Trudy B. Istre, FNP-C, RN
- Medicare patients, 2024
- 146
- Part D claims, 2024
- 3,479
- Hospital affiliations
- 1
- Industry payments
- $415
- Medical groups
- 3
- Practice address
- 6550 Fannin St, Houston, TX 77030
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Texas Children's Hospital - Mfm the Methodist Hospital - HOPD
Childrens Hospital outpatient department · Houston, Texas
Find Trudy Istre's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Trudy B. Istre is a nurse practitioner in Houston, Texas
Trudy Istre practices at Texas Children's Hospital - Mfm the Methodist Hospital - HOPD in Houston, Texas.
Trudy Istre's NPI, 1346581931, was assigned on March 7, 2013. Trudy Istre holds Texas license AP123347.
- NPI
- 1346581931NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486885779
- NPI enumeration date
- March 7, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Trudy B. Istre practices at Texas Children's Hospital - Mfm the Methodist Hospital - HOPD in Houston, Texas
Trudy Istre's primary practice is Texas Children's Hospital - Mfm the Methodist Hospital - HOPD, at 6550 Fannin St, Houston, TX 77030.
- Texas Children's Hospital - Mfm the Methodist Hospital - HOPD6550 Fannin St, Houston, TX 77030
Source: Dmand AI Affiliation Data
Trudy B. Istre is affiliated with 4 sites of care and 3 medical groups
Trudy Istre's primary practice is Texas Children's Hospital - Mfm the Methodist Hospital - HOPD in Houston, Texas. Trudy Istre is also affiliated with Houston Methodist Baytown Hospital. The medical group on file is Houston Methodist Specialty Physician Group. Dmand AI also links Trudy Istre to 2 more medical groups, 1 group practice or clinic and 1 home health agency, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Trudy B. Istre's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Trudy Istre practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Texas Children's Hospital - Mfm the Methodist Hospital - HOPD | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Trudy B. Istre is one of 3,565 nurse practitioners in Texas
Nurse practitioner is Trudy Istre's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Trudy Istre is licensed in Texas.
Specialties and state licenses
- Nurse practitioner, TexasPrimary
Nurse practitioners near Trudy Istre
Counts of nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Trudy B. Istre treated 146 Medicare patients in 2024, average age 74
CMS counts 146 Medicare patients who saw Trudy Istre in 2024. The largest group is 65 to 74, with 79 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.32, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Trudy Istre's median patient age at 63, with 67% women.
Trudy Istre's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Trudy Istre's Medicare patients by sex, 2024
- Women9162%
- Men5538%
Chronic conditions among Trudy Istre's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Ischemic heart disease38%
- Diabetes36%
- Mood disorders31%
- Chronic kidney disease30%
- Depression29%
Share of Medicare patients with each condition. A patient can have several.
Trudy Istre's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women67%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Trudy B. Istre wrote 3,479 Medicare Part D claims in 2024
In 2024, Trudy Istre wrote 3,479 Medicare Part D claims for 560 patients. 85% of them were for generic drugs.
Trudy Istre's Part D claims by kind of drug, 2024
- Generic2,968 claims85%
- Brand-name499 claims14%
- Other12 claims0%
Drug classes CMS tracks in Trudy Istre's Part D claims, 2024
- Opioids1%18 of 3,479 claims
- Antibiotics4%153 of 3,479 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Trudy B. Istre offers telehealth to Medicare patients
Trudy Istre accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Trudy Istre as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Trudy B. Istre received $415 in industry payments in 2025
CMS Open Payments shows 22 general payments to Trudy Istre from 13 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $69.
Companies that paid Trudy Istre the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Trudy B. Istre's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Trudy B. Istre
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Trudy B. Istre's NPI number?
Trudy B. Istre's NPI number is 1346581931. It was assigned on March 7, 2013, and it is active in the NPI Registry.
What does Trudy B. Istre specialize in?
Trudy B. Istre is a nurse practitioner in Houston, Texas. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Trudy B. Istre practice?
Trudy Istre practices at 6550 Fannin St, Houston, TX 77030. Trudy Istre's primary practice is Texas Children's Hospital - Mfm the Methodist Hospital - HOPD in Houston, Texas. Dmand AI also links Trudy Istre to 2 medical groups, 1 group practice or clinic and 1 home health agency.
What is Trudy B. Istre's medical license number?
Trudy Istre holds Texas license AP123347.
Which hospitals is Trudy B. Istre affiliated with?
Trudy Istre is affiliated with Houston Methodist Baytown Hospital.
What medical group is Trudy B. Istre part of?
Trudy Istre is linked to Houston Methodist Specialty Physician Group. Dmand AI links Trudy Istre to 2 more medical groups.
Does Trudy B. Istre accept Medicare?
Yes. CMS lists Trudy Istre as accepting Medicare assignment.
Does Trudy B. Istre offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Trudy Istre as offering telehealth services.
How many Medicare patients does Trudy B. Istre see?
CMS counts 146 Medicare patients who saw Trudy Istre in 2024, with an average age of 74.
Has Trudy B. Istre received payments from drug or device companies?
CMS Open Payments shows $415 in general payments to Trudy Istre from 13 companies from 2025 to 2025. The largest total came from Novo Nordisk Inc.
How long has Trudy B. Istre been practicing?
Trudy Istre graduated from medical school in 2008, 18 years ago.
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