James Marion, MD
NPI 1306869474 · Gastroenterology Physician · New York, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Marion, MD is a Gastroenterology Physician provider in New York, NY (NPI 1306869474).
Provider details
- NPI number
- 1306869474
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 183069 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
524 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 194 | $106 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 112 | $86 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 72 | $190 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 53 | $103 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 35 | $150 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ustekinumabbrand: Stelara | 128 | 26 |
| Mesalamine | 93 | 22 |
| Famotidine | 78 | 20 |
| Adalimumabbrand: Humira(cf) Pen | 60 | — |
| Diphenoxylate Hcl/Atropinebrand: Diphenoxylate-Atropine | 58 | 18 |
| Pantoprazole Sodium | 56 | 18 |
| Omeprazole | 48 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$16,272 across 20 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
- 2013-10-11
Frequently asked questions
- What is James Marion's NPI number?
- James Marion's National Provider Identifier (NPI) is 1306869474, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Marion's specialty?
- James Marion is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is James Marion located?
- James Marion's practice location on file with NPPES is 1 Gustave L Levy Pl, New York, NY 10029-6504.
- What is James Marion's phone number?
- The practice phone number listed in the NPPES registry for James Marion is (212) 987-3100.
- Does James Marion accept Medicare?
- James Marion is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Marion's NPI active?
- Yes — James Marion's NPI (1306869474) is active in the NPPES registry as of the last update on 2013-10-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.