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Dr. Howard Marx, MD
NPI1356307136
- Medicare services, 2018
- 511
- Publications
- 2
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 2090 Woodlyn Ave., Pasadena, CA 91104
- Practice phone
- Call (626) 398-7642
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Marx's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Howard Marx is a diagnostic radiologist in Pasadena, California
Dr. Marx practices in Pasadena, California.
Dr. Marx's NPI, 1356307136, was assigned on April 21, 2006. Dr. Marx holds California license G48962.
NPI and contact details
- NPI
- 1356307136NPI Registry (opens in a new tab)
- NPI enumeration date
- April 21, 2006
- NPI status
- Active
- Practice phone
- (626) 398-7642
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Howard Marx's practice address is in Pasadena, California
Dr. Marx's practice address in the NPI Registry is 2090 Woodlyn Ave., Pasadena, CA 91104. The practice phone is (626) 398-7642.
- NPI Registry address2090 Woodlyn Ave., Pasadena, CA 91104Phone(626) 398-7642
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Howard Marx's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marx practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Marx's practice | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Howard Marx is one of 4,096 diagnostic radiologists in California
Diagnostic radiology is Dr. Marx's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Marx is licensed in California.
Specialties and state licenses
- Diagnostic radiology, CaliforniaPrimary
Diagnostic radiologists near Dr. Marx
Counts of diagnostic radiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Howard Marx billed Medicare for 511 services in 2018
CMS data shows 511 Medicare services from Dr. Marx across 8 procedure codes in 2018. Medicare paid $6,404 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2018511
Paid by Medicare$6,404
Procedure codes8
Dr. Marx's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Imaging
- 2017: 9622018: 51147%
- Tests and treatments
- 2017: 222018: 0100%
Dr. Marx compared with the California median for diagnostic radiologists, 2018
- Dr. Marx
- California median
- Medicare services
- 511vs 2,28178% below
Medians across 3,734 diagnostic radiologists in California with Dmand AI profiles that report each measure.
Dr. Marx's most billed Medicare procedure codes, 2018
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Marx and other diagnostic radiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
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Dr. Howard Marx has 2 publications on record
Dmand AI links 2 papers to Dr. Marx. Dr. Marx's most frequent co-authors are Yi-Jen Chen, MD, Alicia Daigle Holt, MD and Lucille Leong, MD.
Papers2
Dr. Marx's most frequent co-authors
Recent publications by Dr. Marx
See who Dr. Marx researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Marx works with, so you can find a warm path to the right diagnostic radiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sources for Dr. Howard Marx's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Howard Marx
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Howard Marx's NPI number?
Dr. Howard Marx's NPI number is 1356307136. It was assigned on April 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Howard Marx?
Dr. Howard Marx is a diagnostic radiologist in Pasadena, California. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Howard Marx practice?
Dr. Marx practices at 2090 Woodlyn Ave., Pasadena, CA 91104.
What is Dr. Howard Marx's office phone number?
The practice phone on file for Dr. Marx is (626) 398-7642.
What is Dr. Howard Marx's medical license number?
Dr. Marx holds California license G48962.
Does Dr. Howard Marx accept Medicare?
Yes. CMS data shows Dr. Marx billed Medicare for 511 services in 2018.
What services does Dr. Howard Marx bill to Medicare?
In 2018, Dr. Marx's most billed Medicare services were diagnostic imaging (71046), diagnostic imaging (71045) and nuclear medicine (78306).
How long has Dr. Howard Marx been practicing?
Dr. Marx's NPI was assigned in 2006.
Does Dr. Howard Marx do research?
Dmand AI links 2 publications to Dr. Marx.
Who does Dr. Howard Marx publish with?
Dr. Marx's most frequent co-authors are Yi-Jen Chen, MD (1 shared paper), Alicia Daigle Holt, MD (1 shared paper) and Lucille Leong, MD (1 shared paper).
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