Robert Nathan, MD
NPI 1487648077 · Allergy & Immunology (Internal Medicine) Physician · Colorado Springs, CO
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Nathan, MD is a Allergy & Immunology (Internal Medicine) Physician provider in Colorado Springs, CO (NPI 1487648077).
Provider details
- NPI number
- 1487648077
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 21249 (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 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
- 2005-09-09
- Last updated
- 2023-03-07
Frequently asked questions
- What is Robert Nathan's NPI number?
- Robert Nathan's National Provider Identifier (NPI) is 1487648077, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Nathan's specialty?
- Robert Nathan is listed in the NPPES registry with a primary specialty of Allergy & Immunology (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Nathan located?
- Robert Nathan's practice location on file with NPPES is 2709 N Tejon St, Colorado Springs, CO 80907-6231.
- What is Robert Nathan's phone number?
- The practice phone number listed in the NPPES registry for Robert Nathan is (719) 473-0872.
- Does Robert Nathan accept Medicare?
- Robert Nathan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Nathan's NPI active?
- Yes — Robert Nathan's NPI (1487648077) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.