Jessica Faith Powers, M.D.
Medical Oncology Physician · Vacaville, CA
Jessica Faith Powers, M.D. is a medical oncology physician with a practice address in Vacaville, California, and NPI 1538361415, issued on Jun 4, 2007. Check the license (California A119859, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jessica Faith Powers
- Credential
- M.D.
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- A119859 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1020 Nut Tree RD, Vacaville, CA 95687
- Phone
- (707) 624-8000
- Enumerated
- Jun 4, 2007
- Record last updated
- Feb 10, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170330002741); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 447 in California → Look up another NPI →
Also registered at 1020 Nut Tree RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Deborah Murray, M.D.Endocrinology, Diabetes & Metabolism Physician1962476895
- Florian Ploch, MDTherapeutic Radiology Physician1356322705
- Susan Rosten, NPNurse Practitioner1659439602
- Karen Vikstrom, MS, CGCGenetic Counselor (M.S.)1306189782
Verify Jessica Faith Powers in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A119859Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% more Medicare Part D claims than the average medical oncology physician in 2024
1,069 Medicare Part D claims for 189 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. 122 claims were for opioids.
Most prescribed
- Anastrozole96 claims
- Hydrocodone-Acetaminophen66 claims
- Ondansetron Hcl38 claims
- Eliquis37 claims
- Oxycodone Hcl35 claims
- Dexamethasone34 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $729.53
32 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Northbay Health Medical FoundationVacaville, CA
- Northbay Physicians Surgery Center, LLCVacaville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jessica Faith Powers among 447 medical oncology physician records in California
Jessica Faith Powers, M.D. is one of 447 medical oncology physician records with a practice address in California. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 44% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2003 · median 2004 among the 312 with a school on file
- Record last updated2017 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in California
There are 447 medical oncology physician records in California.
All 447 in California → Every provider in Vacaville → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Mamatha Siricilla, M.B.B.SCameron Park, CA 956821487967576
- Cong Zhang, M.D., PH.D.Woodland, CA 956951356553317
- Antoine Sayegh, M.D.Roseville, CA 956611225063696
- Jonathan Schechter, MDEl Dorado Hills, CA 957621821367467
- Luko Laptalo, M.D.Carmichael, CA 956081114958501
- Haroon Rehman, MDCarmichael, CA 956081952784852
- John Fisher, M.D.Sacramento, CA 958161790704286
- Delphine Ong, M.D.Sacramento, CA 958161023034022
Common questions
What is Jessica Faith Powers, M.D.'s NPI number?
Jessica Faith Powers, M.D.'s National Provider Identifier (NPI) is 1538361415, issued on Jun 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jessica Faith Powers, M.D. located?
The NPPES record lists a practice address at 1020 Nut Tree RD, Vacaville, CA, 95687. Phone: (707) 624-8000. Providers update this record themselves, so call before visiting.
How can I verify Jessica Faith Powers, M.D.'s license?
NPPES lists California license number A119859, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jessica Faith Powers, M.D. prescribe under Medicare Part D?
In 2024, Jessica Faith Powers, M.D. had 1,069 Medicare Part D claims for 189 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.