DR. VIOLETA VALLEJO-SINAVSKY M.D.
NPI 1013042357
Internal Medicine in Lancaster, CA

Q: What is Violeta Vallejo-sinavsky's NPI number?

The NPI number for Violeta Vallejo-sinavsky is 1013042357. It was assigned to this individual provider in the NPPES registry on February 23, 2007.

Q: What is Violeta Vallejo-sinavsky's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since February 23, 2007PECOS EnrolledAccepts Medicare Assignment

44900 60TH ST W, LANCASTER, CA 93536(661) 948-8581(661) 945-8474 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr. Violeta Vallejo-sinavsky M.d. NPPES

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

DR. VIOLETA VALLEJO-SINAVSKY M.D. (NPI 1013042357) is an individual internal medicine provider in Lancaster, California, licensed in California (C42618) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS and is a graduate of Other (1969).

NPPES Registry Identity

NPI1013042357

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameDR. VIOLETA VALLEJO-SINAVSKYCredential: M.D.

Location Address44900 60TH ST WLancaster, CA 93536-7618

Mailing Address22381 Algunas RdWoodland Hills, CA 91364-5002 · (818) 593-2021

Phone(661) 948-8581

Fax(661) 945-8474

Sole ProprietorNo

Medical School CMSOtherGraduated 1969

Enumeration DateFebruary 23, 2007

Last NPPES UpdateJuly 8, 2007

✔ NPI 1013042357 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · C42618

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

44900 60TH ST W, Lancaster, CA 93536

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Other Identifiers 2

Medicare UPIND09732CA

Medicare ID-Type UnspecifiedWC42618FCA

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. Violeta Vallejo-sinavsky M.d. 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 ID5698828424

PECOS Enrollment IDI20090727000726

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 Violeta Vallejo-sinavsky reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

County Of Los Angeles Auditor Controller

6.2 mi

Clinic/Center

335 E AVENUE I
Lancaster, CA 93535

Reassigned Medicare billing, California enrollment
Medicare enrollment name: County Of Los Angeles
1,939 clinicians in this Medicare group

NPI 1366453045 (661) 948-8581

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 3

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.

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

17 services16 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.

17 services15 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93536 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

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

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

CAROL F STOWE R.N., C.R.N.A.

Nurse Anesthetist, Certified Registered