Louise Thielen, MD
NPI 1659474625 · Family Medicine Physician · Steamboat Springs, CO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louise Thielen, MD is a Family Medicine Physician provider in Steamboat Springs, CO (NPI 1659474625).
Provider details
- NPI number
- 1659474625
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 31052 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 62 | 29 |
| Levothyroxine Sodium | 60 | 29 |
| Lisinopril | 51 | 26 |
| Losartan Potassium | 48 | 21 |
| Hydrochlorothiazide | 27 | 13 |
| Omeprazole | 27 | — |
| Gabapentin | 26 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$29 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-06
- Last updated
- 2016-03-01
Frequently asked questions
- What is Louise Thielen's NPI number?
- Louise Thielen's National Provider Identifier (NPI) is 1659474625, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louise Thielen's specialty?
- Louise Thielen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Louise Thielen located?
- Louise Thielen's practice location on file with NPPES is 1475 Pine Grove Rd, Steamboat Springs, CO 80487-8803.
- What is Louise Thielen's phone number?
- The practice phone number listed in the NPPES registry for Louise Thielen is (970) 879-0203.
- Does Louise Thielen accept Medicare?
- Louise Thielen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Louise Thielen's NPI active?
- Yes — Louise Thielen's NPI (1659474625) is active in the NPPES registry as of the last update on 2016-03-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.