Junko Ohara, MD
Internal Medicine Physician · Irvine, CA
Junko Ohara, MD is an internal medicine physician with a practice address in Irvine, California, and NPI 1609434075, issued on May 31, 2019. Check the license (California A191056, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Junko Ohara
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A191056 CA
Self-reported in NPPES; status is on the state search - Practice location
- 22 Odyssey # 170-A, Irvine, CA 92618
- Phone
- (949) 654-8963
- Enumerated
- May 31, 2019
- Record last updated
- Oct 16, 2023
- Medicare enrollment
- Enrolled (PECOS I20231101001614); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Junko Ohara in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A191056Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
112 Medicare Part D claims for 24 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium18 claims
- Amlodipine Besylate12 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
- Ohara And Associates A Professional Medical CorporationIrvine, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Junko Ohara among 17,696 internal medicine physician records in California
Junko Ohara, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 86% of them.
- NPI issued2019 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2018 · median 2004 among the 11,065 with a school on file
- Record last updated2023 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
155 internal medicine physician records list a practice address in Irvine
They are 155 of the 7,778 NPPES records with a practice address in Irvine, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Irvine → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Savitha Bharadwaj, M.D.Irvine, CA 926181760470926
- Juan Cabrera, M.D.Irvine, CA 926181447254792
- William Chen, M.D.Irvine, CA 926181881659142
- Subrato Ghosh, MDIrvine, CA 926181083607055
- Kambiz Karimi, M.D.Irvine, CA 926181184688475
- Sara Kim, M.D.Irvine, CA 926181912944166
- Brian Lo, MDIrvine, CA 926181073501565
- Emad Mikhail, MDIrvine, CA 926181376582957
Common questions
What is Junko Ohara, MD's NPI number?
Junko Ohara, MD's National Provider Identifier (NPI) is 1609434075, issued on May 31, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Junko Ohara, MD located?
The NPPES record lists a practice address at 22 Odyssey # 170-A, Irvine, CA, 92618. Phone: (949) 654-8963. Providers update this record themselves, so call before visiting.
How can I verify Junko Ohara, MD's license?
NPPES lists California license number A191056, 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 Junko Ohara, MD prescribe under Medicare Part D?
In 2024, Junko Ohara, MD had 112 Medicare Part D claims for 24 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.