Gerald M. Bayona, MD
Internal Medicine Physician · Tolland, CT
Gerald M. 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.
- Name
- Gerald M. 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
- Record last updated
- Mar 9, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (860) 871-8852
- Medicare enrollment
- Enrolled (PECOS I20040518000858); 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 384 Merrow RD Ste K
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Diane Annibalini, PA-CPhysician Assistant1184956690
- Angela Biondi, PAMedical Physician Assistant1992959308
Verify Gerald M. Bayona in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 037424Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 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 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 272 claims were for opioids.
Most prescribed
- Atorvastatin Calcium614 claims
- Levothyroxine Sodium430 claims
- Lisinopril329 claims
- Rosuvastatin Calcium225 claims
- Amlodipine Besylate211 claims
- 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.
Bills Medicare through one group practice
- Prohealth Physicians PCTolland, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gerald M. Bayona among 2,623 internal medicine physician records in Connecticut
Gerald M. Bayona, 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 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 52% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1985 · median 2004 among the 1,646 with a school on file
- Record last updated2015 · 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).
Internal Medicine Physician providers in Connecticut
There are 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Tolland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Harold Sandals, M.D.Tolland, CT 060841659348134
- John Bedford, M.D.Enfield, CT 060821912965542
- Joseph Breton, M.DEnfield, CT 060821932206232
- George Donahue, MDEnfield, CT 060821710964325
- Peter Drennan, D.O.Enfield, CT 060821629043625
- Marat Gitman, DOEnfield, CT 060821396907069
- Canan Gunay, M.D.Enfield, CT 060821972829547
- Izabela Krakowiak Colasacco, D.O.Enfield, CT 060821972795102
Common questions
What is Gerald M. Bayona, MD's NPI number?
Gerald M. 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 M. 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 M. 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 M. Bayona, MD prescribe under Medicare Part D?
In 2024, Gerald M. Bayona, MD had 8,309 Medicare Part D claims for 942 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.