James Marx, M.D.
NPI 1922153907 · Pain Medicine (Anesthesiology) Physician · Las Vegas, NV
James Marx, M.D. is a Pain Medicine (Anesthesiology) Physician provider in Las Vegas, NV (NPI 1922153907).
Provider details
- NPI number
- 1922153907
- Entity type
- Individual
- Primary specialty
- Pain Medicine (Anesthesiology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 6619 (NV)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 231 | 20 |
| Fentanyl | 97 | — |
| Morphine Sulfatebrand: Morphine Sulfate Er | 97 | — |
| Alprazolam | 81 | — |
| Tizanidine Hcl | 72 | 14 |
| Montelukast Sodium | 49 | — |
| Methadone Hcl | 49 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$252 across 4 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
- 2007-01-23
- Last updated
- 2007-07-08
Frequently asked questions
- What is James Marx's NPI number?
- James Marx's National Provider Identifier (NPI) is 1922153907, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Marx's specialty?
- James Marx is listed in the NPPES registry with a primary specialty of Pain Medicine (Anesthesiology) Physician (Allopathic & Osteopathic Physicians).
- Where is James Marx located?
- James Marx's practice location on file with NPPES is 608 S Jones Blvd, Las Vegas, NV 89107-3613.
- What is James Marx's phone number?
- The practice phone number listed in the NPPES registry for James Marx is (702) 878-4568.
- Is James Marx's NPI active?
- Yes — James Marx's NPI (1922153907) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.