Chester Dreiman, MD
NPI 1013983196 · Internal Medicine Physician · Boulder, CO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chester Dreiman, MD is a Internal Medicine Physician provider in Boulder, CO (NPI 1013983196).
Provider details
- NPI number
- 1013983196
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 33041 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
2 documented practice locations
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
Additional practice locations (1)
- 1725 W Harrison St Ste 10Chicago, IL 60612-3849Phone: (312) 563-3700
Registry dates
- Enumerated
- 2006-02-27
- Last updated
- 2024-04-26
- Certified
- 2024-04-26
Frequently asked questions
- What is Chester Dreiman's NPI number?
- Chester Dreiman's National Provider Identifier (NPI) is 1013983196, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chester Dreiman's specialty?
- Chester Dreiman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Chester Dreiman located?
- Chester Dreiman's practice location on file with NPPES is 2562 Briarwood Dr, Boulder, CO 80305-6804.
- What is Chester Dreiman's phone number?
- The practice phone number listed in the NPPES registry for Chester Dreiman is (303) 501-2195.
- Does Chester Dreiman accept Medicare?
- Chester Dreiman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chester Dreiman's NPI active?
- Yes — Chester Dreiman's NPI (1013983196) is active in the NPPES registry as of the last update on 2024-04-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.