DR. MONICA EL-MASRY M.D.
NPI 1578797171
Internal Medicine - Hematology & Oncology in Simi Valley, CA

Q: What is Monica El-masry's NPI number?

The NPI number for Monica El-masry is 1578797171. It was assigned to this individual provider in the NPPES registry on May 11, 2009.

Q: What is Monica El-masry's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Q: When was this NPI record last updated?

The NPPES record for Monica El-masry was last updated on October 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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 May 11, 2009PECOS EnrolledAccepts Medicare Assignment

1157 SWALLOW LN, SIMI VALLEY, CA 93065(805) 527-2770(805) 527-2870 Get Directions Write a Review

NPPES record last updated: October 30, 2025. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Feb 13, 2023, Aug 9, 2018, Dec 6, 2015 (3 updates tracked since 2015).

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About Dr. Monica El-masry M.d. NPPES

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

DR. MONICA EL-MASRY M.D. (NPI 1578797171) is an individual hematology & oncology provider in Simi Valley, California, licensed in California (A114528) and active in the NPI registry since May 2009. She is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (2009).

NPPES Registry Identity

NPI1578797171

Entity TypeIndividualFemale

Primary Taxonomy207RH0003X

Provider Legal NameDR. MONICA EL-MASRYCredential: M.D.

Location Address1157 SWALLOW LNSimi Valley, CA 93065-3155

Mailing AddressPo Box 512185Los Angeles, CA 90051-0185

Phone(805) 527-2770

Fax(805) 527-2870

Sole ProprietorYes

Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 2009

Enumeration DateMay 11, 2009

Last NPPES UpdateOctober 30, 20253 updates tracked since enumeration

NPPES CertifiedOctober 30, 2025

✔ NPI 1578797171 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in CA · A114528

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Also ListedInternal MedicineTaxonomy 207R00000X · License A114528 (CA)

1157 SWALLOW LN, Simi Valley, CA 93065

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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. Monica El-masry 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 ID7911160916

PECOS Enrollment IDI20120530000692

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 4

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

187 services45 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

51 services27 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.

32 services16 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

21 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93065 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

$185.36 typical visit price

range $62.32 – $185.36

Typical copayment $46.34 (range $15.58 – $46.34)

Most-billed visit code 99205

Established Patient

$108.74 typical visit price

range $20.68 – $151.85

Typical copayment $27.18 (range $5.17 – $37.96)

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 2

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

GORE BADIKYAN PHARMD

Pharmacist (Oncology)

1157 SWALLOW LN
SIMI VALLEY, CA 93065

Ventura County (805) 527-2770

SARAH MCINDOE NP

Nurse Practitioner (Family)

1157 SWALLOW LN
SIMI VALLEY, CA 93065

Ventura County (805) 527-2770

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 Monica El-masry's NPI number?

The NPI number for Monica El-masry is 1578797171. It was assigned to this individual provider in the NPPES registry on May 11, 2009.

Where is Monica El-masry located?

Monica El-masry practices at 1157 Swallow Ln, Simi Valley, CA 93065. The listed phone number is (805) 527-2770.

What is Monica El-masry's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Monica El-masry enrolled in Medicare?

Yes. Monica El-masry 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.

When was this NPI record last updated?

The NPPES record for Monica El-masry was last updated on October 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.