Radiology

NPI 1588653083

Doctor of Medicine (M.D.)

Dr. Aaron Baxter , MD

Radiology - Vascular & Interventional Radiology

NPI 1912221821

Doctor of Medicine (M.D.)

Dr. Curtis Cammarata , MD

Radiology - Diagnostic Radiology

NPI 1477521201

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

10 Historical Events
๐Ÿ“
Updated Practice Location April 09, 2020

Registered at 7026 OLD KATY RD STE 276, HOUSTON, TX 770242187 (Tel: 7133580562)

๐Ÿ“
Updated Business Mailing Address April 09, 2020

Registered at 7026 OLD KATY RD STE 276, HOUSTON, TX 770242187 (Tel: 7133580562)

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) April 09, 2020

Military Health Care Provider

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) January 28, 2020

Physician Assistant (license number reported to NPPES: TX PA12186)

โœ…
NPI Profile Active June 26, 2018

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) June 26, 2018

Registered at 18333 EGRET BAY BLVD STE 200, HOUSTON, TX 770583200 (Tel: 2818411233)

๐Ÿ“
Business Mailing Address (Initial Record) June 26, 2018

Registered at 721 PEGASUS LN, LEAGUE CITY, TX 775732080 (Tel: 2818411233)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) June 26, 2018

Recorded as NICHOLAS GRAY, PHYSICIAN ASSISTANT

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) June 26, 2018

Military Health Care Provider

๐ŸŸข
Initial NPI Registration & Enumeration June 26, 2018

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1124513817
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 26, 2018
Last Update: April 09, 2020
Sole Proprietor: No

Other Physician Assistants in Houston

All Physician Assistants in Houston

Mailing Address

7026 Old Katy Rd Ste 276

Houston, TX 770242187

Phone: 7133580562

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.