Kenneth R.k. Nielsen, MD
Nuclear Medicine Physician · Santa Clara, CA
Kenneth R.k. Nielsen, MD is a nuclear medicine physician with a practice address in Santa Clara, California, and NPI 1780761643, issued on Oct 31, 2006. Check the license (California G64131, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kenneth R.k. Nielsen
- Credential
- MD
- Primary taxonomy
- Nuclear Medicine Physician 207U00000X
- License number
- G64131 CA
Self-reported in NPPES; status is on the state search - Practice location
- 900 Kiely Blvd, Santa Clara, CA 95051
- Phone
- (408) 236-6400
- Enumerated
- Oct 31, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 00G641310 CA
- Entity
- Type 1 · individual
8 nearest nuclear medicine physician records → All 150 in California → Look up another NPI →
Also registered at 900 Kiely Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- James Baxter, MDHospitalist Physician1679659502
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Verify Kenneth R.k. Nielsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G64131Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $77.82
4 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 172 providers of this specialty with any payment received $4,384.46 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.
Kenneth R.k. Nielsen among 150 nuclear medicine physician records in California
Kenneth R.k. Nielsen, MD is one of 150 nuclear medicine physician records with a practice address in California. 59% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 42% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileNo · 48% of these records are
- Record last updated2007 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207U00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nuclear Medicine Physician providers in California
There are 150 nuclear medicine physician records in California.
All 150 in California → Every provider in Santa Clara → Nuclear Medicine Physician nationwide →
The 8 nuclear medicine physician records with the nearest ZIP codes
- Edison Chiu, MDSanta Clara, CA 950511184702763
- Christine Keeling, MDSanta Clara, CA 950511083786818
- Margaret Maclean, MDSanta Clara, CA 950511841364445
- Ryan Niederkohr, M.D.Santa Clara, CA 950511679795272
- Erlinda Dizon, MDSan Jose, CA 951191659414407
- Powen Tu, MD PHDSan Jose, CA 951191891131421
- Robert Cohen, MDGreenbrae, CA 949041558479105
- Surendra Sood, M.D.Modesto, CA 953551336197300
Common questions
What is Kenneth R.k. Nielsen, MD's NPI number?
Kenneth R.k. Nielsen, MD's National Provider Identifier (NPI) is 1780761643, issued on Oct 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kenneth R.k. Nielsen, MD located?
The NPPES record lists a practice address at 900 Kiely Blvd, Santa Clara, CA, 95051. Phone: (408) 236-6400. Providers update this record themselves, so call before visiting.
How can I verify Kenneth R.k. Nielsen, MD's license?
NPPES lists California license number G64131, 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.
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.