Kristin O'Neil-Callahan, M.D.
NPI 1215985445 · Internal Medicine Physician · Peabody, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kristin O'Neil-Callahan, M.D. is a Internal Medicine Physician provider in Peabody, MA (NPI 1215985445).
Provider details
- NPI number
- 1215985445
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 214128 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
1,169 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 309 | $130 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 248 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 217 | $131 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 111 | $92 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 66 | $19 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 66 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 74 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 293 | 94 |
| Lisinopril | 265 | 79 |
| Levothyroxine Sodium | 216 | 66 |
| Amlodipine Besylate | 189 | 56 |
| Hydrochlorothiazide | 181 | 56 |
| Simvastatin | 175 | 51 |
| Omeprazole | 131 | 42 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-04
- Last updated
- 2011-06-08
Frequently asked questions
- What is Kristin O'Neil-Callahan's NPI number?
- Kristin O'Neil-Callahan's National Provider Identifier (NPI) is 1215985445, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kristin O'Neil-Callahan's specialty?
- Kristin O'Neil-Callahan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kristin O'Neil-Callahan located?
- Kristin O'Neil-Callahan's practice location on file with NPPES is 2 Essex Dr, Peabody, MA 01960-2902.
- What is Kristin O'Neil-Callahan's phone number?
- The practice phone number listed in the NPPES registry for Kristin O'Neil-Callahan is (978) 532-2800.
- Does Kristin O'Neil-Callahan accept Medicare?
- Kristin O'Neil-Callahan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kristin O'Neil-Callahan's NPI active?
- Yes — Kristin O'Neil-Callahan's NPI (1215985445) is active in the NPPES registry as of the last update on 2011-06-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.