Karl Laskowski, MD
Internal Medicine Physician · Jamaica Plain, MA
Karl Laskowski, MD is an internal medicine physician with a practice address in Jamaica Plain, Massachusetts, and NPI 1407015845, issued on Jun 2, 2008. Check the license (Massachusetts 245881, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Karl Laskowski
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 245881 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1153 Centre St, Jamaica Plain, MA 02130
- Phone
- (617) 983-4430
- Enumerated
- Jun 2, 2008
- Record last updated
- Jul 23, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (617) 983-4439
- Medicare enrollment
- Enrolled (PECOS I20121015000434); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 2008
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 1153 Centre St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- William Bachman, M.D.Cardiovascular Disease Physician1861452898
- Eva Balash, MDDermatology Physician1952405045
- Dhirendra Bana, M.D.Internal Medicine Physician1639134323
- Joseph Barr, MDOrthopaedic Surgery Physician1770564916
- Gary Brockington, MDSpecialist1376538983
- William BromstedtClinical Social Worker1649786559
Verify Karl Laskowski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 245881Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,203 Medicare Part D claims for 124 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium134 claims
- Amlodipine Besylate107 claims
- Lisinopril89 claims
- Metformin Hcl Er46 claims
- Losartan Potassium42 claims
- Omeprazole36 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
- Brigham And Womens Physicians Organization IncJamaica Plain, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karl Laskowski among 6,825 internal medicine physician records in Massachusetts
Karl Laskowski, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 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 2008, is newer than 55% of them.
- NPI issued2008 · 55% of these records are older, 40% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2008 · median 2004 among the 4,103 with a school on file
- Record last updated2012 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
53 internal medicine physician records list a practice address in Jamaica Plain
They are 53 of the 1,656 NPPES records with a practice address in Jamaica Plain, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Jamaica Plain → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Salah Alrakawi, MDJamaica Plain, MA 021301760467526
- Ashok Bhargava, MDBoston, MA 021301073595864
- Nhan Do, MDBoston, MA 021301750353967
- Staci Eisenberg, MDJamaica Plain, MA 021301033109301
- John Jewett, M.D.Jamaica Plain, MA 021301801871116
- Deborah Levy, M.D.Jamaica Plain, MA 021301659332674
- Armin Lilienfeld, MDJamaica Plain, MA 021301083604615
- Roger Mark, MDJamaica Plain, MA 021301326037219
Common questions
What is Karl Laskowski, MD's NPI number?
Karl Laskowski, MD's National Provider Identifier (NPI) is 1407015845, issued on Jun 2, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Karl Laskowski, MD located?
The NPPES record lists a practice address at 1153 Centre St, Jamaica Plain, MA, 02130. Phone: (617) 983-4430. Providers update this record themselves, so call before visiting.
How can I verify Karl Laskowski, MD's license?
NPPES lists Massachusetts license number 245881, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karl Laskowski, MD prescribe under Medicare Part D?
In 2024, Karl Laskowski, MD had 1,203 Medicare Part D claims for 124 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.