Jonathan Grecco
Internal Medicine Physician · Norwalk, CT
Jonathan Grecco is an internal medicine physician with a practice address in Norwalk, Connecticut, and NPI 1457988990, issued on Mar 25, 2020. Check the license (Connecticut 83056, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Jonathan Grecco
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 83056 CT
Self-reported in NPPES; status is on the state search - Practice location
- 40 Cross St Ste 200A, Norwalk, CT 06851
- Phone
- (203) 852-2740
- Enumerated
- Mar 25, 2020
- Record last updated
- Jun 24, 2026
- Medicare enrollment
- Enrolled (PECOS I20231216000153); 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 →
Verify Jonathan Grecco in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 83056Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average internal medicine physician in 2024
625 Medicare Part D claims for 152 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium53 claims
- Amlodipine Besylate37 claims
- Rosuvastatin Calcium28 claims
- Lisinopril24 claims
- Tamsulosin Hcl23 claims
- Losartan Potassium21 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.
Industry payments in 2024: $459.57
2 payments; by number, the most common kind was food and beverage; the largest payer was MicroVention, 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.
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
- North Shore-Lij Medical PCForest Hills, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jonathan Grecco among 2,623 internal medicine physician records in Connecticut
Jonathan Grecco 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 2020, is newer than 88% of them.
- NPI issued2020 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2020 · median 2004 among the 1,646 with a school on file
- Record last updated2026 · 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).
79 internal medicine physician records list a practice address in Norwalk
They are 79 of the 1,993 NPPES records with a practice address in Norwalk, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Norwalk → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sharyu Bande, MDNorwalk, CT 068511619130705
- Tao-Nan Chi, M.D.Norwalk, CT 068511538279583
- Charles Cochran, M.D.Norwalk, CT 068511962509489
- Marvin Den, M.D.Norwalk, CT 068511659363356
- Howard Eison, MDNorwalk, CT 068511427197086
- Sowmya Gadey, DONorwalk, CT 068511255619011
- Steven Glazer, MDNorwalk, CT 068511912011578
- Richard Huntley, M.D.Norwalk, CT 068511215929955
Common questions
What is Jonathan Grecco's NPI number?
Jonathan Grecco's National Provider Identifier (NPI) is 1457988990, issued on Mar 25, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan Grecco located?
The NPPES record lists a practice address at 40 Cross St Ste 200A, Norwalk, CT, 06851. Phone: (203) 852-2740. Providers update this record themselves, so call before visiting.
How can I verify Jonathan Grecco's license?
NPPES lists Connecticut license number 83056, 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 Jonathan Grecco prescribe under Medicare Part D?
In 2024, Jonathan Grecco had 625 Medicare Part D claims for 152 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.