Livia Selina Tsien, MD
Internal Medicine Physician · Fort Collins, CO
Livia Selina Tsien, MD is an internal medicine physician with a practice address in Fort Collins, Colorado, and NPI 1689013229, issued on Jun 17, 2013. Check the license (Colorado DR.0061981, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Livia Selina Tsien
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- DR.0061981 CO
ME131624 FL
35972 SC
Self-reported in NPPES; status is on the state search - Practice location
- 4674 Snow Mesa Dr Ste 100, Fort Collins, CO 80528
- Phone
- (970) 482-3712
- Enumerated
- Jun 17, 2013
- Record last updated
- Aug 13, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (970) 266-4190
- Medicaid ID
- 021039400 FL
- Medicare enrollment
- Enrolled (PECOS I20190904000241); accepts Medicare assignment
- Medical or professional school
- University Of Colorado School Of Medicine, Denver, 2013
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Also registered at 4674 Snow Mesa Dr Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gregory Clark, APNFamily Nurse Practitioner1497322408
- Benjamin LeonInternal Medicine Physician1609300441
- Cynthia Loffler, N.P.Adult Health Nurse Practitioner1831479146
- Heidi Maijub Triana, MA, LPC - SProfessional Counselor1639811524
- Cameron Suarez, MD, MPHInternal Medicine Physician1871098640
- Brian Toshcoff, DOPsychiatry Physician1457376105
Verify Livia Selina Tsien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0061981Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% more Medicare Part D claims than the average internal medicine physician in 2024
4,723 Medicare Part D claims for 410 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 73 claims were for opioids.
Most prescribed
- Levothyroxine Sodium337 claims
- Atorvastatin Calcium287 claims
- Amlodipine Besylate224 claims
- Rosuvastatin Calcium208 claims
- Losartan Potassium195 claims
- Gabapentin133 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Poudre Valley Medical Group LLCFort Collins, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Livia Selina Tsien among 2,046 internal medicine physician records in Colorado
Livia Selina Tsien, MD is one of 2,046 internal medicine physician records with a practice address in Colorado. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 74% of them.
- NPI issued2013 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2013 · median 2006 among the 1,090 with a school on file
- Record last updated2019 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in Colorado
There are 2,046 internal medicine physician records in Colorado.
All 2,046 in Colorado → Every provider in Fort Collins → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Nathan Brinn, MDFort Collins, CO 805281851377071
- Carrie Campbell Broughton, MDFort Collins, CO 805281295737526
- Nicola Demacopoulos, MDFort Collins, CO 805281205813839
- Jennifer Hendrick, MDFort Collins, CO 805281144256728
- Robert Juhala, MDFort Collins, CO 805281851329973
- Helen Kilzer, MDFort Collins, CO 805281538182993
- Christina Lang, M.D.Fort Collins, CO 805281639274285
- Samuel Mast, M.D.Fort Collins, CO 805281780970426
Common questions
What is Livia Selina Tsien, MD's NPI number?
Livia Selina Tsien, MD's National Provider Identifier (NPI) is 1689013229, issued on Jun 17, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Livia Selina Tsien, MD located?
The NPPES record lists a practice address at 4674 Snow Mesa Dr Ste 100, Fort Collins, CO, 80528. Phone: (970) 482-3712. Providers update this record themselves, so call before visiting.
How can I verify Livia Selina Tsien, MD's license?
NPPES lists Colorado license number DR.0061981, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Livia Selina Tsien, MD prescribe under Medicare Part D?
In 2024, Livia Selina Tsien, MD had 4,723 Medicare Part D claims for 410 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.