Kristen Hysell, M.D.
NPI 1669884672 · Infectious Disease Physician · Boston, MA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kristen Hysell, M.D. is a Infectious Disease Physician provider in Boston, MA (NPI 1669884672).
Provider details
- NPI number
- 1669884672
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
159 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 | 61 | $82 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 34 | $102 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 27 | $135 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 20 | $180 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 17 | $152 |
Typical Medicare-allowed amounts for these services range $82–$180 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 29 |
| Emtricitabine/Tenofov Alafenambrand: Descovy | 20 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 17 |
| Dolutegravir Sodiumbrand: Tivicay | 16 |
| Cefadroxil | 15 |
| Doxycycline Monohydrate | 15 |
| Dolutegravir/Rilpivirinebrand: Juluca | 13 |
| Testosterone | 12 |
| Raltegravir Potassiumbrand: Isentress |
Practice location
Mailing address
Additional practice locations (3)
- 20 York StNew Haven, CT 06510-3220Phone: (203) 688-4242
- 75 Francis StBoston, MA 02115-6110Phone: (617) 732-5500
- 15 Francis StBoston, MA 02115Phone: (617) 732-8881
Registry dates
- Enumerated
- 2014-05-24
- Last updated
- 2019-08-08
Frequently asked questions
- What is Kristen Hysell's NPI number?
- Kristen Hysell's National Provider Identifier (NPI) is 1669884672, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kristen Hysell's specialty?
- Kristen Hysell is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Kristen Hysell located?
- Kristen Hysell's practice location on file with NPPES is 15 Francis St, Boston, MA 02115.
- What is Kristen Hysell's phone number?
- The practice phone number listed in the NPPES registry for Kristen Hysell is (617) 732-8881.
- Does Kristen Hysell accept Medicare?
- Kristen Hysell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kristen Hysell's NPI active?
- Yes — Kristen Hysell's NPI (1669884672) is active in the NPPES registry as of the last update on 2019-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.