Katherine L. Modzelewski, MD
Endocrinology, Diabetes & Metabolism Physician · Boston, MA
Katherine L. Modzelewski, MD is an endocrinology, diabetes & metabolism physician with a practice address in Boston, Massachusetts, and NPI 1881953248, issued on May 4, 2012. Check the license (Massachusetts 269695, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Katherine L. Modzelewski
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 269695 MA
Self-reported in NPPES; status is on the state search - Practice location
- 732 Harrison Ave, FL 2, Boston, MA 02118
- Phone
- (617) 638-7470
- Enumerated
- May 4, 2012
- Record last updated
- Apr 1, 2024
- Fax
- (617) 638-7449
- Medicaid IDs
- 110102721A MA
3124076 NH - Medicare enrollment
- Enrolled (PECOS I20170601001059); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 522 in Massachusetts → Look up another NPI →
Also registered at 732 Harrison Ave, FL 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sara Alexanian, MDEndocrinology, Diabetes & Metabolism Physician1609834837
- Asem Ali, MD / MBBSEndocrinology, Diabetes & Metabolism Physician1013025220
- Sonia Ananthakrishnan, M.D.Endocrinology, Diabetes & Metabolism Physician1912026543
- Mirian Barrientos, NP, MSN, MPHGerontology Nurse Practitioner1063964245
- Kristen Dimauro, NPFamily Nurse Practitioner1902397631
- Susana Ebner, M.D.Endocrinology, Diabetes & Metabolism Physician1053330332
Verify Katherine L. Modzelewski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 269695Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
1,102 Medicare Part D claims for 125 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of claims.
Most prescribed
- Lantus Solostar85 claims
- Trulicity79 claims
- Metformin Hcl69 claims
- Levothyroxine Sodium67 claims
- Mounjaro66 claims
- Novolog Flexpen55 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
- Evans Medical Foundation IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine L. Modzelewski among 522 endocrinology, diabetes & metabolism physician records in Massachusetts
Katherine L. Modzelewski, MD is one of 522 endocrinology, diabetes & metabolism physician records with a practice address in Massachusetts. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 72% of them.
- NPI issued2012 · 72% of these records are older, 25% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2012 · median 2002 among the 378 with a school on file
- Record last updated2024 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Massachusetts
There are 522 endocrinology, diabetes & metabolism physician records in Massachusetts.
All 522 in Massachusetts → Every provider in Boston → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Sara Alexanian, MDBoston, MA 021181609834837
- Beth Cohen, M.D.Boston, MA 021181457385122
- Susana Ebner, M.D.Boston, MA 021181053330332
- Alan Farwell, M.D.Boston, MA 021181699758151
- Michael Holick, M.D.Boston, MA 021181346226206
- Philip Knapp, MDBoston, MA 021181407819444
- Stephanie Lee, M.D., PH.D.Boston, MA 021181851378665
- Jennifer Lee, M.D.Boston, MA 021181457398653
Common questions
What is Katherine L. Modzelewski, MD's NPI number?
Katherine L. Modzelewski, MD's National Provider Identifier (NPI) is 1881953248, issued on May 4, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Katherine L. Modzelewski, MD located?
The NPPES record lists a practice address at 732 Harrison Ave, FL 2, Boston, MA, 02118. Phone: (617) 638-7470. Providers update this record themselves, so call before visiting.
How can I verify Katherine L. Modzelewski, MD's license?
NPPES lists Massachusetts license number 269695, 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 Katherine L. Modzelewski, MD prescribe under Medicare Part D?
In 2024, Katherine L. Modzelewski, MD had 1,102 Medicare Part D claims for 125 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.