Seth Mathern, M.D.
NPI 1972998110 · Hospitalist Physician · Denver, CO
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Seth Mathern, M.D. is a Hospitalist Physician provider in Denver, CO (NPI 1972998110).
Provider details
- NPI number
- 1972998110
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- DR.0060603 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
216 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 Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 134 | $170 |
| Critical Care, First 30-74 Minutes99291 | 82 | $208 |
Typical Medicare-allowed amounts for these services range $170–$208 (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
Additional practice locations (2)
- 13001 E 17th PlAurora, CO 80045-2570Phone: (720) 848-9096
- 14300 Orchard PkwyWestminster, CO 80023-9206Phone: (720) 627-3761Fax: (720) 627-3758
Registry dates
- Enumerated
- 2015-04-04
- Last updated
- 2025-09-04
- Certified
- 2025-09-04
Frequently asked questions
- What is Seth Mathern's NPI number?
- Seth Mathern's National Provider Identifier (NPI) is 1972998110, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Seth Mathern's specialty?
- Seth Mathern is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Seth Mathern located?
- Seth Mathern's practice location on file with NPPES is 2525 S Downing St, Denver, CO 80210-5817.
- What is Seth Mathern's phone number?
- The practice phone number listed in the NPPES registry for Seth Mathern is (303) 673-7151.
- Does Seth Mathern accept Medicare?
- Seth Mathern is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Seth Mathern's NPI active?
- Yes — Seth Mathern's NPI (1972998110) is active in the NPPES registry as of the last update on 2025-09-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.