Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Tamara R Callis , MD

Pediatrics β€’ Houston, TX

Active NPI 1952588931 Individual Practitioner Female Practitioner
Practice location in NPPES

3601 N Macgregor Way
Houston, TX 770048004

Call 7138734700 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

3601 N Macgregor Way

Houston, TX 770048004

Telephone 7138734700
Organization at the Same NPPES Address or Phone
Harris County Hospital District Facility NPI 1871592204

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

NPPES lists 2 distinct additional practice-address records in Houston, TX. See the list

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

Listings do not confirm current availability, employment or a shared ownership network.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $16.60 in 2024

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 2024.

Guide: How to read an Open Payments record

NPI first issued

2008

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, β€œDoes your provider accept Medicare as full payment?”

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. Callis 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. Callis 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

1,038 active clinicians are listed under Pediatrics with a practice address in Houston, TX (5,659 in Texas).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Houston

0.2% of these 1,038 clinicians have the CMS telehealth indicator.

6% of these 1,038 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Open Payments (2024), 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

Open Payments Β· Program Year 2024
Disclosure Year:

Program year 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $16.60.

Manufacturer Payment Nature Product Type Amount ($)
GlaxoSmithKline, LLC.
Food and Beverage
In-kind items and services
SHINGRIX General $16.60

Source: CMS Open Payments, program year 2024, released June 30, 2026.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2024-09-16
Pediatrics Primary Specialty

NUCC Taxonomy Code: 208000000X

License # reported to NPPES TX M8570

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

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 - PEDIATRIC MEDICINE

Medicare Enrollment ID

I20090212000667

Enrollment State Jurisdiction

TX

PECOS Control ID

7012072747

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.

Secondary Practice Locations

13940 Bonham St

Houston, TX 770155108

Phone: 7134970950

1504 Taub Loop

Houston, TX 770301608

Phone: 7138732000

Clinicians Sharing This Practice Address or Phone

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

1 listed
NPI 1649512971

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

9 Historical Events
πŸ“
Updated Practice Location September 16, 2024

Registered at 3601 N MACGREGOR WAY, HOUSTON, TX 770048004 (Tel: 7138734700)

🏒
Secondary Practice Location Registered September 16, 2024

Additional practice office at 13940 Bonham St, Houston, TX 770155108

🏒
Secondary Practice Location Registered September 16, 2024

Additional practice office at 1504 Taub Loop, Houston, TX 770301608

βœ…
NPI Profile Active November 17, 2009

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) November 17, 2009

Registered at 1504 TAUB LOOP, HOUSTON, TX 770301608 (Tel: 7138732000)

πŸ“
Business Mailing Address (Initial Record) November 17, 2009

Registered at 2 GREENWAY PLZ, SUITE 900, HOUSTON, TX 770460297 (Tel: 7137981835)

πŸ‘€
Provider Name / Credentials (Initial Record) November 17, 2009

Recorded as TAMARA CALLIS, MD

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) November 17, 2009

Pediatrics (license number reported to NPPES: TX M8570)

🟒
Initial NPI Registration & Enumeration January 22, 2008

First registered as active Individual Practitioner in NPPES Database.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1952588931
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: January 22, 2008
Last Update: September 16, 2024
Sole Proprietor: No

Other Pediatrics Specialists in Houston

All Pediatrics Specialists in Houston

Mailing Address

2 Greenway Plz, Suite 900

Houston, TX 770460297

Phone: 7137981835

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.