STEVEN A MILES M D A PROFESSIONAL CORPORATION
NPI 1548630643
Internal Medicine - Hematology & Oncology in Los Angeles, CA

Q: What is Steven A Miles M D A Professional Corporation's specialty?

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

Active since October 01, 2015

8631 WEST THIRD STREET, SUITE 1017E, LOS ANGELES, CA 90048(424) 363-9221(424) 208-0637 Get Directions Write a Review

NPPES record last updated: September 15, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 15, 2025, Mar 31, 2023, Nov 10, 2022 and 2 more (5 updates tracked since 2015).

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About Steven A Miles M D A Professional Corporation NPPES

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

STEVEN A MILES M D A PROFESSIONAL CORPORATION (NPI 1548630643), doing business as Big Thunder Loud River Medicine, Inc., is a healthcare organization registered as a hematology & oncology in Los Angeles, California and active in the NPI registry since October 2015. The organization lists Steven Aloysius Miles, Ceo, as its authorized official.

NPPES Registry Identity

NPI1548630643

Entity TypeOrganization

Primary Taxonomy207RH0003X

Legal Business NameSTEVEN A MILES M D A PROFESSIONAL CORPORATION

Location Address8631 WEST THIRD STREET, SUITE 1017ELos Angeles, CA 90048

Mailing Address8631 W 3rd St Ste 1017eLos Angeles, CA 90048-5901 · (424) 363-9221 · Fax (424) 208-0637

Phone(424) 363-9221

Fax(424) 208-0637

Organization SubpartNo

Authorized OfficialSteven Aloysius MilesCeo · (424) 363-9221

Enumeration DateOctober 1, 2015

Last NPPES UpdateSeptember 15, 20255 updates tracked since enumeration

NPPES CertifiedSeptember 15, 2025

✔ NPI 1548630643 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in CA · G48908

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.

8631 WEST THIRD STREET, Los Angeles, CA 90048

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Other Names 1

Doing Business AsBig Thunder Loud River Medicine, Inc.

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Steven A Miles M D A Professional Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Steven A Miles M D A Professional Corporation, which bills Medicare for the services this clinician delivers.

Clinician (1)

Steven Miles, M.D.

Medical Oncology

NPI 1932128741

8631 WEST THIRD STREET SUITE 1017E
Los Angeles, CA 90048

(424) 363-9221

✔ PECOS✔ Accepts MedicareSame address

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

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 Steven A Miles M D A Professional Corporation's NPI number?

The NPI number for Steven A Miles M D A Professional Corporation is 1548630643. It was assigned to this organization in the NPPES registry on October 1, 2015. The provider is doing business as Big Thunder Loud River Medicine, Inc..

Where is Steven A Miles M D A Professional Corporation located?

Steven A Miles M D A Professional Corporation is located at 8631 West Third Street Suite 1017E, Los Angeles, CA 90048. The listed phone number is (424) 363-9221.

What is Steven A Miles M D A Professional Corporation's specialty?

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

Is Steven A Miles M D A Professional Corporation enrolled in Medicare?

Yes. Steven A Miles M D A Professional Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Steven A Miles M D A Professional Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Medical Oncology) reassigns their Medicare billing to Steven A Miles M D A Professional Corporation. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Steven A Miles M D A Professional Corporation was last updated on September 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.