Am Surg
Anus NeoplasmsLeiomyosarcoma
Dr. Liza Opper Thalheimer, MD
NPI1720249469PAC ID8921387218
- Medicare services, 2024
- 14
- Medicare patients, 2024
- 21
- Part D claims, 2020
- 42
- Publications
- 2
- Clinical trials
- 1
- Practice address
- 3810 Northdale Blvd, Tampa, FL 33624
- Practice phone
- Call (800) 991-6117
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
United Vein & Vascular Centers
Tampa, Florida
Find Dr. Thalheimer's professional email, personal email and mobile number
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Dr. Liza Opper Thalheimer is a surgical oncologist in Tampa, Florida
Dr. Thalheimer practices at United Vein & Vascular Centers in Tampa, Florida.
Dr. Thalheimer's NPI, 1720249469, was assigned on June 24, 2008. Dr. Thalheimer graduated from West Virginia University School Of Medicine in 2008. Dr. Thalheimer holds Texas license R0334.
NPI and contact details
- NPI
- 1720249469NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921387218
- NPI enumeration date
- June 24, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (800) 991-6117
- 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 Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Liza Opper Thalheimer practices at United Vein & Vascular Centers in Tampa, Florida
Dr. Thalheimer's primary practice is United Vein & Vascular Centers, at 3810 Northdale Blvd, Tampa, FL 33624 in Hillsborough County. The practice phone is (800) 991-6117.
- United Vein & Vascular Centers3810 Northdale Blvd, Tampa, FL 33624 · Hillsborough CountyPhone(800) 991-6117
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Liza Opper Thalheimer is affiliated with 3 sites of care and 2 medical groups
Dr. Thalheimer's primary practice is United Vein & Vascular Centers in Tampa, Florida. The medical group on file is Texas Vein and Wellness Institute. Dmand AI also links Dr. Thalheimer to 2 more group practices and clinics and 1 medical group, each named with a free account.
United Vein & Vascular CentersPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Liza Opper Thalheimer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thalheimer practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| United Vein & Vascular Centers | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Liza Opper Thalheimer is one of 132 surgical oncologists in Florida
Surgical oncology is Dr. Thalheimer's primary specialty in the NPI Registry, under taxonomy code 2086X0206X. Dr. Thalheimer is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Thalheimer's licenses on file in 5 states: Texas, South Dakota, Arizona, Oregon and Pennsylvania.
Specialties and state licenses
- Surgical oncology, TexasPrimary
- South Dakota license
- Arizona license
- Oregon license
- Pennsylvania license
Clinical focus
Dmand AI lists mastectomy among the conditions Dr. Thalheimer treats.
Surgical oncologists near Dr. Thalheimer
Counts of surgical oncologists 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
Dr. Liza Opper Thalheimer billed Medicare for 14 services in 2024
CMS data shows 14 Medicare services from Dr. Thalheimer across 1 procedure code in 2024, for 21 Medicare patients. Medicare paid $2,072 for them. Every service was in an office.
Medicare services, 202414
Medicare patients21
Paid by Medicare$2,072
Procedure codes1
Dr. Thalheimer's Medicare services by type, 2020 to 2024
- 2020
- 2024
- Tests and treatments
- 2020: 02024: 14
- Surgery
- 2020: 1012024: 0100%
- Office and hospital visits
- 2020: 1512024: 0100%
Dr. Thalheimer compared with the Florida median for surgical oncologists, 2024
- Dr. Thalheimer
- Florida median
- Medicare services
- 14vs 18392% below
- Medicare patients
- 21vs 11081% below
- Part D claims
- 42vs 3231% above
Medians across 126 surgical oncologists in Florida with Dmand AI profiles that report each measure.
Dr. Thalheimer'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.
Need commercial claims for Dr. Thalheimer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Thalheimer and other surgical oncologists in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Liza Opper Thalheimer treated 21 Medicare patients in 2024, average age 74
CMS counts 21 Medicare patients who saw Dr. Thalheimer in 2024. 71% of them have high cholesterol, and 67% have arthritis. Their average risk score is 1.07, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Thalheimer's median patient age at 63, with 72% women.
Medicare patients, 202421
Average age74
Average risk score1.07
Chronic conditions among Dr. Thalheimer's Medicare patients, 2024
- High cholesterol71%
- Arthritis67%
- High blood pressure57%
Share of Medicare patients with each condition. A patient can have several.
Dr. Thalheimer'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
- Women72%
- Men27%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Liza Opper Thalheimer wrote 42 Medicare Part D claims in 2020
In 2020, Dr. Thalheimer wrote 42 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $112 in total drug cost. In 2019, CMS named 63 claims across 2 drugs.
Part D claims, 202042
Drugs named by CMS2
Total drug cost$112
Dr. Thalheimer's most prescribed drugs by claims, 2020
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 632020: 4233%
Drugs named by CMS: 2 in 2020, 2 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Liza Opper Thalheimer ranks in the 97th percentile for varicose vein removal in Medicare
Dr. Thalheimer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 521 procedures of varicose vein removal by Dr. Thalheimer, more than 97% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Thalheimer ranks in Medicare procedure volume
- Varicose vein removal
- 97th percentile521 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Liza Opper Thalheimer has 2 publications on record
Dmand AI links 2 papers to Dr. Thalheimer. Dr. Thalheimer has published most often in Am Surg. Dr. Thalheimer's most frequent co-author is Bryan K. Richmond, MD.
Papers2
Dr. Thalheimer's most frequent co-authors
Recent publications by Dr. Thalheimer
HemodynamicsLaparoscopyMesenteric Vascular Occlusion
See who Dr. Thalheimer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Thalheimer works with, so you can find a warm path to the right surgical oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Liza Opper Thalheimer has worked on 1 clinical trial
Dmand AI links Dr. Thalheimer to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Carcinoma, Intraductal, Noninfiltrating and Breast Carcinoma In Situ.
Conditions in Dr. Thalheimer's trials
- Carcinoma, Intraductal, Noninfiltrating
- Breast Carcinoma In Situ
Investigators on the most trials with Dr. Thalheimer
- Ashley Ann Albert1 shared trial
- Batul Hamza Al-Zubeidy, MD1 shared trial
- John W. Ames, MD1 shared trial
Recent clinical trials with Dr. Thalheimer
Carcinoma, Intraductal, NoninfiltratingBreast Carcinoma In Situ7-gene biosignature
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Liza Opper Thalheimer received $2,188 in industry payments from 2016 to 2025
CMS Open Payments shows 66 general payments to Dr. Thalheimer from 34 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $409.
General payments to Dr. Thalheimer by program year, 2016 to 2025
Companies that paid Dr. Thalheimer the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Liza Opper Thalheimer has 1 award and honors on record
Dmand AI lists 1 award for Dr. Thalheimer.
Awards and honors for Dr. Thalheimer
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Liza Opper Thalheimer graduated from West Virginia University School Of Medicine
Dr. Thalheimer graduated from West Virginia University School Of Medicine in 2008. Dr. Thalheimer is a member of ACS, ASBS and SSO.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Liza Opper Thalheimer accepts plans from 22 insurance carriers
Dr. Thalheimer is in network with 22 carriers, including Aetna, United Healthcare and Cigna. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Cigna
- Elevance
- HCSC
- Alliant Health Plans
- Aspirus Health Plan
- Blue Cross Blue Shield of Massachusetts
- +14 more carriersWith a free account
Plan types Dr. Thalheimer accepts, by number of carriers
- PPO13
- HMO12
- Medicare8
- EPO4
- POS4
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Liza Opper Thalheimer'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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 and Drug (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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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 Dr. Liza Opper Thalheimer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Liza Opper Thalheimer's NPI number?
Dr. Liza Opper Thalheimer's NPI number is 1720249469. It was assigned on June 24, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Liza Opper Thalheimer?
Dr. Liza Opper Thalheimer is a surgical oncologist in Tampa, Florida. The primary specialty in the NPI Registry is Surgical Oncology Physician (taxonomy code 2086X0206X).
Where does Dr. Liza Opper Thalheimer practice?
Dr. Thalheimer practices at 3810 Northdale Blvd, Tampa, FL 33624. Dr. Thalheimer's primary practice is United Vein & Vascular Centers in Tampa, Florida. Dmand AI also links Dr. Thalheimer to 2 group practices and clinics and 1 medical group.
What is Dr. Liza Opper Thalheimer's office phone number?
The practice phone on file for Dr. Thalheimer is (800) 991-6117.
What is Dr. Liza Opper Thalheimer's medical license number?
Dr. Thalheimer holds Texas license R0334, one of the licenses on file in 5 states.
Which states has Dr. Liza Opper Thalheimer been licensed in?
Dmand AI has state licenses on file for Dr. Thalheimer in Texas (2016 to 2026), South Dakota (since 2025), Arizona (2024 to 2026), Oregon (2022 to 2025) and Pennsylvania (2015 to 2016).
What medical group is Dr. Liza Opper Thalheimer part of?
Dr. Thalheimer is linked to Texas Vein and Wellness Institute. Dmand AI links Dr. Thalheimer to 1 more medical group.
Does Dr. Liza Opper Thalheimer accept Medicare?
Yes. CMS data shows Dr. Thalheimer billed Medicare for 14 services in 2024, and Dr. Thalheimer accepts Medicare assignment.
How many Medicare patients does Dr. Liza Opper Thalheimer see?
CMS counts 21 Medicare patients who saw Dr. Thalheimer in 2024, with an average age of 74.
Is Dr. Liza Opper Thalheimer board certified?
Yes. Dr. Thalheimer is board certified in surgery by the American Board of Surgery.
Show 8 more questionsShow fewer questions
What services does Dr. Liza Opper Thalheimer bill to Medicare?
In 2024, Dr. Thalheimer's most billed Medicare services were blood vessel study (93970).
Where did Dr. Liza Opper Thalheimer go to medical school?
Dr. Thalheimer graduated from West Virginia University School Of Medicine in 2008.
What drugs does Dr. Liza Opper Thalheimer prescribe most?
In 2020 Medicare Part D data, Dr. Thalheimer's most prescribed drugs by claims were Tramadol HCl and Lorazepam.
Has Dr. Liza Opper Thalheimer received payments from drug or device companies?
CMS Open Payments shows $2,188 in general payments to Dr. Thalheimer from 34 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has Dr. Liza Opper Thalheimer been practicing?
Dr. Thalheimer graduated from medical school in 2008, 18 years ago.
Does Dr. Liza Opper Thalheimer do research?
Dmand AI links 2 publications to Dr. Thalheimer. Dr. Thalheimer has worked on 1 clinical trial.
Who does Dr. Liza Opper Thalheimer publish with?
Dr. Thalheimer's most frequent co-authors are Bryan K. Richmond, MD (1 shared paper).
What insurance does Dr. Liza Opper Thalheimer accept?
Dr. Thalheimer is in network with 22 carriers, including Aetna, United Healthcare and Cigna. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.
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