Mark W. Jankowske, D.O.
Pediatrics Physician · Springfield, MA
Mark W. Jankowske, D.O. is a pediatrics physician with a practice address in Springfield, Massachusetts, and NPI 1225247018, issued on May 21, 2007. Check the license (Massachusetts 246441, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark W. Jankowske
- Credential
- D.O.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License numbers
- 246441 MA
11922196-1204 UT
Self-reported in NPPES; status is on the state search - Practice location
- 759 Chestnut St, Springfield, MA 01107
- Phone
- (413) 794-2398
- Enumerated
- May 21, 2007
- Record last updated
- Sep 9, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (413) 794-1273
- Medicaid ID
- 110089862A MA
- Medicare enrollment
- Enrolled (PECOS I20200911001162); accepts Medicare assignment
- Medical or professional school
- Edward Via Col Of Osteo Medicine-Virginia Campus, 2007
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 2,628 in Massachusetts → Look up another NPI →
Also registered at 759 Chestnut St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark W. Jankowske in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 246441Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average pediatrics physician in 2024
135 Medicare Part D claims for 75 beneficiaries, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen12 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
- Ihc Health Services IncPark City, UT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark W. Jankowske among 2,628 pediatrics physician records in Massachusetts
Mark W. Jankowske, D.O. is one of 2,628 pediatrics physician records with a practice address in Massachusetts. 25% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 52% of them.
- NPI issued2007 · 52% of these records are older, 38% newer
- In a Medicare fileYes · 25% of these records are
- In the CMS Doctors and Clinicians fileYes · 12% of these records are
- Graduated2007 · median 2010 among the 319 with a school on file
- Record last updated2020 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
86 pediatrics physician records list a practice address in Springfield
They are 86 of the 8,553 NPPES records with a practice address in Springfield, and 2,628 pediatrics physician records in Massachusetts.
All 2,628 in Massachusetts → Every provider in Springfield → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Tatiana Bendioukova, MDSpringfield, MA 011071417064635
- Hilary Branch, MDSpringfield, MA 011071306937503
- Weijen Chang, M.D.Springfield, MA 011071235174103
- Sheila Cleary, D.O.Springfield, MA 011071982779617
- Robert Gerstle, MDSpringfield, MA 011071750472882
- Sarah Goff, MDSpringfield, MA 011071922089846
- Carolyn Goldstein, MDSpringfield, MA 011071104915560
- Audrey Guhn, MDSpringfield, MA 011071346262482
Common questions
What is Mark W. Jankowske, D.O.'s NPI number?
Mark W. Jankowske, D.O.'s National Provider Identifier (NPI) is 1225247018, issued on May 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark W. Jankowske, D.O. located?
The NPPES record lists a practice address at 759 Chestnut St, Springfield, MA, 01107. Phone: (413) 794-2398. Providers update this record themselves, so call before visiting.
How can I verify Mark W. Jankowske, D.O.'s license?
NPPES lists Massachusetts license number 246441, 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 Mark W. Jankowske, D.O. prescribe under Medicare Part D?
In 2024, Mark W. Jankowske, D.O. had 135 Medicare Part D claims for 75 beneficiaries; the average among pediatrics physician prescribers was 375. 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.