Michelle Liu, MD
NPI 1841874690 · Hospitalist Physician · New Haven, CT
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michelle Liu, MD is a Hospitalist Physician provider in New Haven, CT (NPI 1841874690).
Provider details
- NPI number
- 1841874690
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 77020 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 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
97 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 | 52 | $80 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 25 | $51 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 20 | $177 |
Typical Medicare-allowed amounts for these services range $51–$177 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 13 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Gabapentin | 19 |
| Atorvastatin Calcium | 18 |
| Levothyroxine Sodium | 18 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 17 |
| Amlodipine Besylate | 17 |
| Omeprazole | 15 |
| Diclofenac Sodium | 14 |
| Rosuvastatin Calcium | 14 |
| Empagliflozin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-05-07
- Last updated
- 2024-06-22
- Certified
- 2024-06-22
Frequently asked questions
- What is Michelle Liu's NPI number?
- Michelle Liu's National Provider Identifier (NPI) is 1841874690, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michelle Liu's specialty?
- Michelle Liu is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Michelle Liu located?
- Michelle Liu's practice location on file with NPPES is 20 York St, New Haven, CT 06510-3220.
- What is Michelle Liu's phone number?
- The practice phone number listed in the NPPES registry for Michelle Liu is (203) 688-4242.
- Does Michelle Liu accept Medicare?
- Michelle Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michelle Liu's NPI active?
- Yes — Michelle Liu's NPI (1841874690) is active in the NPPES registry as of the last update on 2024-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.