Jenni K. Underhill

  • Tyler, TX
  • Anesthesiologist
NPI1306945928PAC ID1456396001
Medicare services, 2024
11
Medicare patients, 2024
129
Hospital affiliations
2
Industry payments
$177
Medical groups
4
Practice address
1000 South Beckham Ave, Tyler, TX 75701
Practice phone
Call (903) 597-0351
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UT Health Tyler

Hospital · Tyler, Texas

See all 8 affiliations

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Jenni K. Underhill is an anesthesiologist in Tyler, Texas

Jenni Underhill practices at UT Health Tyler in Tyler, Texas, part of Ardent Health.

Jenni Underhill's NPI, 1306945928, was assigned on September 21, 2006. Jenni Underhill graduated from Loma Linda University School Of Medicine in 1998. Jenni Underhill's Texas license number on file is S3765.

NPI and contact details
Medicare PAC ID
1456396001
NPI enumeration date
September 21, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(903) 597-0351
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
54
Medical school graduation
1998

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Jenni K. Underhill practices at UT Health Tyler in Tyler, Texas

Jenni Underhill's primary practice is UT Health Tyler, at 1000 South Beckham Ave, Tyler, TX 75701 in Smith County. The practice phone is (903) 597-0351.

  • UT Health Tyler
    1000 South Beckham Ave, Tyler, TX 75701 · Smith CountyPhone(903) 597-0351

Source: Dmand AI Affiliation Data

Jenni K. Underhill is affiliated with 4 sites of care and 4 medical groups

Jenni Underhill's primary practice is UT Health Tyler in Tyler, Texas, part of Ardent Health. Jenni Underhill is also affiliated with UT Health Athens. The medical group on file is Essential Anesthesia Management. Dmand AI also links Jenni Underhill to 3 more medical groups and 2 group practices and clinics, each named with a free account.

See all 8 affiliations for Jenni Underhill

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Jenni K. Underhill's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Jenni Underhill practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UT Health TylerAvailable with a free account
+3 more sites and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Jenni K. Underhill is one of 4,073 anesthesiologists in Texas

Anesthesiology is Jenni Underhill's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Jenni Underhill is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Jenni Underhill's licenses on file in 5 states: Texas, California, Montana, Washington and Idaho.

Specialties and state licenses

  • Anesthesiology, TexasPrimaryLicense S3765 · 2019 to 2025 · taxonomy 207L00000X
  • California licenseSince 2000
  • Montana licenseSince 2009
  • Washington license2008 to 2021
  • Idaho license2015 to 2017

Anesthesiologists near Jenni Underhill

Counts of anesthesiologists 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

Jenni K. Underhill billed Medicare for 11 services in 2024

CMS data shows 11 Medicare services from Jenni Underhill across 1 procedure code in 2024, for 129 Medicare patients. Medicare paid $781 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202411
Medicare patients129
Paid by Medicare$781
Procedure codes1

Jenni Underhill's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Anesthesia
2023: 132024: 1115%

Jenni Underhill compared with the Texas median for anesthesiologists, 2024

  • Jenni Underhill
  • Texas median
Medicare services
11vs 7185% below
Medicare patients
129vs 132Close to median

Medians across 3,710 anesthesiologists in Texas with Dmand AI profiles that report each measure.

Jenni Underhill's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Jenni K. Underhill treated 129 Medicare patients in 2024, average age 72

CMS counts 129 Medicare patients who saw Jenni Underhill in 2024. The largest group is 65 to 74, with 59 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 1.92, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Jenni Underhill's median patient age at 68, with 60% women.

Medicare patients, 2024129
Average age72
Average risk score1.92
Also on Medicaid13%

Jenni Underhill's Medicare patients by age, 2024

Jenni Underhill's Medicare patients by sex, 2024

  • Women6349%
  • Men6651%

Chronic conditions among Jenni Underhill's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis57%
  4. Ischemic heart disease47%
  5. Diabetes46%
  6. Chronic kidney disease39%
  7. Mood disorders38%
  8. Depression36%

Share of Medicare patients with each condition. A patient can have several.

Jenni Underhill's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women60%
  • Men40%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

How Jenni K. Underhill takes part in Medicare

Jenni Underhill accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Jenni K. Underhill received $177 in industry payments from 2018 to 2025

CMS Open Payments shows 3 general payments to Jenni Underhill from 2 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Halyard Health, Inc. paid the most, $160.

General payments to Jenni Underhill by program year, 2018 to 2025

Companies that paid Jenni Underhill the most, 2018 to 2025

Share is of all general payments to this clinician.

See all payments to Jenni Underhill

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Jenni K. Underhill graduated from Loma Linda University School Of Medicine

Jenni Underhill graduated from Loma Linda University School Of Medicine in 1998. Jenni Underhill is a member of ASA and Washington State Society of Anesthesiologists.

  1. Medical schoolLoma Linda University School Of Medicine
  2. Board certified in anesthesiologyAmerican Board of Anesthesiology
  3. Board certified in physician executiveASA Physician Executive Certification

Source: Dmand AI Professional Profile Data

Jenni K. Underhill accepts plans from 19 insurance carriers

Jenni Underhill is in network with 19 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. HMO plans come from the most carriers, 10. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Elevance
  • HCSC
  • Aetna
  • Alliant Health Plans
  • Blue Cross Blue Shield of Massachusetts
  • Molina
  • +11 more carriersWith a free account

Plan types Jenni Underhill accepts, by number of carriers

  1. HMO10
  2. PPO10
  3. Medicare7
  4. EPO3
  5. POS3
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Jenni K. Underhill's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Jenni K. Underhill

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Jenni K. Underhill's NPI number?

Jenni K. Underhill's NPI number is 1306945928. It was assigned on September 21, 2006, and it is active in the NPI Registry.

What does Jenni K. Underhill specialize in?

Jenni K. Underhill is an anesthesiologist in Tyler, Texas. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).

Where does Jenni K. Underhill practice?

Jenni Underhill practices at 1000 South Beckham Ave, Tyler, TX 75701. Jenni Underhill's primary practice is UT Health Tyler in Tyler, Texas, part of Ardent Health. Dmand AI also links Jenni Underhill to 3 medical groups and 2 group practices and clinics.

What is Jenni K. Underhill's office phone number?

The practice phone on file for Jenni Underhill is (903) 597-0351.

What is Jenni K. Underhill's medical license number?

Jenni Underhill's Texas license number on file is S3765, one of the licenses on file in 5 states.

Which states has Jenni K. Underhill been licensed in?

Dmand AI has state licenses on file for Jenni Underhill in Texas (2019 to 2025), California (since 2000), Montana (since 2009), Washington (2008 to 2021) and Idaho (2015 to 2017).

Which hospitals is Jenni K. Underhill affiliated with?

Jenni Underhill practices at UT Health Tyler in Tyler, Texas. Jenni Underhill is also affiliated with UT Health Athens.

What medical group is Jenni K. Underhill part of?

Jenni Underhill is linked to Essential Anesthesia Management. Dmand AI links Jenni Underhill to 3 more medical groups.

Does Jenni K. Underhill accept Medicare?

Yes. CMS data shows Jenni Underhill billed Medicare for 11 services in 2024, and Jenni Underhill accepts Medicare assignment.

How many Medicare patients does Jenni K. Underhill see?

CMS counts 129 Medicare patients who saw Jenni Underhill in 2024, with an average age of 72.

Show 6 more questionsShow fewer questions

Is Jenni K. Underhill board certified?

Yes. Jenni Underhill is board certified in anesthesiology by the American Board of Anesthesiology.

What services does Jenni K. Underhill bill to Medicare?

In 2024, Jenni Underhill's most billed Medicare services were anesthesia (00910).

Where did Jenni K. Underhill go to medical school?

Jenni Underhill graduated from Loma Linda University School Of Medicine in 1998.

Has Jenni K. Underhill received payments from drug or device companies?

CMS Open Payments shows $177 in general payments to Jenni Underhill from 2 companies from 2018 to 2025. The largest total came from Halyard Health, Inc.

How long has Jenni K. Underhill been practicing?

Jenni Underhill graduated from medical school in 1998, 28 years ago.

What insurance does Jenni K. Underhill accept?

Jenni Underhill is in network with 19 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. HMO plans come from the most carriers, 10. Check the plan with the practice before a visit.

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