Jonathan Marx, M.D.
NPI 1619991726 · Vascular & Interventional Radiology Physician · Fulton, MD
Enrolled with Medicare as Practitioner - Interventional Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Marx, M.D. is a Vascular & Interventional Radiology Physician provider in Fulton, MD (NPI 1619991726).
Provider details
- NPI number
- 1619991726
- Entity type
- Individual
- Primary specialty
- Vascular & Interventional Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D64735 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$136 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-26
- Last updated
- 2023-01-26
- Certified
- 2023-01-26
Frequently asked questions
- What is Jonathan Marx's NPI number?
- Jonathan Marx's National Provider Identifier (NPI) is 1619991726, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Marx's specialty?
- Jonathan Marx is listed in the NPPES registry with a primary specialty of Vascular & Interventional Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Marx located?
- Jonathan Marx's practice location on file with NPPES is 7788 Elmwood Rd, Fulton, MD 20759-2503.
- What is Jonathan Marx's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Marx is (973) 769-3444.
- Does Jonathan Marx accept Medicare?
- Jonathan Marx is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Marx's NPI active?
- Yes — Jonathan Marx's NPI (1619991726) is active in the NPPES registry as of the last update on 2023-01-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.