Yuichiro Hayashi, MD
Pain Medicine (Anesthesiology) Physician · Los Angeles, CA
Yuichiro Hayashi, MD is a pain medicine (anesthesiology) physician with a practice address in Los Angeles, California, and NPI 1225471048, issued on Apr 10, 2013. Check the license (California A134873, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Yuichiro Hayashi
- Credential
- MD
- Primary taxonomy
- Pain Medicine (Anesthesiology) Physician 207LP2900X
- License numbers
- A134873 CA
18013 NV
Self-reported in NPPES; status is on the state search - Practice location
- 757 Westwood Plz Ste 3325, Los Angeles, CA 90095
- Phone
- (310) 267-8628
- Enumerated
- Apr 10, 2013
- Record last updated
- Aug 8, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (310) 267-3899
- Medicare enrollment
- Enrolled (PECOS I20181009001767); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2013
- Entity
- Type 1 · individual
8 nearest pain medicine (anesthesiology) physician records → All 536 in California → Look up another NPI →
Also registered at 757 Westwood Plz Ste 3325
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ashley Adams, MDAnesthesiology Physician1568098580
- Meron Admassu, RNAnesthesiology Physician1962168435
- Christopher AlbaStudent in an Organized Health Care Education/Training Program1568301737
- Golnaz Alemzadeh, M.D.Anesthesiology Physician1659687713
- Brannon Altenhofen, MDAnesthesiology Physician1780180703
- Shelly Anderson, CRNACertified Registered Nurse Anesthetist1033397120
Verify Yuichiro Hayashi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A134873Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average pain medicine (anesthesiology) physician in 2024
534 Medicare Part D claims for 136 beneficiaries, against an average of 1,750 among the 2,982 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 212 claims were for opioids.
Most prescribed
- Gabapentin145 claims
- Hydrocodone-Acetaminophen106 claims
- Pregabalin47 claims
- Tramadol Hcl46 claims
- Oxycodone-Acetaminophen43 claims
- Tizanidine Hcl40 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 97.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $251.23
5 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 2,789 providers of this specialty with any payment received $3,225.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Desert Orthopaedic Center LtdLas Vegas, NV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Yuichiro Hayashi among 536 pain medicine (anesthesiology) physician records in California
Yuichiro Hayashi, MD is one of 536 pain medicine (anesthesiology) physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 78% of them.
- NPI issued2013 · 78% of these records are older, 17% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2013 · median 2004 among the 367 with a school on file
- Record last updated2019 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP2900X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pain Medicine (Anesthesiology) Physician providers in California
There are 536 pain medicine (anesthesiology) physician records in California.
All 536 in California → Every provider in Los Angeles → Pain Medicine (Anesthesiology) Physician nationwide →
The 8 pain medicine (anesthesiology) physician records with the nearest ZIP codes
- Lindsay Brown, M.D.Los Angeles, CA 900951619408960
- Benjamin ChuLos Angeles, CA 900951437541828
- Frederick Li, M.D.Los Angeles, CA 900951013362391
- Alireza Sadoughi, MDLos Angeles, CA 900951093757387
- Preet Patel, M.D.Los Angeles, CA 900691194177816
- Reza Ehsan, M.D.Los Angeles, CA 900661467537480
- Brian Lai, M.D.Los Angeles, CA 900641700176971
- Daniel Shin, MDLos Angeles, CA 900571801090188
Common questions
What is Yuichiro Hayashi, MD's NPI number?
Yuichiro Hayashi, MD's National Provider Identifier (NPI) is 1225471048, issued on Apr 10, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Yuichiro Hayashi, MD located?
The NPPES record lists a practice address at 757 Westwood Plz Ste 3325, Los Angeles, CA, 90095. Phone: (310) 267-8628. Providers update this record themselves, so call before visiting.
How can I verify Yuichiro Hayashi, MD's license?
NPPES lists California license number A134873, 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 Yuichiro Hayashi, MD prescribe under Medicare Part D?
In 2024, Yuichiro Hayashi, MD had 534 Medicare Part D claims for 136 beneficiaries; the average among pain medicine (anesthesiology) physician prescribers was 1,750. Part D covers Medicare prescriptions only.
What is Yuichiro Hayashi, MD's MIPS final score?
The 2023 MIPS final score is 97.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.