Leonid Izevich Groysman, MD
Neurocritical Care Physician · Fountain Valley, CA
Leonid Izevich Groysman, MD is a neurocritical care physician with a practice address in Fountain Valley, California, and NPI 1104076785, issued on Sep 19, 2008. Check the license (California A112765, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Leonid Izevich Groysman
- Credential
- MD
- Primary taxonomy
- Neurocritical Care Physician 2084A2900X
- License number
- A112765 CA
Self-reported in NPPES; status is on the state search - Practice location
- 17360 Brookhurst St., Fountain Valley, CA 92708
- Phone
- (877) 844-0012
- Enumerated
- Sep 19, 2008
- Record last updated
- Feb 14, 2025
- Fax
- (714) 665-4680
- Medicare enrollment
- Enrolled (PECOS I20100717000053); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest neurocritical care physician records → All 74 in California → Look up another NPI →
Also registered at 17360 Brookhurst St.
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Leonid Izevich Groysman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A112765Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Memorialcare Medical FoundationCosta Mesa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leonid Izevich Groysman among 74 neurocritical care physician records in California
Leonid Izevich Groysman, MD is one of 74 neurocritical care physician records with a practice address in California. 97% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 9% of them.
- NPI issued2008 · 9% of these records are older, 74% newer
- In a Medicare fileYes · 97% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated1995 · median 2011 among the 64 with a school on file
- Record last updated2025 · 28% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084A2900X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurocritical Care Physician providers in California
There are 74 neurocritical care physician records in California.
All 74 in California → Every provider in Fountain Valley → Neurocritical Care Physician nationwide →
The 8 neurocritical care physician records with the nearest ZIP codes
- Patrick Chen, M.D.Irvine, CA 926971295198000
- Cyrus Dastur, M.D.Orange, CA 928681336325828
- Imad Khan, M.D.Orange, CA 928681801188669
- Angud MehdiOrange, CA 928681457885279
- Ahmad Riad Ramadan, M.D.Orange, CA 928681164738910
- Anirudha Rathnam, MDOrange, CA 928681700306537
- Wengui Yu, MDOrange, CA 928681225104193
- Conrad ManningRiverside, CA 925051891144853
Common questions
What is Leonid Izevich Groysman, MD's NPI number?
Leonid Izevich Groysman, MD's National Provider Identifier (NPI) is 1104076785, issued on Sep 19, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Leonid Izevich Groysman, MD located?
The NPPES record lists a practice address at 17360 Brookhurst St., Fountain Valley, CA, 92708. Phone: (877) 844-0012. Providers update this record themselves, so call before visiting.
How can I verify Leonid Izevich Groysman, MD's license?
NPPES lists California license number A112765, 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.
What is Leonid Izevich Groysman, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100. 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.