James Gruber, MD
NPI 1407821028 · Emergency Medicine Physician · Littleton, CO
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Gruber, MD is a Emergency Medicine Physician provider in Littleton, CO (NPI 1407821028).
Provider details
- NPI number
- 1407821028
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 25636 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-17
- Last updated
- 2009-04-22
Frequently asked questions
- What is James Gruber's NPI number?
- James Gruber's National Provider Identifier (NPI) is 1407821028, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Gruber's specialty?
- James Gruber is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Gruber located?
- James Gruber's practice location on file with NPPES is 7700 S Broadway, Littleton, CO 80122-2602.
- What is James Gruber's phone number?
- The practice phone number listed in the NPPES registry for James Gruber is (303) 730-5800.
- Does James Gruber accept Medicare?
- James Gruber is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Gruber's NPI active?
- Yes — James Gruber's NPI (1407821028) is active in the NPPES registry as of the last update on 2009-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.