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DR. SERGEY LYASS MD
NPI 1316996911
Surgery in Encino, CA

Active since May 09, 2006PECOS EnrolledAccepts Medicare Assignment
4301 GRIMES PL, ENCINO, CA 91316(310) 623-1786(310) 693-5334 Get Directions Write a Review

NPPES record last updated: October 25, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Sergey Lyass Md NPPES

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

DR. SERGEY LYASS MD (NPI 1316996911) is an individual surgery provider in Encino, California, licensed in California (A80181) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1985).

NPPES Registry Identity

NPI1316996911
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. SERGEY LYASSCredential: MD
Location Address4301 GRIMES PLEncino, CA 91316-4361
Mailing Address4301 Grimes PlEncino, CA 91316-4361 · (818) 578-3388 · Fax (310) 693-2603
Phone(310) 623-1786
Fax(310) 693-5334
Sole ProprietorYes
Medical School CMSOtherGraduated 1985
Enumeration DateMay 9, 2006
Last NPPES UpdateOctober 25, 2024
NPPES CertifiedOctober 25, 2024
✔ NPI 1316996911 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in CA · A80181
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
4301 GRIMES PL, Encino, CA 91316
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Other Identifiers 1

Other11542441CA · Caqh Id#

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Sergey Lyass 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 ID6305888991
PECOS Enrollment IDI20050524000844
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.

Medicare Billing Reassignment

Medicare enrollment records show Sergey Lyass reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sergey Lyass MD A Professional Corporation
11 mi
Surgery
6404 WILSHIRE BLVD STE 701
Los Angeles, CA 90048
  • Reassigned Medicare billing, California enrollment
NPI 1780760231 (310) 623-1786

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

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.
56 services26 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
27 services27 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.
25 services25 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
21 services15 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
16 services16 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.
16 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91316 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sergey Lyass's NPI number?

The NPI number for Sergey Lyass is 1316996911. It was assigned to this individual provider in the NPPES registry on May 9, 2006.

Where is Sergey Lyass located?

Sergey Lyass practices at 4301 Grimes Pl, Encino, CA 91316. The listed phone number is (310) 623-1786.

What is Sergey Lyass's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Sergey Lyass enrolled in Medicare?

Yes. Sergey Lyass is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Sergey Lyass's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sergey Lyass reassigns Medicare benefits to Sergey Lyass MD A Professional Corporation (Los Angeles, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sergey Lyass's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Sergey Lyass was last updated on October 25, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.