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MATTHEW S KEEFER MD
NPI 1972609352
Pediatrics in Los Angeles, CA

Active since September 15, 2006PECOS Enrolled
4650 W SUNSET BLVD, LOS ANGELES, CA 90027(323) 669-2534(323) 663-6707 Get Directions Write a Review

NPPES record last updated: October 4, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Oct 4, 2023, Jun 14, 2023, Mar 30, 2020 (3 updates tracked since 2020).

About Matthew S Keefer Md NPPES

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

MATTHEW S KEEFER MD (NPI 1972609352) is an individual pediatrics provider in Los Angeles, California, licensed in California (A74609) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1972609352
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameMATTHEW S KEEFERCredential: MD
Location Address4650 W SUNSET BLVDLos Angeles, CA 90027-6062
Mailing Address6430 W Sunset Blvd, Suite 600Los Angeles, CA 90028-7901 · (323) 669-2337 · Fax (323) 644-8488
Phone(323) 669-2534
Fax(323) 663-6707
Sole ProprietorNo
Enumeration DateSeptember 15, 2006
Last NPPES UpdateOctober 4, 20233 updates tracked since enumeration
NPPES CertifiedOctober 4, 2023
✔ NPI 1972609352 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · A74609
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
4650 W SUNSET BLVD, Los Angeles, CA 90027
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Other Identifiers 1

Medicaid00A746090CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Matthew S Keefer Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 90027 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
$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.

DR. MARK HENDRIK CORDEN M.D.
Pediatrics
4650 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (323) 361-8893
MS. ROBERTA MIYEKO KATO MD
Pediatrics (Pediatric Pulmonology)
4650 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (323) 361-2101
CHILDREN'S HOSPITAL LOS ANGELES
General Acute Care Hospital (Children)
4650 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (323) 361-3644
JESSICA ELIZABETH GREIM DPT, PT
Physical Therapist (Pediatrics)
4650 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (310) 361-2118
MOLLY CEVASCO PH.D., BCBA
Psychologist (Clinical Child & Adolescent)
4650 W SUNSET BLVD, MS #53
LOS ANGELES, CA 90027
Los Angeles County (323) 361-3849
GINNY KIM THAN NP
Nurse Practitioner (Pediatrics)
4650 W SUNSET BLVD, MS #81
LOS ANGELES, CA 90027
Los Angeles County (323) 361-3033
DOUGLAS SHAPIRO MD
Pediatrics (Pediatric Emergency Medicine)
4650 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (323) 660-2450
ALEXANDRA LYNN JOSTES MD
Student in an Organized Health Care Education/Training Program
4650 W SUNSET BLVD
LOS ANGELES, CA 90027
Los Angeles County (323) 361-2122

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 Matthew Keefer's NPI number?

The NPI number for Matthew Keefer is 1972609352. It was assigned to this individual provider in the NPPES registry on September 15, 2006.

Where is Matthew Keefer located?

Matthew Keefer practices at 4650 W Sunset Blvd, Los Angeles, CA 90027. The listed phone number is (323) 669-2534.

What is Matthew Keefer's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Matthew Keefer enrolled in Medicare?

Yes. Matthew Keefer is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Matthew Keefer was last updated on October 4, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.