Katherine Modzelewski, MD
NPI 1881953248 · Endocrinology, Diabetes & Metabolism Physician · Boston, MA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Modzelewski, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Boston, MA (NPI 1881953248).
Provider details
- NPI number
- 1881953248
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 269695 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
393 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 126 | $82 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 110 | $52 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 72 | $102 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 39 | $181 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 33 | $17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 85 | 27 |
| Dulaglutidebrand: Trulicity | 79 | 25 |
| Metformin Hcl | 69 | 21 |
| Levothyroxine Sodium | 67 | 19 |
| Tirzepatidebrand: Mounjaro | 66 | 17 |
| Insulin Aspartbrand: Novolog Flexpen | 55 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-05-04
- Last updated
- 2024-04-01
- Certified
- 2024-04-01
Frequently asked questions
- What is Katherine Modzelewski's NPI number?
- Katherine Modzelewski's National Provider Identifier (NPI) is 1881953248, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Modzelewski's specialty?
- Katherine Modzelewski is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Modzelewski located?
- Katherine Modzelewski's practice location on file with NPPES is 732 Harrison Ave, Fl 2, Boston, MA 02118-2309.
- What is Katherine Modzelewski's phone number?
- The practice phone number listed in the NPPES registry for Katherine Modzelewski is (617) 638-7470.
- Does Katherine Modzelewski accept Medicare?
- Katherine Modzelewski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Modzelewski's NPI active?
- Yes — Katherine Modzelewski's NPI (1881953248) is active in the NPPES registry as of the last update on 2024-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.