Shirley Marshall, NP
NPI 1265984603 · Nurse Practitioner · Boston, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shirley Marshall, NP is a Nurse Practitioner provider in Boston, MA (NPI 1265984603).
Provider details
- NPI number
- 1265984603
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- RN257382 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 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
230 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 189 | $161 |
| Administration of Influenza Virus VaccineG0008 | 26 | $34 |
| Administration of Pneumococcal VaccineG0009 | 15 | $35 |
Typical Medicare-allowed amounts for these services range $34–$161 (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 · 40 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 385 | 100 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 349 | 96 |
| Prednisone | 307 | 92 |
| Tacrolimus | 296 | 69 |
| Famotidine | 185 | 52 |
| Atovaquone | 174 | 37 |
| Omeprazole | 120 | 45 |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-11-02
- Last updated
- 2018-03-01
Frequently asked questions
- What is Shirley Marshall's NPI number?
- Shirley Marshall's National Provider Identifier (NPI) is 1265984603, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shirley Marshall's specialty?
- Shirley Marshall is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Shirley Marshall located?
- Shirley Marshall's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6110.
- What is Shirley Marshall's phone number?
- The practice phone number listed in the NPPES registry for Shirley Marshall is (617) 732-5500.
- Does Shirley Marshall accept Medicare?
- Shirley Marshall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shirley Marshall's NPI active?
- Yes — Shirley Marshall's NPI (1265984603) is active in the NPPES registry as of the last update on 2018-03-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.