NPPES file of Aug 9, 2026

Mildred Diloris Rivera, MD

Internal Medicine Physician · Torrington, CT

Mildred Diloris Rivera, MD is an internal medicine physician with a practice address in Torrington, Connecticut, and NPI 1770089237, issued on Apr 3, 2018. Check the license (Connecticut 68139, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1770089237
Name
Mildred Diloris Rivera
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
68139 CT
068139 CT
Self-reported in NPPES; status is on the state search
Practice location
540 Litchfield St, Torrington, CT 06790
Phone
(860) 496-6666
Enumerated
Apr 3, 2018
Record last updated
Jul 20, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(860) 496-6783
Medicare enrollment
Enrolled (PECOS I20210721000172); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 540 Litchfield St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Charles AdamsNurse Practitioner1801930755
  2. Natalie Adamson, RD,CD-NRegistered Dietitian1942585054
  3. Fahad Ahmed, MDInternal Medicine Physician1578010773
  4. Carla AngevineRegistered Dietitian1295947091
  5. Joyce Armstrong, LCSWClinical Social Worker1881832327
  6. Allison Arnista, PA-CPhysician Assistant1689534257

Verify Mildred Diloris Rivera in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 68139
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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85% fewer Medicare Part D claims than the average internal medicine physician in 2024

482 Medicare Part D claims for 192 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 35 claims were for opioids.

  1. Mildred Rivera482
  2. Specialty average3,176

Most prescribed

  1. Prednisone36 claims
  2. Cefpodoxime Proxetil24 claims
  3. Oxycodone Hcl21 claims
  4. Pantoprazole Sodium21 claims
  5. Amlodipine Besylate20 claims
  6. Amoxicillin-Clavulanate Potass16 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): 83.3 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.

  1. Qualityout of 100 · 30% of the final score72.2
  2. Costout of 100 · 30%56.9
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $28.20

1 payment: food and beverage; the largest payer was Abbvie Inc. 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.

  1. Mildred Rivera$28.20
  2. Specialty average$1,303.06

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

  1. The Charlotte Hungerford HospitalTorrington, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mildred Diloris Rivera among 2,623 internal medicine physician records in Connecticut

Mildred Diloris Rivera, MD 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 2018, is newer than 82% of them.

  • NPI issued2018 · 82% of these records are older, 15% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2016 · median 2004 among the 1,646 with a school on file
  • Record last updated2021 · 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).

25 internal medicine physician records list a practice address in Torrington

They are 25 of the 824 NPPES records with a practice address in Torrington, and 2,623 internal medicine physician records in Connecticut.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Stephen Bryant, MDTorrington, CT 067901386655694
  2. Margaret Corrigan, M.D.Torrington, CT 067901659471290
  3. Dennis Gottfried, MDTorrington, CT 067901952322711
  4. Samar Hazzan, M.D.Torrington, CT 067901952458929
  5. David Hebert, MDTorrington, CT 067901942211289
  6. Silda James, MDTorrington, CT 067901407105992
  7. Sally Knowles, M.D., PH.D.Torrington, CT 067901750488870
  8. Amor Lomibao, MDTorrington, CT 067901760495683

Common questions

What is Mildred Diloris Rivera, MD's NPI number?

Mildred Diloris Rivera, MD's National Provider Identifier (NPI) is 1770089237, issued on Apr 3, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Mildred Diloris Rivera, MD located?

The NPPES record lists a practice address at 540 Litchfield St, Torrington, CT, 06790. Phone: (860) 496-6666. Providers update this record themselves, so call before visiting.

How can I verify Mildred Diloris Rivera, MD's license?

NPPES lists Connecticut license number 68139, 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 Mildred Diloris Rivera, MD prescribe under Medicare Part D?

In 2024, Mildred Diloris Rivera, MD had 482 Medicare Part D claims for 192 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Mildred Diloris Rivera, MD's MIPS final score?

The 2023 MIPS final score is 83.3 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.