GRETEL DAYNA D'SOUZA M.D.
NPI 1679138531
Internal Medicine - Rheumatology in Sylmar, CA

Q: What is Gretel D'souza's NPI number?

The NPI number for Gretel D'souza is 1679138531. It was assigned to this individual provider in the NPPES registry on May 7, 2019.

Q: What is Gretel D'souza's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Q: When was this NPI record last updated?

The NPPES record for Gretel D'souza was last updated on July 27, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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 07, 2019PECOS EnrolledAccepts Medicare Assignment

14445 OLIVE VIEW DR, SYLMAR, CA 91342(747) 210-3205(805) 569-8358 Get Directions Write a Review

NPPES record last updated: July 27, 2022. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 27, 2022, May 7, 2019 (2 updates tracked since 2019).

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About Gretel Dayna D'souza M.d. NPPES

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

GRETEL DAYNA D'SOUZA M.D. (NPI 1679138531) is an individual rheumatology provider in Sylmar, California, licensed in California (178675) and active in the NPI registry since May 2019. She is enrolled in Medicare PECOS, maintains a secondary practice location in Santa Barbara, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1679138531

Entity TypeIndividualFemale

Primary Taxonomy207RR0500X

Provider Legal NameGRETEL DAYNA D'SOUZACredential: M.D.

Location Address14445 OLIVE VIEW DRSylmar, CA 91342-1437

Mailing Address14445 Olive View DrSylmar, CA 91342-1437 · (747) 210-3205 · Fax (805) 569-8358

Phone(747) 210-3205

Fax(805) 569-8358

Sole ProprietorNo

Medical School CMSOtherGraduated 2018

Enumeration DateMay 7, 2019

Last NPPES UpdateJuly 27, 20222 updates tracked since enumeration

NPPES CertifiedJuly 27, 2022

✔ NPI 1679138531 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians

Taxonomy Code207RR0500X

License✔ Licensed in CA · 178675

Definition

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

14445 OLIVE VIEW DR, Sylmar, CA 91342

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Secondary Practice Location 1

Location 1SBCH, Medical Education, 400 W Pueblo StreetSanta Barbara, CA 93015 · Phone (805) 569-7315 · Fax (805) 569-8358

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

Gretel Dayna D'souza 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 ID8820537533

PECOS Enrollment IDI20240826004035

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91342 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.

COUNTY OF LOS ANGELES AUDITOR CONTROLLER

General Acute Care Hospital

14445 OLIVE VIEW DR
SYLMAR, CA 91342

Los Angeles County (818) 364-1555

DENNIS POON

Nurse Practitioner (Family)

14445 OLIVE VIEW DR
SYLMAR, CA 91342

Los Angeles County (747) 210-3000

SERENA KE MD

Student in an Organized Health Care Education/Training Program

14445 OLIVE VIEW DR
SYLMAR, CA 91342

Los Angeles County (747) 210-3205

DR. PAUL I LIU M.D.

Pathology (Anatomic Pathology & Clinical Pathology)

14445 OLIVE VIEW DR, ROOM 1A116
SYLMAR, CA 91342

Los Angeles County (818) 364-4033

DR. ARTHUR JENG M.D.

Internal Medicine (Infectious Disease)

14445 OLIVE VIEW DR, 2B182
SYLMAR, CA 91342

Los Angeles County (818) 364-3205

MRS. CECILIA CORONADO PTA

Physical Therapy Assistant

14445 OLIVE VIEW DR
SYLMAR, CA 91342

Los Angeles County (747) 210-4245

COUNTY OF LOS ANGELES AUDITOR CONTROLLER

General Acute Care Hospital

14445 OLIVE VIEW DR
SYLMAR, CA 91342

Los Angeles County (818) 364-1555

MR. ANDRIY A KUZNETSOV PT

Physical Therapist

14445 OLIVE VIEW DR
SYLMAR, CA 91342

Los Angeles County (818) 364-4245

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 Gretel D'souza's NPI number?

The NPI number for Gretel D'souza is 1679138531. It was assigned to this individual provider in the NPPES registry on May 7, 2019.

Where is Gretel D'souza located?

Gretel D'souza practices at 14445 Olive View Dr, Sylmar, CA 91342. The listed phone number is (747) 210-3205.

What is Gretel D'souza's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Gretel D'souza enrolled in Medicare?

Yes. Gretel D'souza 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 Gretel D'souza was last updated on July 27, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.