Livia Tsien, MD
NPI 1689013229 · Internal Medicine Physician · Fort Collins, CO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Livia Tsien, MD is a Internal Medicine Physician provider in Fort Collins, CO (NPI 1689013229).
Provider details
- NPI number
- 1689013229
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- ME131624 (FL)
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 tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,306 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 329 | $63 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 325 | $82 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 292 | $15 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 178 | $47 |
| Automated Urinalysis Test81003 | 39 | $2 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 80 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 337 | 77 |
| Atorvastatin Calcium | 287 | 79 |
| Amlodipine Besylate | 224 | 55 |
| Rosuvastatin Calcium | 208 | 56 |
| Losartan Potassium | 195 | 49 |
| Gabapentin | 133 | 45 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-06-17
- Last updated
- 2019-08-13
Frequently asked questions
- What is Livia Tsien's NPI number?
- Livia Tsien's National Provider Identifier (NPI) is 1689013229, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Livia Tsien's specialty?
- Livia Tsien is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Livia Tsien located?
- Livia Tsien's practice location on file with NPPES is 4674 Snow Mesa Dr Ste 100, Fort Collins, CO 80528-8614.
- What is Livia Tsien's phone number?
- The practice phone number listed in the NPPES registry for Livia Tsien is (970) 482-3712.
- Does Livia Tsien accept Medicare?
- Livia Tsien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Livia Tsien's NPI active?
- Yes — Livia Tsien's NPI (1689013229) is active in the NPPES registry as of the last update on 2019-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.