Walter E. Longo, MD
Colon & Rectal Surgery Physician · New Haven, CT
Walter E. Longo, MD is a colon & rectal surgery physician with a practice address in New Haven, Connecticut, and NPI 1831160936, issued on Jan 28, 2006. Check the license (Connecticut 028590, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Walter E. Longo
- Credential
- MD
- Primary taxonomy
- Colon & Rectal Surgery Physician 208C00000X
- License number
- 028590 CT
Self-reported in NPPES; status is on the state search - Practice location
- 800 Howard Ave, New Haven, CT 06519
- Phone
- (203) 785-4079
- Enumerated
- Jan 28, 2006
- Record last updated
- Mar 11, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (203) 737-4033
- Medicaid ID
- 001285908 CT
- Entity
- Type 1 · individual
8 nearest colon & rectal surgery physician records → All 54 in Connecticut → Look up another NPI →
Also registered at 800 Howard Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lynn Acton, MSSpeech-Language Pathologist1205817889
- Joseph Agostini, MDGeriatric Medicine (Internal Medicine) Physician1104832146
- Nita Ahuja, M.D.Surgery Physician1093779308
- Christina Allen, MDSports Medicine (Orthopaedic Surgery) Physician1841242351
Verify Walter E. Longo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 028590Check 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).
Walter E. Longo among 54 colon & rectal surgery physician records in Connecticut
Walter E. Longo, MD is one of 54 colon & rectal surgery physician records with a practice address in Connecticut. 87% 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, 54% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileNo · 80% of these records are
- Record last updated2011 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208C00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Colon & Rectal Surgery Physician providers in Connecticut
There are 54 colon & rectal surgery physician records in Connecticut.
All 54 in Connecticut → Every provider in New Haven → Colon & Rectal Surgery Physician nationwide →
The 8 colon & rectal surgery physician records with the nearest ZIP codes
- Anne Mongiu, MD, PHDNew Haven, CT 065191356580575
- Haddon Pantel, M.D.New Haven, CT 065191316386261
- John Aversa, D.OHamden, CT 065181588830699
- Julia Zakhaleva, MDHamden, CT 065181154574606
- George Yavorek, MDNew Haven, CT 065111568552461
- Hulda Einarsdottir, M.D.New Haven, CT 065101962639963
- Vikram Reddy, M.D., PH.D.New Haven, CT 065101770717753
- Maurizio NicheleOld Saybrook, CT 064751245264258
Common questions
What is Walter E. Longo, MD's NPI number?
Walter E. Longo, MD's National Provider Identifier (NPI) is 1831160936, issued on Jan 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Walter E. Longo, MD located?
The NPPES record lists a practice address at 800 Howard Ave, New Haven, CT, 06519. Phone: (203) 785-4079. Providers update this record themselves, so call before visiting.
How can I verify Walter E. Longo, MD's license?
NPPES lists Connecticut license number 028590, 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 Walter E. Longo, 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.