Shirley Gillies, NP
NPI 1801854849 · Family Nurse Practitioner · Cambridge, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shirley Gillies, NP is a Family Nurse Practitioner provider in Cambridge, MA (NPI 1801854849).
Provider details
- NPI number
- 1801854849
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 175285 (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
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
1,539 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 524 | $97 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 126 | $70 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 114 | $166 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 102 | $114 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 99 | $138 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 82 | 28 |
| Lorazepam | 75 | 27 |
| Gabapentin | 73 | 24 |
| Metoprolol Succinate | 68 | 24 |
| Amlodipine Besylate | 66 | 25 |
| Levothyroxine Sodium | 55 | 13 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-01
- Last updated
- 2010-03-02
Frequently asked questions
- What is Shirley Gillies's NPI number?
- Shirley Gillies's National Provider Identifier (NPI) is 1801854849, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shirley Gillies's specialty?
- Shirley Gillies is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Shirley Gillies located?
- Shirley Gillies's practice location on file with NPPES is 300 Mount Auburn St, Cambridge, MA 02138-5600.
- What is Shirley Gillies's phone number?
- The practice phone number listed in the NPPES registry for Shirley Gillies is (617) 868-0847.
- Does Shirley Gillies accept Medicare?
- Shirley Gillies is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shirley Gillies's NPI active?
- Yes — Shirley Gillies's NPI (1801854849) is active in the NPPES registry as of the last update on 2010-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.