Marianne Longacre, DO
NPI 1396776266 · Family Medicine Physician · Westerly, RI
Enrolled with Medicare as Practitioner - Osteopathic Manipulative Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marianne Longacre, DO is a Family Medicine Physician provider in Westerly, RI (NPI 1396776266).
Provider details
- NPI number
- 1396776266
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- DO00537 (RI)
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
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
878 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 | 426 | $134 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 186 | $138 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 75 | $95 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 53 | $188 |
| Administration of Influenza Virus VaccineG0008 | 36 | $33 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 96 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 327 | 74 |
| Atorvastatin Calcium | 266 | 68 |
| Gabapentin | 173 | 47 |
| Lisinopril | 172 | 57 |
| Losartan Potassium | 165 | 48 |
| Rosuvastatin Calcium | 155 | 41 |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-06
- Last updated
- 2022-11-18
- Certified
- 2022-11-18
Frequently asked questions
- What is Marianne Longacre's NPI number?
- Marianne Longacre's National Provider Identifier (NPI) is 1396776266, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marianne Longacre's specialty?
- Marianne Longacre is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marianne Longacre located?
- Marianne Longacre's practice location on file with NPPES is 45 Wells St Ste 201, Westerly, RI 02891-2927.
- What is Marianne Longacre's phone number?
- The practice phone number listed in the NPPES registry for Marianne Longacre is (401) 637-7202.
- Does Marianne Longacre accept Medicare?
- Marianne Longacre is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marianne Longacre's NPI active?
- Yes — Marianne Longacre's NPI (1396776266) is active in the NPPES registry as of the last update on 2022-11-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.