Margaret Ferry, MD
NPI 1457454894 · Endocrinology, Diabetes & Metabolism Physician · Greenfield, MA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Ferry, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Greenfield, MA (NPI 1457454894).
Provider details
- NPI number
- 1457454894
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 81348 (MA)
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
1,082 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 | 512 | $183 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 234 | $130 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 174 | $130 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 60 | $93 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Provider Supplied Equipment95250 | 47 | $99 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 92 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 802 | 200 |
| Metformin Hclbrand: Metformin Hcl Er | 440 | 119 |
| Semaglutidebrand: Ozempic | 428 | 80 |
| Rosuvastatin Calcium | 356 | 100 |
| Empagliflozinbrand: Jardiance | 347 | 72 |
| Alendronate Sodium | 295 | 85 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-07
- Last updated
- 2020-10-16
- Certified
- 2020-10-16
Frequently asked questions
- What is Margaret Ferry's NPI number?
- Margaret Ferry's National Provider Identifier (NPI) is 1457454894, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Ferry's specialty?
- Margaret Ferry is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Ferry located?
- Margaret Ferry's practice location on file with NPPES is 33 Riddell St, Greenfield, MA 01301.
- What is Margaret Ferry's phone number?
- The practice phone number listed in the NPPES registry for Margaret Ferry is (413) 773-7400.
- Does Margaret Ferry accept Medicare?
- Margaret Ferry is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Ferry's NPI active?
- Yes — Margaret Ferry's NPI (1457454894) is active in the NPPES registry as of the last update on 2020-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.