Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JOANNA MARIE DAVIES M.D.
NPI 1699746958
Internal Medicine - Rheumatology in Los Angeles, CA

Q: What is Joanna Davies's NPI number?

The NPI number for Joanna Davies is 1699746958. It was assigned to this individual provider in the NPPES registry on January 26, 2006.

Q: What is Joanna Davies'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 Joanna Davies was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days 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 January 26, 2006PECOS Enrolled

1136 W 6TH ST, #307, LOS ANGELES, CA 90017(213) 977-1144(213) 482-2182 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Dr. Joanna Marie Davies M.d. NPPES

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

DR. JOANNA MARIE DAVIES M.D. (NPI 1699746958) is an individual rheumatology provider in Los Angeles, California, licensed in California (G51148) and active in the NPI registry since January 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1699746958

Entity TypeIndividualFemale

Primary Taxonomy207RR0500X

Provider Legal NameDR. JOANNA MARIE DAVIESCredential: M.D.

Location Address1136 W 6TH ST, #307Los Angeles, CA 90017-1805

Mailing Address1136 W 6th St, #307Los Angeles, CA 90017-1805 · (213) 977-1144 · Fax (213) 482-2182

Phone(213) 977-1144

Fax(213) 482-2182

Sole ProprietorNo

Enumeration DateJanuary 26, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1699746958 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians

Taxonomy Code207RR0500X

License✔ Licensed in CA · G51148

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.

1136 W 6TH ST, Los Angeles, CA 90017

Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Joanna Marie Davies 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.

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.

Other Providers at the Same Location NPPES 3

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

DR. GLENN E HATFIELD M.D.

Internal Medicine

1136 W 6TH ST, SUITE 307
LOS ANGELES, CA 90017

Los Angeles County (213) 977-1138

DR. TERRY P JERGE M.D.

Internal Medicine

1136 W 6TH ST, SUITE 307
LOS ANGELES, CA 90017

Los Angeles County (213) 977-1138

DR. STUART L. WILLSON M.D.

Internal Medicine

1136 W 6TH ST, SUITE 307
LOS ANGELES, CA 90017

Los Angeles County (213) 977-1144

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 Joanna Davies's NPI number?

The NPI number for Joanna Davies is 1699746958. It was assigned to this individual provider in the NPPES registry on January 26, 2006.

Where is Joanna Davies located?

Joanna Davies practices at 1136 W 6th St #307, Los Angeles, CA 90017. The listed phone number is (213) 977-1144.

What is Joanna Davies's specialty?

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

Is Joanna Davies enrolled in Medicare?

Yes. Joanna Davies is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Joanna Davies was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days 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.