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Dr. Thomas A. Holly, MD
NPI1497784813
- Medicare services, 2023
- 1,041
- Part D claims, 2024
- 150
- Publications
- 44
- Industry payments
- $78
- Affiliated sites
- 1
- Practice address
- 4860 Y St 1e, Sacramento, CA 95817-2307
- Practice phone
- Call (916) 734-6602
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Regents Of The University Of Ca
Multi-specialty group site · Sacramento, California
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Dr. Thomas A. Holly is a cardiologist in Sacramento, California
Dr. Holly practices at Regents Of The University Of Ca in Sacramento, California.
Dr. Holly's NPI, 1497784813, was assigned on June 30, 2006. Dr. Holly graduated from SUNY Upstate Medical University in 1989. Dr. Holly holds California license G170567.
NPI and contact details
- NPI
- 1497784813NPI Registry (opens in a new tab)
- NPI enumeration date
- June 30, 2006
- NPI status
- Active
- Practice phone
- (916) 734-6602
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas A. Holly practices at 2 locations in Sacramento, California
Dr. Holly's primary practice is Regents of the University of Ca, at 4860 Y St 1e, Sacramento, CA 95817-2307. The practice phone is (916) 734-6602. The NPI Registry lists Dr. Holly's practice address as 2315 Stockton Blvd, Sacramento, CA 95817.
- Regents of the University of CaPrimary4860 Y St 1e, Sacramento, CA 95817-2307Phone(916) 734-6602
- NPI Registry address2315 Stockton Blvd, Sacramento, CA 95817 · Sacramento CountyPhone(916) 734-3761
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Thomas A. Holly is affiliated with 1 site of care and 1 medical group
Dr. Holly's primary practice is Regents Of The University Of Ca in Sacramento, California. The medical group on file is UC Davis Medical Group.
Regents Of The University Of CaPrimary
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Thomas A. Holly's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Holly practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Regents Of The University Of Ca | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas A. Holly is one of 2,375 cardiologists in California
Cardiovascular disease is Dr. Holly's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Holly is board certified in cardiovascular disease by the American Board of Internal Medicine. Dmand AI has Dr. Holly's licenses on file in 2 states: California and Illinois.
Specialties and state licenses
- Cardiovascular disease, CaliforniaPrimary
- Illinois license
Clinical focus
Dmand AI lists aneurysm, aortic atherosclerois, atrial fibrillation and flutter, cardiac catheterization, cardiomyopathy, cerebrovascular disease, chronic hypertension and coronary artery disease among the conditions Dr. Holly treats.
Cardiologists near Dr. Holly
Counts of cardiologists 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. Thomas A. Holly billed Medicare for 1,041 services in 2023
CMS data shows 1,041 Medicare services from Dr. Holly across 11 procedure codes in 2023. Medicare paid $85,180 for them.
Medicare services, 20231,041
Paid by Medicare$85,180
Procedure codes11
Dr. Holly's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 1,2612023: 59153%
- Tests and treatments
- 2022: 8282023: 45046%
- Other services
- 2022: 332023: 0100%
Where Dr. Holly's Medicare services took place, 2023
- In an office1,01698%
- In a facility252%
Dr. Holly compared with the California median for cardiologists, 2023
- Dr. Holly
- California median
- Medicare services
- 1,041vs 1,56033% below
- Part D claims
- 52vs 1,41096% below
Medians across 2,237 cardiologists in California with Dmand AI profiles that report each measure.
Dr. Holly's most billed Medicare procedure codes, 2023
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. Holly?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Holly and other cardiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas A. Holly's patients have a median age of 79
Across all payers, Dmand AI patient panel data puts Dr. Holly's median patient age at 79, with 43% women.
Dr. Holly's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 79
Patient panel by sex, all payers
- Women43%
- Men57%
Source: Dmand AI Patient Panel Data
Dr. Thomas A. Holly wrote 150 Medicare Part D claims in 2024
In 2024, Dr. Holly wrote 150 Medicare Part D claims for 106 patients. 91% of them were for generic drugs. CMS names the drug for 52 of them, across 4 drugs with 11 or more claims each, at $593 in total drug cost. In 2023, CMS named 2,440 claims across 34 drugs.
Part D claims, 2024150
Drugs named by CMS4
Total drug cost$593
Part D patients106
Dr. Holly's Part D claims by kind of drug, 2024
- Generic136 claims91%
- Brand-name14 claims9%
Dr. Holly's most prescribed drugs by claims, 2024
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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,4402024: 5298%
Drugs named by CMS: 4 in 2024, 34 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Thomas A. Holly has 44 publications on record
Dmand AI links 44 papers to Dr. Holly, published from 2004 to 2021. 2014 was the busiest year, with 4. The most frequent topics are Tomography, Emission-Computed, Single-Photon, Electrocardiography and Myocardial Ischemia. Dr. Holly has published most often in J Nucl Cardiol. Dr. Holly's most frequent co-authors are Robert O. Bonow, MD, Patricia A. Pellikka, MD and Daniel S. Berman, MD.
Papers44
Years published2004 to 2021
Dr. Holly's papers by year, 2010 to 2021
Topics Dr. Holly writes about most
- Tomography, Emission-Computed, Single-Photon
- Electrocardiography
- Myocardial Ischemia
- Ventricular Dysfunction, Left
- Coronary Artery Disease
- Exercise Test
- Magnetic Resonance Imaging
- Myocardial Infarction
Dr. Holly's most frequent co-authors
- Robert O. Bonow, MD16 shared papers
- Patricia A. Pellikka, MD4 shared papers
- Daniel S. Berman, MD3 shared papers
Recent publications by Dr. Holly
Cardiac-Gated Single-Photon Emission Computer-Assisted TomographyCardiac Imaging TechniquesCoronary Artery Disease
CardiologyMyocardial Perfusion ImagingNatural Language Processing
Am J Cardiol
Aortic Valve StenosisFrail ElderlyHospital Mortality
See who Dr. Holly researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Holly works with, so you can find a warm path to the right cardiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Thomas A. Holly received $78 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Holly from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $78.
Companies that paid Dr. Holly the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Thomas A. Holly has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Holly, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Holly
- 2011
- CMS Stage 1 2012
- Undated
- ACC Fellow
Source: Dmand AI Professional Profile Data
Dr. Thomas A. Holly graduated from SUNY Upstate Medical University
Dr. Holly graduated from SUNY Upstate Medical University in 1989. Dr. Holly is a member of ACC, AHA and ASNC.
- Medical school
- Board certified in cardiovascular disease
Source: Dmand AI Professional Profile Data
Dr. Thomas A. Holly accepts plans from 6 insurance carriers
Dr. Holly is in network with 6 carriers, including Aetna, HCSC and United Healthcare. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Aetna
- HCSC
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Blue Cross and Blue Shield of Kansas City
Plan types Dr. Holly accepts, by number of carriers
- Medicare5
- PPO5
- HMO3
- EPO2
- POS2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Thomas A. Holly'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (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 |
| 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. Thomas A. Holly
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. Thomas A. Holly's NPI number?
Dr. Thomas A. Holly's NPI number is 1497784813. It was assigned on June 30, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas A. Holly?
Dr. Thomas A. Holly is a cardiologist in Sacramento, California. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Thomas A. Holly practice?
Dr. Holly practices at 4860 Y St 1e, Sacramento, CA 95817-2307. Dr. Holly also practices at 2315 Stockton Blvd, Sacramento, CA 95817. Dr. Holly's primary practice is Regents Of The University Of Ca in Sacramento, California.
What is Dr. Thomas A. Holly's office phone number?
The practice phone on file for Dr. Holly is (916) 734-6602.
What is Dr. Thomas A. Holly's medical license number?
Dr. Holly holds California license G170567, one of the licenses on file in 2 states.
Which states has Dr. Thomas A. Holly been licensed in?
Dmand AI has state licenses on file for Dr. Holly in California (2020 to 2026) and Illinois (1996 to 2026).
What medical group is Dr. Thomas A. Holly part of?
Dr. Holly is linked to UC Davis Medical Group.
Does Dr. Thomas A. Holly accept Medicare?
Yes. CMS data shows Dr. Holly billed Medicare for 1,041 services in 2023.
Is Dr. Thomas A. Holly board certified?
Yes. Dr. Holly is board certified in cardiovascular disease by the American Board of Internal Medicine.
What services does Dr. Thomas A. Holly bill to Medicare?
In 2023, Dr. Holly's most billed Medicare services were office visit, established patient (99214), heart test or procedure (93306) and heart test or procedure (93010).
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Where did Dr. Thomas A. Holly go to medical school?
Dr. Holly graduated from SUNY Upstate Medical University in 1989.
What drugs does Dr. Thomas A. Holly prescribe most?
In 2024 Medicare Part D data, Dr. Holly's most prescribed drugs by claims were Amlodipine Besylate, Atorvastatin Calcium and Carvedilol.
Has Dr. Thomas A. Holly received payments from drug or device companies?
CMS Open Payments shows $78 in general payments to Dr. Holly from 1 company from 2024 to 2024. The largest total came from Pfizer Inc.
How long has Dr. Thomas A. Holly been practicing?
Dr. Holly graduated from medical school in 1989, 37 years ago.
Does Dr. Thomas A. Holly do research?
Dmand AI links 44 publications to Dr. Holly, published from 2004 to 2021.
Who does Dr. Thomas A. Holly publish with?
Dr. Holly's most frequent co-authors are Robert O. Bonow, MD (16 shared papers), Patricia A. Pellikka, MD (4 shared papers) and Daniel S. Berman, MD (3 shared papers).
What insurance does Dr. Thomas A. Holly accept?
Dr. Holly is in network with 6 carriers, including Aetna, HCSC and United Healthcare. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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