Brian Vikstrom, M.D.
Hematology & Oncology Physician · Vacaville, CA
Brian Vikstrom, M.D. is a hematology & oncology physician with a practice address in Vacaville, California, and NPI 1285730820, issued on Sep 14, 2006. Check the license (California A69795, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Brian Vikstrom
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- A69795 CA
A 69795 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1020 Nut Tree RD Ste 390, Vacaville, CA 95687
- Phone
- (707) 624-8001
- Enumerated
- Sep 14, 2006
- Record last updated
- Jul 8, 2022
- Fax
- (707) 624-8001
- Medicare enrollment
- Enrolled (PECOS I20040826001339); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 1998
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 1020 Nut Tree RD Ste 390
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tyler Kang, M.D.Hematology & Oncology Physician1164691820
- James Long, M.D.Hematology & Oncology Physician1194821868
- Christopher Smith, PHARM. DOncology Pharmacist1770477440
Verify Brian Vikstrom in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A69795Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,230 Medicare Part D claims for 150 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 190 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen69 claims
- Letrozole48 claims
- Dexamethasone45 claims
- Xarelto43 claims
- Olanzapine39 claims
- Hydromorphone Hcl36 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: $891.32
37 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 8,560 providers of this specialty with any payment received $7,481.41 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, LLCFairfield, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian Vikstrom among 1,583 hematology & oncology physician records in California
Brian Vikstrom, M.D. is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 54% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1998 · median 2003 among the 1,124 with a school on file
- Record last updated2022 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Vacaville → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Tyler Kang, M.D.Vacaville, CA 956871164691820
- James Long, M.D.Vacaville, CA 956871194821868
- Chimezie Ubbaonu, MDVacaville, CA 956881790004943
- Ernest Lo, MDCameron Park, CA 956821538482328
- Rashmi Ramasubbaiah, MDCameron Park, CA 956821326202540
- Tsuong Tsai, MDCameron Park, CA 956821851462055
- Alborz Alali, M.D.Woodland, CA 956951265458640
- Sanaz Ghafouri, M.D.Woodland, CA 956951730543539
Common questions
What is Brian Vikstrom, M.D.'s NPI number?
Brian Vikstrom, M.D.'s National Provider Identifier (NPI) is 1285730820, issued on Sep 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Brian Vikstrom, M.D. located?
The NPPES record lists a practice address at 1020 Nut Tree RD Ste 390, Vacaville, CA, 95687. Phone: (707) 624-8001. Providers update this record themselves, so call before visiting.
How can I verify Brian Vikstrom, M.D.'s license?
NPPES lists California license number A69795, 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 Brian Vikstrom, M.D. prescribe under Medicare Part D?
In 2024, Brian Vikstrom, M.D. had 1,230 Medicare Part D claims for 150 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.