Krystal Lei Hirayama, MD
Hospitalist Physician · La Jolla, CA
Krystal Lei Hirayama, MD is a hospitalist physician with a practice address in La Jolla, California, and NPI 1568164812, issued on Mar 20, 2023. Check the license (California 200664, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Krystal Lei Hirayama
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 200664 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9850 Genesee Ave Ste 900, La Jolla, CA 92037
- Phone
- (858) 452-1279
- Enumerated
- Mar 20, 2023
- Record last updated
- Jul 14, 2026
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 9850 Genesee Ave Ste 900
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine Challender, MD, MPHInternal Medicine Physician1336567866
- Jason Douglas, MDHospitalist Physician1639152044
- Pamela Lam, D.O.Internal Medicine Physician1235540964
- Rami Michael, MDInternal Medicine Physician1467871673
- Christopher Rice, MDInternal Medicine Physician1154909687
- Nicholas Schmidt, MDInternal Medicine Physician1316527435
Verify Krystal Lei Hirayama in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 200664Check 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 hospitalist physician in 2024
62 Medicare Part D claims for 19 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of 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.
Krystal Lei Hirayama among 3,099 hospitalist physician records in California
Krystal Lei Hirayama, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 98% of them.
- NPI issued2023 · 98% of these records are older, under 1% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileNo · 81% of these records are
- Record last updated2026 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
66 hospitalist physician records list a practice address in La Jolla
They are 66 of the 3,648 NPPES records with a practice address in La Jolla, and 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in La Jolla → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Duc Do, M.D.La Jolla, CA 920371811006851
- Jason Douglas, MDLa Jolla, CA 920371639152044
- Dan Dworsky, M.D.La Jolla, CA 920371114993631
- Liesbet Joris-Quinton, M.D.La Jolla, CA 920371770542987
- Neil Kalra, M.D.La Jolla, CA 920371699925784
- Mark Kyle, M.D.La Jolla, CA 920371154301646
- Diane McNally, MDLa Jolla, CA 920371982861357
- Laura Nicholson, M.D.La Jolla, CA 920371023060845
Common questions
What is Krystal Lei Hirayama, MD's NPI number?
Krystal Lei Hirayama, MD's National Provider Identifier (NPI) is 1568164812, issued on Mar 20, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Krystal Lei Hirayama, MD located?
The NPPES record lists a practice address at 9850 Genesee Ave Ste 900, La Jolla, CA, 92037. Phone: (858) 452-1279. Providers update this record themselves, so call before visiting.
How can I verify Krystal Lei Hirayama, MD's license?
NPPES lists California license number 200664, 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 Krystal Lei Hirayama, MD prescribe under Medicare Part D?
In 2024, Krystal Lei Hirayama, MD had 62 Medicare Part D claims for 19 beneficiaries; the average among hospitalist physician prescribers was 521. 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.