Christin Knowlton, M.D.
NPI 1679733422 · Radiation Oncology Physician · New Haven, CT
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christin Knowlton, M.D. is a Radiation Oncology Physician provider in New Haven, CT (NPI 1679733422).
Provider details
- NPI number
- 1679733422
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- MT189860 (PA)
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
18 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
571 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) |
|---|---|---|
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 109 | $46 |
| Design and Construction of Complex Radiation Treatment Device77334 | 70 | $57 |
| Calculation of Radiation Therapy Dose77300 | 67 | $31 |
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 66 | $46 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 47 | $196 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 34 | $68 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Mometasone Furoate | 27 | 21 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-16
- Last updated
- 2011-07-21
Frequently asked questions
- What is Christin Knowlton's NPI number?
- Christin Knowlton's National Provider Identifier (NPI) is 1679733422, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christin Knowlton's specialty?
- Christin Knowlton is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Christin Knowlton located?
- Christin Knowlton's practice location on file with NPPES is 1450 Chapel St, New Haven, CT 06511-4405.
- What is Christin Knowlton's phone number?
- The practice phone number listed in the NPPES registry for Christin Knowlton is (203) 789-3131.
- Does Christin Knowlton accept Medicare?
- Christin Knowlton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christin Knowlton's NPI active?
- Yes — Christin Knowlton's NPI (1679733422) is active in the NPPES registry as of the last update on 2011-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.