Lena Wu Rivas, M.D.
Internal Medicine Physician · Milford, CT
Lena Wu Rivas, M.D. is an internal medicine physician with a practice address in Milford, Connecticut, and NPI 1679806046, issued on Sep 16, 2009. Check the license (Connecticut 051228, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Lena Wu Rivas
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 051228 CT
Self-reported in NPPES; status is on the state search - Practice location
- 1622 Boston Post RD, Milford, CT 06460
- Phone
- (475) 209-9130
- Enumerated
- Sep 16, 2009
- Record last updated
- Nov 1, 2023
- Fax
- (203) 298-4380
- Medicare enrollment
- Enrolled (PECOS I20130103000043); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 1622 Boston Post RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ela Eris, M.D.Internal Medicine Physician1386038784
- Diane Graham, APRNFamily Nurse Practitioner1760021539
- Shobha Jagadeesh, MDInternal Medicine Physician1174538508
- Nitai Riegler, MDInternal Medicine Physician1225124514
- Trudi Schultz, APRNFamily Nurse Practitioner1235907569
Verify Lena Wu Rivas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 051228Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9.0 times the Medicare Part D claims of the average internal medicine physician in 2024
28,638 Medicare Part D claims for 868 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 107 claims were for opioids.
Most prescribed
- Amlodipine Besylate1,342 claims
- Levothyroxine Sodium1,271 claims
- Atorvastatin Calcium1,237 claims
- Trazodone Hcl1,090 claims
- Gabapentin859 claims
- Metoprolol Succinate830 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 90.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $120.98
1 payment: food and beverage; the largest payer was Lilly USA, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Hhc Physician Services PLLCHamden, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lena Wu Rivas among 2,623 internal medicine physician records in Connecticut
Lena Wu Rivas, M.D. is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 60% of them.
- NPI issued2009 · 60% of these records are older, 38% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2006 · median 2004 among the 1,646 with a school on file
- Record last updated2023 · 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
33 internal medicine physician records list a practice address in Milford
They are 33 of the 1,073 NPPES records with a practice address in Milford, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Milford → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Brian Beaulieu, M. D.Milford, CT 064601588608384
- Robin Brammer, DOMilford, CT 064601275575995
- Deborah Caserta-Brunson, MDMilford, CT 064601659392363
- Dean Har, MDMilford, CT 064601104857150
- Shobha Jagadeesh, MDMilford, CT 064601174538508
- John Katsetos, MDMilford, CT 064601831121979
- Aleflor Ragaza, MDMilford, CT 064601841275666
- Michael Rudolph, M.D.Milford, CT 064601700999000
Common questions
What is Lena Wu Rivas, M.D.'s NPI number?
Lena Wu Rivas, M.D.'s National Provider Identifier (NPI) is 1679806046, issued on Sep 16, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Lena Wu Rivas, M.D. located?
The NPPES record lists a practice address at 1622 Boston Post RD, Milford, CT, 06460. Phone: (475) 209-9130. Providers update this record themselves, so call before visiting.
How can I verify Lena Wu Rivas, M.D.'s license?
NPPES lists Connecticut license number 051228, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Lena Wu Rivas, M.D. prescribe under Medicare Part D?
In 2024, Lena Wu Rivas, M.D. had 28,638 Medicare Part D claims for 868 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Lena Wu Rivas, M.D.'s MIPS final score?
The 2023 MIPS final score is 90.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.