Karl L. Insogna, MD
Endocrinology, Diabetes & Metabolism Physician · New Haven, CT
Karl L. Insogna, MD is an endocrinology, diabetes & metabolism physician with a practice address in New Haven, Connecticut, and NPI 1346223559, issued on Nov 22, 2005. Check the license (Connecticut 022077, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Karl L. Insogna
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 022077 CT
Self-reported in NPPES; status is on the state search - Practice location
- 789 Howard Ave, New Haven, CT 06519
- Phone
- (203) 737-1932
- Enumerated
- Nov 22, 2005
- Record last updated
- May 15, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (203) 737-2812
- Medicaid ID
- 001220771 CT
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 214 in Connecticut → Look up another NPI →
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A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karl L. Insogna in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 022077Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 73.6 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: $14,973.62
18 payments; by number, the most common kind was food and beverage; the largest payer was Kyowa Kirin, Inc. The 5,661 providers of this specialty with any payment received $5,742.15 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.
Karl L. Insogna among 214 endocrinology, diabetes & metabolism physician records in Connecticut
Karl L. Insogna, MD is one of 214 endocrinology, diabetes & metabolism physician records with a practice address in Connecticut. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2012 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Connecticut
There are 214 endocrinology, diabetes & metabolism physician records in Connecticut.
All 214 in Connecticut → Every provider in New Haven → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Anika Anam, M.D.New Haven, CT 065191376885905
- Clemens Bergwitz, MDNew Haven, CT 065191518957067
- Jonathan Bogan, MDNew Haven, CT 065191326021536
- Sonia Hegde, D.O.New Haven, CT 065191487870101
- Silvio Inzucchi, MDNew Haven, CT 065191073598538
- Grace Lee, M.D.New Haven, CT 065191760666929
- Kavya Chitra Mekala, MDNew Haven, CT 065191437320959
- Gerald Shulman, MDNew Haven, CT 065191235112319
Common questions
What is Karl L. Insogna, MD's NPI number?
Karl L. Insogna, MD's National Provider Identifier (NPI) is 1346223559, issued on Nov 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Karl L. Insogna, MD located?
The NPPES record lists a practice address at 789 Howard Ave, New Haven, CT, 06519. Phone: (203) 737-1932. Providers update this record themselves, so call before visiting.
How can I verify Karl L. Insogna, MD's license?
NPPES lists Connecticut license number 022077, 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.
What is Karl L. Insogna, MD's MIPS final score?
The 2023 MIPS final score is 73.6 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.