Mary Darcy, NP
NPI 1649298654 · Nurse Practitioner · Dorchester Center, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Darcy, NP is a Nurse Practitioner provider in Dorchester Center, MA (NPI 1649298654).
Provider details
- NPI number
- 1649298654
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 132024 (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
263 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 117 | $15 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 87 | $85 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 45 | $119 |
| Transitional Care Management Services for Problem of at Least Moderate Complexity99495 | 14 | $193 |
Typical Medicare-allowed amounts for these services range $15–$193 (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 · 93 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 422 | 214 |
| Lisinopril | 230 | 126 |
| Amlodipine Besylate | 224 | 127 |
| Levothyroxine Sodium | 220 | 118 |
| Metoprolol Succinate | 192 | 89 |
| Losartan Potassium | 172 | 85 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-17
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Darcy's NPI number?
- Mary Darcy's National Provider Identifier (NPI) is 1649298654, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Darcy's specialty?
- Mary Darcy is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Darcy located?
- Mary Darcy's practice location on file with NPPES is 2100 Dorchester Ave, Dorchester Center, MA 02124-5615.
- What is Mary Darcy's phone number?
- The practice phone number listed in the NPPES registry for Mary Darcy is (617) 296-4000.
- Does Mary Darcy accept Medicare?
- Mary Darcy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Darcy's NPI active?
- Yes — Mary Darcy's NPI (1649298654) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.