Joseph Costanzo, MD
Internal Medicine Physician · Stamford, CT
Joseph Costanzo, MD is an internal medicine physician with a practice address in Stamford, Connecticut, and NPI 1093810368, issued on Sep 13, 2006. Check the license (Connecticut 030781, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Joseph Costanzo
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 030781 CT
Self-reported in NPPES; status is on the state search - Practice location
- 292 Long Ridge RD, Stamford, CT 06902
- Phone
- (203) 348-9455
- Enumerated
- Sep 13, 2006
- Entity
- Type 1 · individual
Also registered at 292 Long Ridge RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jill Ely, APRNFamily Nurse Practitioner1528141504
- Melissa Goldstein, M.D.Endocrinology, Diabetes & Metabolism Physician1689835878
- Rebekah Gospin, M.D.Endocrinology, Diabetes & Metabolism Physician1528367026
Verify Joseph Costanzo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 030781Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
74% more Medicare Part D claims than the average internal medicine physician in 2024
5,512 Medicare Part D claims for 573 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 92 claims were for opioids.
Most prescribed
- Atorvastatin Calcium403 claims
- Amlodipine Besylate327 claims
- Losartan Potassium249 claims
- Rosuvastatin Calcium216 claims
- Metoprolol Succinate209 claims
- Levothyroxine Sodium170 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 Medicare quality score for 2023: 79.1 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).
Bills Medicare through one group practice
- Stamford Health Medical Group IncStamford, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
131 internal medicine physician records list a practice address in Stamford
They are 131 of the 2,774 NPPES records with a practice address in Stamford, and 2,623 internal medicine physician records in Connecticut.
All 131 in Stamford → All 2,623 in Connecticut → Every provider in Stamford →
Other internal medicine physician records in Connecticut
- Hoda Abdel Salam, M.D.New Britain, CT1144509316
- Gada Abdelhafiz, MDNew London, CT1467649558
- Racha Abi Melhem, MDDerby, CT1902471352
- Gerard Abidor, D.O.Bridgeport, CT1518014539
- Lilyan AbrahamFarmington, CT1447693254
- Richard Abraham, M.D.Canton, CT1023044252
- Odaliz Abreu-Lanfranco, MDNew Haven, CT1538276134
- Kenneth Abriola, MDGlastonbury, CT1083693022
- Florentino Abueg, MDSouthbury, CT1649372558
- Nila Aburto, MDStamford, CT1396325718
Common questions
What is Joseph Costanzo, MD's NPI number?
Joseph Costanzo, MD's National Provider Identifier (NPI) is 1093810368, issued on Sep 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Costanzo, MD located?
The NPPES record lists a practice address at 292 Long Ridge RD, Stamford, CT, 06902. Phone: (203) 348-9455. Providers update this record themselves, so call before visiting.
How can I verify Joseph Costanzo, MD's license?
NPPES lists Connecticut license number 030781, 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 Joseph Costanzo, MD prescribe under Medicare Part D?
In 2024, Joseph Costanzo, MD had 5,512 Medicare Part D claims for 573 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Joseph Costanzo, MD's Medicare quality score?
The 2023 MIPS final score is 79.1 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), 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.
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) 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 27, 2026.