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Isabel Koelsch, M.D.
NPI 1801930110 · Dermatology Physician · Longmont, CO
Isabel Koelsch, M.D. is a Dermatology Physician provider in Longmont, CO (NPI 1801930110).
Provider details
- NPI number
- 1801930110
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 23406 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(89/100 index)
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
1850 Mountain View Ave
Longmont, CO 80501-3212
Phone: (303) 776-1500
Fax: (303) 772-2995
Street-level locationGet directions
Mailing address
1850 Mountain View Ave
Longmont, CO 80501-3212
Registry dates
- Enumerated
- 2007-02-19
- Last updated
- 2007-07-08
Frequently asked questions
- What is Isabel Koelsch's NPI number?
- Isabel Koelsch's National Provider Identifier (NPI) is 1801930110, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isabel Koelsch's specialty?
- Isabel Koelsch is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Isabel Koelsch located?
- Isabel Koelsch's practice location on file with NPPES is 1850 Mountain View Ave, Longmont, CO 80501-3212.
- What is Isabel Koelsch's phone number?
- The practice phone number listed in the NPPES registry for Isabel Koelsch is (303) 776-1500.
- Is Isabel Koelsch's NPI active?
- Yes — Isabel Koelsch's NPI (1801930110) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.