Lena Wu Rivas, M.D.
NPI 1679806046ActiveIndividual· Internal Medicine· Milford, CT
Internal Medicine (M.D.) with Hhc Physician Services PLLC, practicing in Milford, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $1,693,057 for 28,638 claims, against $68,365 paid for services in 2024. Dexcom, Inc. reported $17.88 in payments in 2025, mostly food and beverage. Lists Bridgeport Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1679806046 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 16, 2009 |
| Last updated in NPPES | Nov 1, 2023 |
| Certified by provider | Nov 1, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 051228 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 328 |
|---|---|
| Services billed | 1,054 across 42 procedure codes |
| Paid by Medicare | $68,365 |
Part D prescriptions in 2024
| Prescriptions (claims) | 28,638 · 36,790 30-day fills |
|---|---|
| Patients | 868 |
| Total drug cost | $1,693,057 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Hhc Physician Services PLLCHamden, CT · 132 clinicians
Hospital affiliations
- Bridgeport HospitalBridgeport, CT
- Griffin HospitalDerby, CT
- St Vincent's Medical CenterBridgeport, CT
- Yale-New Haven HospitalNew Haven, CT
Other facilities
- Enhabit Home HealthHome health agency · Rocky Hill, CT
- Hartford Healthcare at HomeHome health agency · East Hartford, CT
- Masters in Home Care, LLCHome health agency · Rocky Hill, CT
- Orange Visiting Nurse AssociationHome health agency · Orange, CT
- Yale New Haven Health - Health at HomeHome health agency · Milford, CT
- Athena Home Health & HospiceHospice · Farmington, CT
- Caring Hospice Services of Connecticut LLCHospice · Stamford, CT
- Connecticut Hospice Inc, theHospice · Branford, CT
- Constellation Home CareHospice · Norwalk, CT
- Franciscan Family Care Center,Hospice · Meriden, CT
- Gardner Heights Health Care Center, IncNursing home · Shelton, CT
- Mary Wade HomeNursing home · New Haven, CT
- Masonicare at Bishop Wicke Health & RehabilitationNursing home · Shelton, CT
- New Haven Center for Nursing & Rehabilitation LLCNursing home · New Haven, CT
Industry payments (Open Payments)
- 2025$17.88 · 1 payment from 1 company
- 2024$120.98 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dexcom, Inc. | $17.88 | 1 |
What the 2025 payments were for
- Food and Beverage$17.88 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 47 internal medicine physicians in Milford · All internal medicine physicians in Connecticut