Kenneth S. Nitahara, MD
Urology Physician · San Diego, CA
Kenneth S. Nitahara, MD is a urology physician with a practice address in San Diego, California, and NPI 1861540742, issued on Jan 8, 2007. Check the license (California G81822, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kenneth S. Nitahara
- Credential
- MD
- Primary taxonomy
- Urology Physician 208800000X
- License number
- G81822 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4647 Zion Ave, San Diego, CA 92120
- Phone
- (619) 528-5000
- Enumerated
- Jan 8, 2007
- Record last updated
- Dec 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20081105000773); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest urology physician records → All 1,524 in California → Look up another NPI →
Also registered at 4647 Zion Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Samvel Abelyan, PHARMDPharmacist1306629928
- Ali Aboutaleb, MDFamily Medicine Physician1821261405
- Patricia Achilly, CNMAdvanced Practice Midwife1932257847
- Linda Adams, PAPhysician Assistant1427174689
- Mette-Margrethe Adkisson, M.D.Emergency Medicine Physician1528288081
Verify Kenneth S. Nitahara in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G81822Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average urology physician in 2024
2,751 Medicare Part D claims for 805 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. 92 claims were for opioids.
Most prescribed
- Tamsulosin Hcl922 claims
- Finasteride523 claims
- Terazosin Hcl292 claims
- Cephalexin200 claims
- Ciprofloxacin Hcl132 claims
- Myrbetriq100 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
- Southern California Permanente Medical GroupSan Marcos, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kenneth S. Nitahara among 1,524 urology physician records in California
Kenneth S. Nitahara, MD is one of 1,524 urology 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 49% of them.
- NPI issued2007 · 49% of these records are older, 40% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1992 · median 2003 among the 1,049 with a school on file
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in California
There are 1,524 urology physician records in California.
All 1,524 in California → Every provider in San Diego → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Habib Anwar Md, MDSan Diego, CA 921201063476646
- Martin Bastuba, M.D.San Diego, CA 921201790769016
- Vincent Flynn, MDSan Diego, CA 921201669520573
- Vincent Flynn, MDSan Diego, CA 921201164547675
- Jeffrey Gaines, MDSan Diego, CA 921201285701144
- Eric Gerber, MDSan Diego, CA 921201225178759
- Irwin Goldstein, MDSan Diego, CA 921201215058441
- Huathin Khaw, MDSan Diego, CA 921201902945603
Common questions
What is Kenneth S. Nitahara, MD's NPI number?
Kenneth S. Nitahara, MD's National Provider Identifier (NPI) is 1861540742, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Kenneth S. Nitahara, MD located?
The NPPES record lists a practice address at 4647 Zion Ave, San Diego, CA, 92120. Phone: (619) 528-5000. Providers update this record themselves, so call before visiting.
How can I verify Kenneth S. Nitahara, MD's license?
NPPES lists California license number G81822, 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 Kenneth S. Nitahara, MD prescribe under Medicare Part D?
In 2024, Kenneth S. Nitahara, MD had 2,751 Medicare Part D claims for 805 beneficiaries; the average among urology physician prescribers was 1,340. 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.