Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Robert J Tom , MD

Anesthesiology โ€ข Houston, TX

Active NPI 1144219692 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

1500 Citywest Blvd Ste 300
Houston, TX 770422549

Call 7136204000 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

1500 Citywest Blvd Ste 300

Houston, TX 770422549

Telephone 7136204000
Fax 7134584229
Organization at the Same NPPES Address or Phone
U S Anesthesia Partners Of Texas, Pa Facility NPI 1023565413

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: U S Anesthesia Partners Of Texas, 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

Medical School

Saint Louis University School Of Medicine

Graduation Year

1991

Medicare patients

301 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 $20,193 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 $16,006 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.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $17.55 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

35 years (graduated 1991)

CMS Doctors and Clinicians data list 1991 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

2005

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)

Dr. Tom 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 Dr. Tom 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 75% of clinicians listed under Anesthesiology in Houston, TX (2024, 588 clinicians with data). Median for this group: 101. Middle half: 43 to 195.

More Medicare Part B services than 75% of clinicians listed under Anesthesiology in Texas (2024, 2,455 clinicians with data). Median for this group: 94. Middle half: 41 to 197.

Medicare-allowed amount

A higher Medicare-allowed amount than 70% of clinicians listed under Anesthesiology in Houston, TX (2024, 588 clinicians with data). Median for this group: $10,337. Middle half: $4,494 to $21,849.

A higher Medicare-allowed amount than 70% of clinicians listed under Anesthesiology in Texas (2024, 2,455 clinicians with data). Median for this group: $10,871. Middle half: $4,582 to $22,286.

Paid by Medicare

A higher Medicare payment amount than 70% of clinicians listed under Anesthesiology in Houston, TX (2024, 588 clinicians with data). Median for this group: $8,253. Middle half: $3,502 to $17,231.

A higher Medicare payment amount than 70% of clinicians listed under Anesthesiology in Texas (2024, 2,455 clinicians with data). Median for this group: $8,547. Middle half: $3,612 to $17,463.

1,143 active clinicians are listed under Anesthesiology with a practice address in Houston, TX (4,666 in Texas).

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

Telehealth indicator in Houston

1.1% of these 1,143 clinicians have the CMS telehealth indicator.

72.4% of these 1,143 clinicians are listed by CMS as accepting Medicare assignment.

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

Open Payments ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): fewer than 11 records totaling $17.55.

Manufacturer Payment Nature Product Type Amount ($)
Merck Sharp & Dohme LLC
Food and Beverage
In-kind items and services
BRIDION General $17.55

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 2016โ€“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, 2017โ€“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
00142 Anesthesia for lens surgery
68 61 $1621.65 $113.12
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope
48 48 $1446.38 $96.28
00811 Anesthesia for other procedure on large bowel using an endoscope
29 29 $1219.50 $82.98
00812 Anesthesia for exam of colon using an endoscope
21 21 $1044.00 $57.91
01922 Anesthesia for x-ray or radiation therapy
14 14 $2032.07 $137.15
00813 Anesthesia for procedure on small and large bowel using an endoscope
13 13 $1806.92 $121.45
64415 Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus)
11 11 $1904.00 $68.94

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: 2020-08-19
Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

License # reported to NPPES TX J8397

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

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

Additional State Medicaid & Healthcare Payer Identifiers

Other Identifier Bcbs
8AG833 (TX)

Medicare (PECOS) Enrollment & Ordering Eligibility

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

PRACTITIONER - ANESTHESIOLOGY

Medicare Enrollment ID

I20080414000280

Enrollment State Jurisdiction

TX

PECOS Control ID

7719064849

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

U S Anesthesia Partners Of Texas, Pa

7737 Southwest Fwy, Houston, TX 770741807

Phone: 7133386464

Clinicians Sharing This Practice Address or Phone

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

40 listed
Mary Altorfer , CRNA

Nurse Anesthetist, Certified Registered

NPI 1013296615

Certified Registered Nurse Anesthetist

Robert Bourgeois , CRNA

Nurse Anesthetist, Certified Registered

NPI 1013076736

Certified Registered Nurse Anesthetist

Glaise Chaisson , CRNA

Nurse Anesthetist, Certified Registered

NPI 1033559992

Certified Registered Nurse Anesthetist

Patrick Dauterive , CRNA

Nurse Anesthetist, Certified Registered

NPI 1053650671

Certified Registered Nurse Anesthetist

NPI 1003010661

Doctor of Medicine (M.D.)

Darlene Dobson

Nurse Anesthetist, Certified Registered

NPI 1003965229

Career & Practice History Timeline

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

8 Historical Events
๐Ÿ“
Updated Practice Location August 19, 2020

Registered at 1500 CITYWEST BLVD STE 300, HOUSTON, TX 770422549 (Tel: 7136204000)

๐Ÿ“
Updated Business Mailing Address June 18, 2020

Registered at PO BOX 840853, DALLAS, TX 752840853 (Tel: 7136593284)

โœ…
NPI Profile Active April 30, 2008

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) April 30, 2008

Registered at 5410 WEST LOOP S, BELLAIRE, TX 774012103 (Tel: 7136593284)

๐Ÿ“
Business Mailing Address (Initial Record) April 30, 2008

Registered at 804 SCOTT NIXON MEMORIAL DR, AUGUSTA, GA 309072464 (Tel: 7136593284)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) April 30, 2008

Recorded as ROBERT TOM, MD

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) April 30, 2008

Anesthesiology (license number reported to NPPES: TX J8397)

๐ŸŸข
Initial NPI Registration & Enumeration October 18, 2005

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1144219692
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: October 18, 2005
Last Update: August 19, 2020
Sole Proprietor: No

Other Anesthesiology Specialists in Houston

All Anesthesiology Specialists in Houston

Mailing Address

Po Box 840853

Dallas, TX 752840853

Phone: 7136593284

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.