Breast NeoplasmsDelivery of Health Care, IntegratedMastectomy, Segmental
Dr. Eva S. Thomas, MD
NPI1205922077PAC ID0042306557
- Part D claims, 2024
- 1,186
- Publications
- 18
- Clinical trials
- 1
- Hospital affiliations
- 1
- Industry payments
- $50
- Practice address
- 901 Nevin Ave, Richmond, CA 94801
- Practice phone
- Call (510) 307-1555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Richmond Medical Center
Richmond, California
Find Dr. Thomas' 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.
Dr. Eva S. Thomas is an internist in Richmond, California
Dr. Thomas practices at Richmond Medical Center in Richmond, California.
Dr. Thomas' NPI, 1205922077, was assigned on October 5, 2006. Dr. Thomas graduated from Tufts University School Of Medicine in 1994. Dr. Thomas' California license number on file is A55089.
NPI and contact details
- NPI
- 1205922077NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0042306557
- NPI enumeration date
- October 5, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (510) 307-1555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Eva S. Thomas practices at Richmond Medical Center in Richmond, California
Dr. Thomas' primary practice is Richmond Medical Center, at 901 Nevin Ave, Richmond, CA 94801 in Contra Costa County. The practice phone is (510) 307-1555.
- Richmond Medical Center901 Nevin Ave, Richmond, CA 94801 · Contra Costa CountyPhone(510) 307-1555
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Eva S. Thomas is affiliated with 2 sites of care and 1 medical group
Dr. Thomas' primary practice is Richmond Medical Center in Richmond, California. Dr. Thomas is also affiliated with Oakland Medical Center. The medical group on file is The Permanente Medical Group, Inc.
Richmond Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Eva S. Thomas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thomas practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Richmond Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Eva S. Thomas is one of 16,751 internists in California
Internal medicine is Dr. Thomas' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Thomas is board certified in medical oncology by the American Board of Internal Medicine. Dmand AI has Dr. Thomas' licenses on file in 2 states: California and Texas.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Texas license
Internists near Dr. Thomas
Counts of internists 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. Eva S. Thomas' patients have a median age of 58
Across all payers, Dmand AI patient panel data puts Dr. Thomas' median patient age at 58, with 89% women.
Dr. Thomas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women89%
- Men10%
Source: Dmand AI Patient Panel Data
Dr. Eva S. Thomas wrote 1,186 Medicare Part D claims in 2024
In 2024, Dr. Thomas wrote 1,186 Medicare Part D claims for 292 patients. 83% of them were for generic drugs. CMS names the drug for 1,069 of them, across 18 drugs with 11 or more claims each, at $2,898,190 in total drug cost. In 2023, CMS named 1,099 claims across 18 drugs.
Part D claims, 20241,186
Drugs named by CMS18
Total drug cost$2.9M
Part D patients292
Dr. Thomas' Part D claims by kind of drug, 2024
- Generic983 claims83%
- Brand-name203 claims17%
Dr. Thomas' 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.
Drug classes CMS tracks in Dr. Thomas' Part D claims, 2024
- Opioids2%19 of 1,186 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,0992024: 1,0693%
Drugs named by CMS: 18 in 2024, 18 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
Dr. Eva S. Thomas offers telehealth to Medicare patients
Dr. Thomas accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Thomas as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Eva S. Thomas has 18 publications on record
Dmand AI links 18 papers to Dr. Thomas, published from 2006 to 2023. 2012 was the busiest year, with 3. The most frequent topics are Breast Neoplasms, Antineoplastic Combined Chemotherapy Protocols and Fluorouracil. Dr. Thomas has published most often in Clin Breast Cancer. Dr. Thomas' most frequent co-authors are Aman U. Buzdar, MD, Thomas A. Buchholz, MD and Craig Alan Bunnell, MD.
Papers18
Years published2006 to 2023
Dr. Thomas' papers by year, 2006 to 2023
Topics Dr. Thomas writes about most
- Breast Neoplasms
- Antineoplastic Combined Chemotherapy Protocols
- Fluorouracil
- Capecitabine
- Epothilones
- Deoxycytidine
- Drug Resistance, Neoplasm
- Taxoids
Dr. Thomas' most frequent co-authors
- Aman U. Buzdar, MD4 shared papers
- Thomas A. Buchholz, MD3 shared papers
- Craig Alan Bunnell, MD3 shared papers
Recent publications by Dr. Thomas
Breast NeoplasmsCOVID-19Pandemics
Breast Cancer Res Treat
Breast NeoplasmsCOVID-19Delivery of Health Care, Integrated
Antineoplastic Combined Chemotherapy ProtocolsCapecitabineDrug Resistance, Neoplasm
Antineoplastic Combined Chemotherapy ProtocolsBreast NeoplasmsCapecitabine
See who Dr. Thomas researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Thomas works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Eva S. Thomas has worked on 1 clinical trial
Dmand AI links Dr. Thomas to 1 clinical trial. Conditions studied include Respiratory Tract Infections and Infections.
Conditions in Dr. Thomas' trials
- Respiratory Tract Infections
- Infections
Recent clinical trials with Dr. Thomas
Unclogging the Pediatric Emergency Room: Impact of Rapid Viral Diagnostics (opens in a new tab)
Completed
Respiratory Tract InfectionsInfections
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Eva S. Thomas received $50 in industry payments from 2018 to 2019
CMS Open Payments shows 3 general payments to Dr. Thomas from 1 drug or device company from 2018 to 2019. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $50.
General payments to Dr. Thomas by program year, 2018 to 2019
Companies that paid Dr. Thomas the most, 2018 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Eva S. Thomas has 1 award and honors on record
Dmand AI lists 1 award for Dr. Thomas, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Thomas
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Eva S. Thomas graduated from Tufts University School Of Medicine
Dr. Thomas graduated from Tufts University School Of Medicine in 1994. Dr. Thomas is a member of ASCO.
- Medical school
- Board certified in medical oncology
Source: Dmand AI Professional Profile Data
Dr. Eva S. Thomas accepts plans from 2 insurance carriers
Dr. Thomas is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Thomas accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Eva S. Thomas'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 DataDmand AI Org Hierarchy Data |
| 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Eva S. Thomas
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. Eva S. Thomas' NPI number?
Dr. Eva S. Thomas' NPI number is 1205922077. It was assigned on October 5, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Eva S. Thomas?
Dr. Eva S. Thomas is an internist in Richmond, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Eva S. Thomas practice?
Dr. Thomas practices at 901 Nevin Ave, Richmond, CA 94801. Dr. Thomas' primary practice is Richmond Medical Center in Richmond, California.
What is Dr. Eva S. Thomas' office phone number?
The practice phone on file for Dr. Thomas is (510) 307-1555.
What is Dr. Eva S. Thomas' medical license number?
Dr. Thomas' California license number on file is A55089, one of the licenses on file in 2 states.
Which states has Dr. Eva S. Thomas been licensed in?
Dmand AI has state licenses on file for Dr. Thomas in California (1995 to 2025) and Texas (1999 to 2006).
Which hospitals is Dr. Eva S. Thomas affiliated with?
Dr. Thomas is affiliated with Oakland Medical Center.
What medical group is Dr. Eva S. Thomas part of?
Dr. Thomas is linked to The Permanente Medical Group, Inc.
Does Dr. Eva S. Thomas accept Medicare?
Yes. CMS lists Dr. Thomas as accepting Medicare assignment.
Does Dr. Eva S. Thomas offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Thomas as offering telehealth services.
Show 8 more questionsShow fewer questions
Is Dr. Eva S. Thomas board certified?
Yes. Dr. Thomas is board certified in medical oncology by the American Board of Internal Medicine.
Where did Dr. Eva S. Thomas go to medical school?
Dr. Thomas graduated from Tufts University School Of Medicine in 1994.
What drugs does Dr. Eva S. Thomas prescribe most?
In 2024 Medicare Part D data, Dr. Thomas' most prescribed drugs by claims were Anastrozole, Ibrance and Tamoxifen Citrate.
Has Dr. Eva S. Thomas received payments from drug or device companies?
CMS Open Payments shows $50 in general payments to Dr. Thomas from 1 company from 2018 to 2019. The largest total came from Gilead Sciences, Inc.
How long has Dr. Eva S. Thomas been practicing?
Dr. Thomas graduated from medical school in 1994, 32 years ago.
Does Dr. Eva S. Thomas do research?
Dmand AI links 18 publications to Dr. Thomas, published from 2006 to 2023. Dr. Thomas has worked on 1 clinical trial.
Who does Dr. Eva S. Thomas publish with?
Dr. Thomas' most frequent co-authors are Aman U. Buzdar, MD (4 shared papers), Thomas A. Buchholz, MD (3 shared papers) and Craig Alan Bunnell, MD (3 shared papers).
What insurance does Dr. Eva S. Thomas accept?
Dr. Thomas is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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