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DR. FREDERICK BUTLER II M.D.
NPI 1427088830
Internal Medicine - Critical Care Medicine in Los Angeles, CA

Active since July 03, 2006PECOS Enrolled
616 WITMER STREET, LOS ANGELES, CA 90017(213) 977-2423(213) 202-7028 Get Directions Write a Review

NPPES record last updated: July 9, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Frederick Butler Ii M.d. NPPES

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

DR. FREDERICK BUTLER II M.D. (NPI 1427088830) is an individual critical care medicine provider in Los Angeles, California, licensed in California (A73853) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1427088830
Entity TypeIndividualMale
Primary Taxonomy207RC0200X
Provider Legal NameDR. FREDERICK BUTLER IICredential: M.D.
Location Address616 WITMER STREETLos Angeles, CA 90017-2395
Mailing Address2550 North Hollywood Way, Suite 209Burbank, CA 91505-5019 · (818) 557-0135 · Fax (818) 557-1394
Phone(213) 977-2423
Fax(213) 202-7028
Sole ProprietorNo
Enumeration DateJuly 3, 2006
Last NPPES UpdateJuly 9, 2007
✔ NPI 1427088830 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
License✔ Licensed in CA · A73853
Definition
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
616 WITMER STREET, Los Angeles, CA 90017
Open in Google Maps ↗

Other Identifiers 4

Medicare UPINI51640CA
Medicaid00A738530CA
Other00A738530CA · Blue Shield
Medicare OSCAR/certificationWA73853ACA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Frederick Butler Ii M.d. 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.

Medicare Billing Reassignment

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

American Current Care Of California, A Medical Corporation
10 mi
Clinic/Center
6033 WEST CENTURY BLVD, SUITE 200
Los Angeles, CA 90045
  • Reassigned Medicare billing, California enrollment
  • 304 clinicians in this Medicare group
NPI 1750573622 (310) 258-0684

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90017 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.

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 Frederick Butler's NPI number?

The NPI number for Frederick Butler is 1427088830. It was assigned to this individual provider in the NPPES registry on July 3, 2006.

Where is Frederick Butler located?

Frederick Butler practices at 616 Witmer Street, Los Angeles, CA 90017. The listed phone number is (213) 977-2423.

What is Frederick Butler's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Frederick Butler enrolled in Medicare?

Yes. Frederick Butler is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Frederick Butler's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Frederick Butler reassigns Medicare benefits to American Current Care Of California, A Medical 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 Frederick Butler'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 Frederick Butler was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.