Naoko Ikeda, DO
Family Medicine Physician · Antioch, CA
Naoko Ikeda, DO is a family medicine physician with a practice address in Antioch, California, and NPI 1952403909, issued on Sep 1, 2006. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Naoko Ikeda
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 002697 NY
Self-reported in NPPES; status is on the state search - Practice location
- 3903 Lone Tree Way, Antioch, CA 94509
- Phone
- (925) 755-1255
- Enumerated
- Sep 1, 2006
- Record last updated
- Jun 11, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (925) 755-1259
- Medicare enrollment
- Enrolled (PECOS I20080108000566); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 3903 Lone Tree Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lauren Shirvanee, D.O.General Practice Physician1033447222
- Dennis Zai, MDGastroenterology Physician1740253350
Verify Naoko Ikeda in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% fewer Medicare Part D claims than the average family medicine physician in 2024
2,338 Medicare Part D claims for 472 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 251 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen115 claims
- Rosuvastatin Calcium103 claims
- Atorvastatin Calcium91 claims
- Levothyroxine Sodium67 claims
- Losartan Potassium60 claims
- Amlodipine Besylate58 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.
Bills Medicare through one group practice
- University Healthcare AlliancePinole, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Naoko Ikeda among 17,133 family medicine physician records in California
Naoko Ikeda, DO is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2003 · median 2005 among the 10,652 with a school on file
- Record last updated2010 · 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 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
30 family medicine physician records list a practice address in Antioch
They are 30 of the 2,184 NPPES records with a practice address in Antioch, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Antioch → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Seema Cameron, MDAntioch, CA 945091134369465
- Randolph Clarke, M.D.Antioch, CA 945091538187612
- John Copeland, MDAntioch, CA 945091649259961
- James Edwards, M.D.Antioch, CA 945091508885005
- Talia Firestein, MDAntioch, CA 945091184966707
- Douglas Folsom, MDAntioch, CA 945091831260470
- Hamidreza Khonsari, M.D.Antioch, CA 945091306874714
- James Kravetz, DOAntioch, CA 945091861478901
Common questions
What is Naoko Ikeda, DO's NPI number?
Naoko Ikeda, DO's National Provider Identifier (NPI) is 1952403909, issued on Sep 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Naoko Ikeda, DO located?
The NPPES record lists a practice address at 3903 Lone Tree Way, Antioch, CA, 94509. Phone: (925) 755-1255. Providers update this record themselves, so call before visiting.
How can I verify Naoko Ikeda, DO's license?
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 Naoko Ikeda, DO prescribe under Medicare Part D?
In 2024, Naoko Ikeda, DO had 2,338 Medicare Part D claims for 472 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.