Margaret O'Connor, APRN BC
NPI 1922216415 · Adult Health Nurse Practitioner · Boston, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret O'Connor, APRN BC is a Adult Health Nurse Practitioner provider in Boston, MA (NPI 1922216415).
Provider details
- NPI number
- 1922216415
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN BC
- Sex
- Female
- Sole proprietor
- No
- License
- RN 155860 NP (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
248 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 | 192 | $86 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 29 | $57 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 27 | $129 |
Typical Medicare-allowed amounts for these services range $57–$129 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 49 | 16 |
| Atorvastatin Calcium | 47 | 26 |
| Gabapentin | 46 | 16 |
| Omeprazole | 41 | 16 |
| Lisinopril | 40 | 16 |
| Apixabanbrand: Eliquis | 32 | — |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-18
- Last updated
- 2011-03-03
Frequently asked questions
- What is Margaret O'Connor's NPI number?
- Margaret O'Connor's National Provider Identifier (NPI) is 1922216415, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret O'Connor's specialty?
- Margaret O'Connor is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret O'Connor located?
- Margaret O'Connor's practice location on file with NPPES is 750 Washington Street, Boston, MA 02111-1526.
- What is Margaret O'Connor's phone number?
- The practice phone number listed in the NPPES registry for Margaret O'Connor is (617) 636-7889.
- Does Margaret O'Connor accept Medicare?
- Margaret O'Connor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret O'Connor's NPI active?
- Yes — Margaret O'Connor's NPI (1922216415) is active in the NPPES registry as of the last update on 2011-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.