Physician Profile
Margaret A. Ferry, MD practices endocrinology, diabetes & metabolism in Greenfield, MA. Margaret is a 1990 graduate of Hahnemann University College of Medicine. According to Medicare claims data, Margaret cared for 753 Medicare patients across 1,082 services. The services billed most often include established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and telephone medical discussion with physician, 21-30 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
33 RIDDELL ST SUITE 8
Greenfield, MA 01301
Within Endocrinology, Diabetes and Metabolism generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Adrenal
Adrenal disorders
Blood sugar disorders
Bone and calcium disorders
Bones
Diabetes
Endocrine tumors
Hormone disorders
Hormones
Metabolic disorders
Metabolism
Parathyroid
Pituitary
Pituitary disorders
Thyroid
Thyroid disorders
Most searched procedures
Adrenal
Adrenal evaluations
Blood sugar management
Bone evaluations
Bone treatments
Diabetes
Diabetes education
Diabetes preventive care
Genetic evaluations
Hormone treatments
Hormones
Metabolic evaluations
Metabolism
Parathyroid
Pituitary
Pituitary evaluations
Thyroid
Thyroid procedures
Weight & Metabolism
1,082 services · 753 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with provider supplied equipment | Treatment | 95250 |
47 | More often than most peers in Endocrinology, Diabetes &… |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
512 | More than most peers in Endocrinology, Diabetes &… |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
234 | As often as other peers in Endocrinology, Diabetes &… |
| Telephone medical discussion with physician, 21-30 minutes | Office visit | 99443 |
174 | More than most peers in Endocrinology, Diabetes &… |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
60 | As often as other peers in Endocrinology, Diabetes &… |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
43 | More often than most peers in Endocrinology, Diabetes &… |
| Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | Billing code | G2212 |
12 | Less often than most peers in Endocrinology, Diabetes &… |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Ferry is an endocrinologist in Greenfield, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Endocrinology, Diabetes & Metabolism”.
NPI registry
Dr. Ferry is listed at 33 Riddell St Suite 8, Greenfield, MA 01301. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (413) 773-7400. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Ferry's National Provider Identifier is 1457454894. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Ferry attended Hahnemann University College of Medicine, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
Dr. Ferry has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Ferry provides treatments such as continuous monitoring of blood sugar level in tissue fluid using sensor under skin with provider supplied equipment, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ferry. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.