DR. LEONID IZEVICH GROYSMAN MD
NPI 1104076785
Psychiatry & Neurology - Neurocritical Care in Fountain Valley, CA

Q: What is Leonid Groysman's NPI number?

The NPI number for Leonid Groysman is 1104076785. It was assigned to this individual provider in the NPPES registry on September 19, 2008. The provider is also known as Leonid Groysman MD.

Q: What is Leonid Groysman's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurocritical Care, with taxonomy code 2084A2900X.

Q: When was this NPI record last updated?

The NPPES record for Leonid Groysman was last updated on February 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 19, 2008PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

17360 BROOKHURST ST., FOUNTAIN VALLEY, CA 92708(877) 844-0012(714) 665-4680 Get Directions Write a Review

NPPES record last updated: February 14, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Feb 14, 2025, Sep 23, 2024, Aug 15, 2024 and 3 more (6 updates tracked since 2021).

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About Dr. Leonid Izevich Groysman Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. LEONID IZEVICH GROYSMAN MD (NPI 1104076785) is an individual neurocritical care provider in Fountain Valley, California, licensed in California (A112765) and active in the NPI registry since September 2008. He is enrolled in Medicare PECOS and is a graduate of Other (1995).

NPPES Registry Identity

NPI1104076785

Entity TypeIndividualMale

Primary Taxonomy2084A2900X

Provider Legal NameDR. LEONID IZEVICH GROYSMANCredential: MD

Location Address17360 BROOKHURST ST.Fountain Valley, CA 92708-3720

Mailing Address17360 Brookhurst St.Fountain Valley, CA 92708-3720 · (877) 844-0012 · Fax (714) 665-4680

Phone(877) 844-0012

Fax(714) 665-4680

Sole ProprietorNo

Medical School CMSOtherGraduated 1995

Enumeration DateSeptember 19, 2008

Last NPPES UpdateFebruary 14, 20256 updates tracked since enumeration

NPPES CertifiedFebruary 14, 2025

✔ NPI 1104076785 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPsychiatry & Neurology · Neurocritical CareAllopathic & Osteopathic Physicians

Taxonomy Code2084A2900X

License✔ Licensed in CA · A112765

Definition

The medical subspecialty of Neurocritical Care is devoted to the comprehensive, multisystem care of the critically-ill neurological patient. Like other intensivists, the neurointensivist generally assumes the primary role for coordinating the care of his or her patients in the ICU, both the neurological and medical management of the patient. They may also provide consultative services for these patients as requested within the health system.

Also ListedPsychiatry & Neurology · NeurologyTaxonomy 2084N0400X · License A112765 (CA)

Also ListedPsychiatry & Neurology · PsychiatryTaxonomy 2084P0800X · License A112765 (CA)

17360 BROOKHURST ST., Fountain Valley, CA 92708

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Other Names 1

Former Name (1)Leonid Groysman Md

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Leonid Izevich Groysman Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1052443652

PECOS Enrollment IDI20100717000053

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

104 services63 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

95 services34 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

47 services46 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

31 services19 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

27 services27 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

24 services17 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

82.4

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

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