Christopher Unrein DO PC
NPI 1821191628 · Geriatric Medicine (Internal Medicine) Physician · Castle Rock, CO
Christopher Unrein DO PC is a Geriatric Medicine (Internal Medicine) Physician organization in Castle Rock, CO (NPI 1821191628).
Provider details
- NPI number
- 1821191628
- Entity type
- Organization
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Christopher Unrein, President/Owner(720) 529-1919
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
19 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
- 2006-09-07
- Last updated
- 2007-11-07
Frequently asked questions
- What is Christopher Unrein DO PC's NPI number?
- Christopher Unrein DO PC's National Provider Identifier (NPI) is 1821191628, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Christopher Unrein DO PC?
- Christopher Unrein DO PC is classified in the NPPES registry as Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Unrein DO PC located?
- Christopher Unrein DO PC's practice location on file with NPPES is 1297 S Perry St, Castle Rock, CO 80104-1977.
- What is Christopher Unrein DO PC's phone number?
- The practice phone number listed in the NPPES registry for Christopher Unrein DO PC is (720) 529-1919.
- Who is the authorized official for Christopher Unrein DO PC?
- The authorized official listed on Christopher Unrein DO PC's NPPES record is Christopher Unrein, President/Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Christopher Unrein DO PC's NPI active?
- Yes — Christopher Unrein DO PC's NPI (1821191628) is active in the NPPES registry as of the last update on 2007-11-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.