MR. HOWARD MARX (MD) – Diagnostic Radiology Physician, NPI 1356307136

MR. HOWARD MARX (MD) is a healthcare provider. based in Pasadena, California. specializing in Diagnostic Radiology Physician. They hold the professional credentials MD. They hold a License No. G48962 (CA). The NPI Number for MR. HOWARD MARX (MD) is 1356307136

Main info

Male
Name
MR. HOWARD MARX (MD)
NPI
1356307136
Phone
Not provided
Address
2090 WOODLYN AVE.
Enumeration Date
21 April 2006
Last Update Date
23 July 2018
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience59
Completeness75
Years active:20State licenses:1Digital endpointsOther names

Provider Addresses for MR. HOWARD MARX (MD)

  • 2090 WOODLYN AVE.

    PASADENA, CA 91104

    Phone:

    Type: Mailing

  • 1500 E Duarte Rd

    Duarte, CA 91010

    Phone: (626) 359-8111

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

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Medicare Enrollment & Revalidation

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No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 91104)

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Reviews

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Frequently asked questions

What is the 10-digit NPI for MR. HOWARD MARX (MD)?
MR. HOWARD MARX (MD) — NPI 1356307136 — is the standard way to identify this listing.
Can I rely on MR. HOWARD MARX (MD) being an active provider?
As of the registry snapshot, MR. HOWARD MARX (MD) is marked active.
What is MR. HOWARD MARX (MD)'s primary classification?
Diagnostic Radiology Physician is the headline specialty for MR. HOWARD MARX (MD) here. Clinical services aligned with this taxonomy classification.
Where should I expect MR. HOWARD MARX (MD) on a map?
Expect Pasadena, California as a primary anchor for MR. HOWARD MARX (MD) unless the record lists multiple sites.
Why does MR. HOWARD MARX (MD) have multiple addresses?
3 practice locations appear in the available data. Multiple addresses are common for hospital privileges, telehealth, or multi-site groups.

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