NPPES file of Aug 9, 2026

Lawrence E. Colassacco, MD

Family Medicine Physician · De Pere, WI

Lawrence E. Colassacco, MD is a family medicine physician with a practice address in De Pere, Wisconsin, and NPI 1366451429, issued on Aug 7, 2006. Check the license (Wisconsin 46043, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1366451429
Name
Lawrence E. Colassacco
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
46043 WI
Self-reported in NPPES; status is on the state search
Practice location
1881 Chicago St, De Pere, WI 54115
Phone
(920) 403-8000
Enumerated
Aug 7, 2006
Record last updated
Mar 7, 2023
Fax
(920) 403-8202
Medicaid ID
34504400 WI
Medicare enrollment
Enrolled (PECOS I20040726000550); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 2001
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1881 Chicago St

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

  1. Indira Andhole, MDPediatrics Physician1184632747
  2. Jesusa Andres-Palines, MDInternal Medicine Physician1043228612
  3. Raymond Bachhuber, MDInternal Medicine Physician1508874223
  4. Ronald Barnes, MDFamily Medicine Physician1902814635
  5. Leah Brittnacher, LMHP, PLPPsychologist1497187298
  6. Manisha Chaturvedi, MDFamily Medicine Physician1023329042

Verify Lawrence E. Colassacco in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 46043
    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 Wisconsin 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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2.4 times the Medicare Part D claims of the average family medicine physician in 2024

8,388 Medicare Part D claims for 477 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 46 claims were for opioids.

  1. Lawrence Colassacco8,388
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium564 claims
  2. Amlodipine Besylate396 claims
  3. Pantoprazole Sodium331 claims
  4. Rosuvastatin Calcium279 claims
  5. Lisinopril253 claims
  6. Levothyroxine Sodium237 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.

Bills Medicare through one group practice

  1. Aurora Medical Group, Inc.Milwaukee, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Lawrence E. Colassacco among 3,765 family medicine physician records in Wisconsin

Lawrence E. Colassacco, MD is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 46% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2001 · median 2007 among the 2,347 with a school on file
  • Record last updated2023 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

29 family medicine physician records list a practice address in De Pere

They are 29 of the 621 NPPES records with a practice address in De Pere, and 3,765 family medicine physician records in Wisconsin.

The 8 family medicine physician records with the nearest ZIP codes

  1. Stephen Asma, MDDe Pere, WI 541151639103187
  2. Michael Hodulik, M.D.De Pere, WI 541151295784544
  3. James Joyce, MDDe Pere, WI 541151326017724
  4. Cynthia Lasecki, MDDe Pere, WI 541151871577577
  5. Gary Leong, MDDe Pere, WI 541151801870514
  6. Kristen Lindgren, MDDe Pere, WI 541151740214022
  7. Michael Meyer, MDDe Pere, WI 541151487639761
  8. Steven Novotny, MDDe Pere, WI 541151427032069

Common questions

What is Lawrence E. Colassacco, MD's NPI number?

Lawrence E. Colassacco, MD's National Provider Identifier (NPI) is 1366451429, issued on Aug 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Lawrence E. Colassacco, MD located?

The NPPES record lists a practice address at 1881 Chicago St, De Pere, WI, 54115. Phone: (920) 403-8000. Providers update this record themselves, so call before visiting.

How can I verify Lawrence E. Colassacco, MD's license?

NPPES lists Wisconsin license number 46043, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Lawrence E. Colassacco, MD prescribe under Medicare Part D?

In 2024, Lawrence E. Colassacco, MD had 8,388 Medicare Part D claims for 477 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

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.