Uyen to, M.D.
NPI 1770873812 · Hepatology Physician · Hartford, CT
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Uyen to, M.D. is a Hepatology Physician provider in Hartford, CT (NPI 1770873812).
Provider details
- NPI number
- 1770873812
- Entity type
- Individual
- Primary specialty
- Hepatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 1.060593 (CT)
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
15 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
153 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 67 | $79 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 31 | $99 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 19 | $134 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 19 | $134 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 17 | $95 |
Typical Medicare-allowed amounts for these services range $79–$134 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rifaximinbrand: Xifaxan | 87 | 11 |
| Ursodiol | 84 | 20 |
| Pantoprazole Sodium | 65 | 19 |
| Furosemide | 53 | 18 |
| Tamsulosin Hcl | 27 | — |
| Tacrolimus | 27 | — |
| Lactulose | 26 | — |
| Spironolactone |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-04-11
- Last updated
- 2025-08-06
- Certified
- 2025-08-04
Frequently asked questions
- What is Uyen to's NPI number?
- Uyen to's National Provider Identifier (NPI) is 1770873812, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Uyen to's specialty?
- Uyen to is listed in the NPPES registry with a primary specialty of Hepatology Physician (Allopathic & Osteopathic Physicians).
- Where is Uyen to located?
- Uyen to's practice location on file with NPPES is 85 Seymour St Ste 1000, Hartford, CT 06106-5529.
- What is Uyen to's phone number?
- The practice phone number listed in the NPPES registry for Uyen to is (860) 246-2571.
- Does Uyen to accept Medicare?
- Uyen to is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Uyen to's NPI active?
- Yes — Uyen to's NPI (1770873812) is active in the NPPES registry as of the last update on 2025-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.