NPPES file of Aug 9, 2026

William L. Karp, M.D.05

Emergency Medicine Physician · New Britain, CT

William L. Karp, M.D.05 is an emergency medicine physician with a practice address in New Britain, Connecticut, and NPI 1174550297, issued on Jun 26, 2006. Check the license (Connecticut 034004, as entered in NPPES) on the Connecticut Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1174550297
Name
William L. Karp
Credential
M.D.05
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
034004 CT
Self-reported in NPPES; status is on the state search
Practice location
100 Grand St, New Britain, CT 06052
Phone
(860) 224-5675
Enumerated
Jun 26, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(860) 224-5774
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 100 Grand St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Samantha Abraham, PA-CSurgical Physician Assistant1922580984
  2. Atif Afzal, M.D.Internal Medicine Physician1760770234
  3. Casey Aivano, APRNFamily Nurse Practitioner1366050411
  4. Kelly Alberdi, LCSWClinical Social Worker1750575452
  5. Farhana Alladin, M.DInternal Medicine Physician1891361101
  6. Maria Allen, PA-CSurgical Physician Assistant1093034431

Verify William L. Karp in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 034004
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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William L. Karp among 846 emergency medicine physician records in Connecticut

William L. Karp, M.D.05 is one of 846 emergency medicine physician records with a practice address in Connecticut. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 65% newer
  • In a Medicare fileNo · 86% of these records are
  • In the CMS Doctors and Clinicians fileNo · 68% of these records are
  • Record last updated2007 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

33 emergency medicine physician records list a practice address in New Britain

They are 33 of the 1,772 NPPES records with a practice address in New Britain, and 846 emergency medicine physician records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. David Buono, M.D.New Britain, CT 060521659321305
  2. Ronald Clark, M.D.New Britain, CT 060521154369965
  3. Dennis Dolce, M.D.New Britain, CT 060521699701946
  4. Louis Graff, M.D.New Britain, CT 060521013968767
  5. Rene Hipona, M.D.New Britain, CT 060521801846670
  6. Eric Hobert, M.D.New Britain, CT 060521639148653
  7. Edward Kim, M.D.New Britain, CT 060521598717159
  8. Lawrence Lampson, MDNew Britain, CT 060521558306431

Common questions

What is William L. Karp, M.D.05's NPI number?

William L. Karp, M.D.05's National Provider Identifier (NPI) is 1174550297, issued on Jun 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William L. Karp, M.D.05 located?

The NPPES record lists a practice address at 100 Grand St, New Britain, CT, 06052. Phone: (860) 224-5675. Providers update this record themselves, so call before visiting.

How can I verify William L. Karp, M.D.05's license?

NPPES lists Connecticut license number 034004, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.