Christina Kassab, D.O.
NPI 1558709626 · Internal Medicine Physician · Burlington, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christina Kassab, D.O. is a Internal Medicine Physician provider in Burlington, MA (NPI 1558709626).
Provider details
- NPI number
- 1558709626
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 5101020329 (MI)
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
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
476 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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 192 | $173 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 177 | $118 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 76 | $113 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 16 | $78 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 15 | $49 |
Typical Medicare-allowed amounts for these services range $49–$173 (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.
Practice location
Mailing address
Additional practice locations (1)
- 17010 Crescent DrSouthfield, MI 48076-2018Phone: (248) 819-2647
Registry dates
- Enumerated
- 2013-06-11
- Last updated
- 2023-02-13
- Certified
- 2023-02-13
Frequently asked questions
- What is Christina Kassab's NPI number?
- Christina Kassab's National Provider Identifier (NPI) is 1558709626, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christina Kassab's specialty?
- Christina Kassab is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christina Kassab located?
- Christina Kassab's practice location on file with NPPES is 41 Mall Rd, Burlington, MA 01805-2018.
- What is Christina Kassab's phone number?
- The practice phone number listed in the NPPES registry for Christina Kassab is (781) 744-8000.
- Does Christina Kassab accept Medicare?
- Christina Kassab is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christina Kassab's NPI active?
- Yes — Christina Kassab's NPI (1558709626) is active in the NPPES registry as of the last update on 2023-02-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.