James Mattson, MD
NPI 1659908234 · Student in an Organized Health Care Education/Training Program · New York, NY
James Mattson, MD is a Student in an Organized Health Care Education/Training Program provider in New York, NY (NPI 1659908234).
Provider details
- NPI number
- 1659908234
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 322654-01 (NY)
Specialties & taxonomies
- Student in an Organized Health Care Education/Training ProgramPrimary390200000XLicense 322654-01 (NY)
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
34 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 | 20 | $93 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 14 | $145 |
Typical Medicare-allowed amounts for these services range $93–$145 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-03-24
- Last updated
- 2024-06-25
- Certified
- 2024-06-24
Frequently asked questions
- What is James Mattson's NPI number?
- James Mattson's National Provider Identifier (NPI) is 1659908234, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Mattson's specialty?
- James Mattson is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is James Mattson located?
- James Mattson's practice location on file with NPPES is 550 1st Ave, New York, NY 10016-6402.
- What is James Mattson's phone number?
- The practice phone number listed in the NPPES registry for James Mattson is (550) 263-5506.
- Is James Mattson's NPI active?
- Yes — James Mattson's NPI (1659908234) is active in the NPPES registry as of the last update on 2024-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.