James Ransom Jespersen, D.D.S.
Endodontics · Santa Clara, CA
James Ransom Jespersen, D.D.S. is an endodontics with a practice address in Santa Clara, California, and NPI 1972706109, issued on Jun 6, 2007. Check the license (California 24807, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James Ransom Jespersen
- Credential
- D.D.S.
- Primary taxonomy
- Endodontics 1223E0200X
- License number
- 24807 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1200 Scott Blvd, Santa Clara, CA 95050
- Phone
- (408) 296-1500
- Enumerated
- Jun 6, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (408) 296-8728
- Entity
- Type 1 · individual
8 nearest endodontics records → All 1,018 in California → Look up another NPI →
Also registered at 1200 Scott Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tae Kang, D.D.S.Dentist1700917473
- Anastasios Photopoulos, D.D.S.Endodontics1033385190
Verify James Ransom Jespersen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 24807Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average endodontics in 2024
15 Medicare Part D claims, against an average of 121 among the 4,119 providers of this specialty who prescribed in Part D.
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.
James Ransom Jespersen among 1,018 endodontics records in California
James Ransom Jespersen, D.D.S. is one of 1,018 endodontics records with a practice address in California. 68% 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 27% of them.
- NPI issued2007 · 27% of these records are older, 42% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 78% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223E0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endodontics providers in California
There are 1,018 endodontics records in California.
All 1,018 in California → Every provider in Santa Clara → Endodontics nationwide →
The 8 endodontics records with the nearest ZIP codes
- Anastasios Photopoulos, D.D.S.Santa Clara, CA 950501033385190
- Shivani Anand, DDSSanta Clara, CA 950511508132408
- Jason Kung, DDS, MSSanta Clara, CA 950511427353655
- Raymond Pandez, DDSSanta Clara, CA 950511588048821
- Robert Minor, DDSSanta Cruz, CA 950601649395310
- Niyati Patel, DDSSanta Cruz, CA 950601689685307
- Charles Arita, DDSMorgan Hill, CA 950371063522340
- Hayoung KimMorgan Hill, CA 950371598178790
Common questions
What is James Ransom Jespersen, D.D.S.'s NPI number?
James Ransom Jespersen, D.D.S.'s National Provider Identifier (NPI) is 1972706109, issued on Jun 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James Ransom Jespersen, D.D.S. located?
The NPPES record lists a practice address at 1200 Scott Blvd, Santa Clara, CA, 95050. Phone: (408) 296-1500. Providers update this record themselves, so call before visiting.
How can I verify James Ransom Jespersen, D.D.S.'s license?
NPPES lists California license number 24807, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does James Ransom Jespersen, D.D.S. prescribe under Medicare Part D?
In 2024, James Ransom Jespersen, D.D.S. had 15 Medicare Part D claims; the average among endodontics prescribers was 121. 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.