Ritche Hao, M.D.
NPI 1912009655 · Infectious Disease Physician · New Haven, CT
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ritche Hao, M.D. is a Infectious Disease Physician provider in New Haven, CT (NPI 1912009655).
Provider details
- NPI number
- 1912009655
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 049258 (CT)
Specialties & taxonomies
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
19 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
307 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 97 | $107 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 70 | $121 |
| 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 | 53 | $17 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 35 | $81 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 21 | $177 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Amoxicillin | 25 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 23 |
| Tramadol Hcl | 21 |
| Methenamine Hippurate | 15 |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 15 |
| Dolutegravir Sodium/Lamivudinebrand: Dovato | 14 |
| Doxycycline Hyclate | 14 |
| Diclofenac Sodium | 12 |
| Cefadroxil | 11 |
| Cefazolin Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-02
- Last updated
- 2011-08-04
Frequently asked questions
- What is Ritche Hao's NPI number?
- Ritche Hao's National Provider Identifier (NPI) is 1912009655, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ritche Hao's specialty?
- Ritche Hao is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Ritche Hao located?
- Ritche Hao's practice location on file with NPPES is 1450 Chapel St, New Haven, CT 06511-4405.
- What is Ritche Hao's phone number?
- The practice phone number listed in the NPPES registry for Ritche Hao is (203) 789-4135.
- Does Ritche Hao accept Medicare?
- Ritche Hao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ritche Hao's NPI active?
- Yes — Ritche Hao's NPI (1912009655) is active in the NPPES registry as of the last update on 2011-08-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.