Naiem Nassiri, MD
Vascular Surgery Physician · Darien, CT
Naiem Nassiri, MD is a vascular surgery physician with a practice address in Darien, Connecticut, and NPI 1033366745, issued on Aug 25, 2008. Check the license (Connecticut 56696, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Naiem Nassiri
- Credential
- MD
- Primary taxonomy
- Vascular Surgery Physician 2086S0129X
- License numbers
- 56696 CT
25MA09308000 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 330 Boston Post RD Ste 240, Darien, CT 06820
- Phone
- (203) 548-7858
- Enumerated
- Aug 25, 2008
- Record last updated
- Mar 4, 2026
- Fax
- (203) 439-4839
- Medicare enrollment
- Enrolled (PECOS I20170831001456); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 2008
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 330 Boston Post RD Ste 240
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Gedney, MDVascular Surgery Physician1770109761
- Andrew LazarVascular Surgery Physician1225490527
- Chong Li, MDVascular Surgery Physician1467941203
- Jacklyn Truong, NPNurse Practitioner1609506179
Verify Naiem Nassiri in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 56696Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average vascular surgery physician in 2024
119 Medicare Part D claims for 41 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Clopidogrel66 claims
- Prednisone21 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 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: $31,827.91
80 payments; by number, the most common kind was food and beverage; the largest payer was Silk Road Medical, Inc. The 4,059 providers of this specialty with any payment received $6,178.00 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
- Vascular CT PLLCDarien, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
8 vascular surgery physician records list a practice address in Darien
They are 8 of the 380 NPPES records with a practice address in Darien, and 89 vascular surgery physician records in Connecticut.
All 8 in Darien → All 89 in Connecticut → Every provider in Darien →
Other vascular surgery physician records in Connecticut
- Edouard Aboian, M.D.New Haven, CT1588830566
- Elizabeth Aitcheson, M.D.Hartford, CT1578900320
- Philip AllmendingerHartford, CT1861492241
- Kwame Amankwah, MDFarmington, CT1508815762
- Tamil Anban, MDVernon, CT1639141286
- Isibor Arhuidese, MDNew Haven, CT1568825966
- Stephen Bauer, MDStamford, CT1477610913
- Andrew BaxterFairfield, CT1124346481
- Seth Blattman, M.D.Fairfield, CT1477508778
- Robert Botta, M.D.Watertown, CT1780094326
Common questions
What is Naiem Nassiri, MD's NPI number?
Naiem Nassiri, MD's National Provider Identifier (NPI) is 1033366745, issued on Aug 25, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Naiem Nassiri, MD located?
The NPPES record lists a practice address at 330 Boston Post RD Ste 240, Darien, CT, 06820. Phone: (203) 548-7858. Providers update this record themselves, so call before visiting.
How can I verify Naiem Nassiri, MD's license?
NPPES lists Connecticut license number 56696, 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 Naiem Nassiri, MD prescribe under Medicare Part D?
In 2024, Naiem Nassiri, MD had 119 Medicare Part D claims for 41 beneficiaries; the average among vascular surgery physician prescribers was 201. Part D covers Medicare prescriptions only.
What is Naiem Nassiri, 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.