Sarah Knapp, M.D.
NPI 1902253586 · Endocrinology, Diabetes & Metabolism Physician · Boston, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sarah Knapp, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Boston, MA (NPI 1902253586).
Provider details
- NPI number
- 1902253586
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 268164 (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
10 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
638 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) |
|---|---|---|
| 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 | 200 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 186 | $102 |
| 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 | 82 | $17 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 67 | $150 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 159 | 56 |
| Alendronate Sodium | 96 | 33 |
| Levothyroxine Sodiumbrand: Synthroid | 43 | 15 |
| Methimazole | 27 | — |
| Empagliflozinbrand: Jardiance | 21 | — |
| Glipizidebrand: Glipizide Er | 20 | — |
| Linagliptinbrand: Tradjenta |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-05-24
- Last updated
- 2022-01-13
- Certified
- 2022-01-13
Frequently asked questions
- What is Sarah Knapp's NPI number?
- Sarah Knapp's National Provider Identifier (NPI) is 1902253586, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Knapp's specialty?
- Sarah Knapp is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Sarah Knapp located?
- Sarah Knapp's practice location on file with NPPES is 330 Brookline Ave, Boston, MA 02215-5400.
- What is Sarah Knapp's phone number?
- The practice phone number listed in the NPPES registry for Sarah Knapp is (617) 667-7000.
- Does Sarah Knapp accept Medicare?
- Sarah Knapp is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sarah Knapp's NPI active?
- Yes — Sarah Knapp's NPI (1902253586) is active in the NPPES registry as of the last update on 2022-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.