Registry data as of Aug 27, 2026

Gerald Bayona, MD

Internal Medicine Physician · Tolland, CT

Gerald Bayona, MD is an internal medicine physician with a practice address in Tolland, Connecticut, and NPI 1780695692, issued on Aug 10, 2006. Check the license (Connecticut 037424, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1780695692
Name
Gerald Bayona
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
037424 CT
Self-reported in NPPES; status is on the state search
Practice location
384 Merrow RD Ste K, Tolland, CT 06084
Phone
(860) 871-8851
Enumerated
Aug 10, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 384 Merrow RD Ste K

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

  1. Diane Annibalini, PA-CMedical Physician Assistant1184956690
  2. Angela Biondi, PAMedical Physician Assistant1992959308

Verify Gerald Bayona in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 037424
    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.

3.0 times the Medicare Part D claims of the average internal medicine physician in 2024

8,309 Medicare Part D claims for 942 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 272 claims were for opioids.

  1. Gerald Bayona8,309
  2. Specialty average2,785

Most prescribed

  1. Atorvastatin Calcium614 claims
  2. Levothyroxine Sodium430 claims
  3. Lisinopril329 claims
  4. Rosuvastatin Calcium225 claims
  5. Amlodipine Besylate211 claims
  6. Metformin Hcl206 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.

One hospital or facility affiliation

  1. Prohealth Physicians PCTolland, CT

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Internal Medicine Physician providers in Connecticut

There are 2,830 internal medicine physician records in Connecticut.

Other internal medicine physician records in Connecticut

  1. Christina AbavanaBridgeport, CT1508206574
  2. Hoda Abdel Salam, M.D.New Britain, CT1144509316
  3. Gada Abdelhafiz, MDNew London, CT1467649558
  4. Mahmoud Abdelrahman, MDBridgeport, CT1467072868
  5. Simon Abi-SalehBridgeport, CT1891315529
  6. Gerard Abidor, D.O.Bridgeport, CT1518014539
  7. Richard Abraham, M.D.Canton, CT1023044252
  8. Odaliz Abreu-Lanfranco, MDNew Haven, CT1538276134
  9. Nila Aburto, MDStamford, CT1396325718
  10. Angelo Accomando, M.D.East Haven, CT1063454247

Common questions

What is Gerald Bayona, MD's NPI number?

Gerald Bayona, MD's National Provider Identifier (NPI) is 1780695692, issued on Aug 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gerald Bayona, MD located?

The NPPES record lists a practice address at 384 Merrow RD Ste K, Tolland, CT, 06084. Phone: (860) 871-8851. Providers update this record themselves, so call before visiting.

How can I verify Gerald Bayona, MD's license?

NPPES lists Connecticut license number 037424, 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 Gerald Bayona, MD prescribe under Medicare Part D?

In 2024, Gerald Bayona, MD had 8,309 Medicare Part D claims for 942 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.