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Current Patients

New Patients

Welcome to The Lowell Diabetes & Endocrine Center web site.
Welcome to The Lowell Diabetes & Endocrine Center web site.

This office specializes in Endocrinology. We are accepting new patients with endocrine problems such as diabetes, osteoporosis, high cholesterol, calcium problems and problems related to the pituitary, thyroid, parathyroids, pancreas, testis and adrenal glands. The office is dedicated to educating our patients while providing compassionate and high quality medical care which is based on contemporary treatment guidelines and solid medical science.




Existing patients can connect us via our Patient Web Portal


New patients should print the History, Insurance and Privacy forms by clicking this link.


Bring the completed forms to your first visit, along with your pills and a copy of your medical records.

The Lowell Diabetes & Endocrine Center

20 Research Place, Suite 300, Chelmsford, MA 01863 (click for map)

Dr. Ariza is bilingual in English and Spanish.

Dr. Ariza is an expert in thyroid ultrasounds and has achieved "Endocrine Certification in Neck Ultrasonography" from the American College of Endocrinology.

The Lowell Diabetes and Endocrine Center has been certified to perform thyroid ultrasounds by the American Institute of Ultrasound Medicine.


Dr Zwerling is listed as a Tier 1 physicians in most insurance plans.

Dr. Zwerling has been recognized for providing high quality diabetes care

by the American Diabetes Association / National Committee for Quality Assurance.

Dr. Zwerling has discovered a new use for the medicine cinacalcet (Sensipar) which was

published in the medical journal Endocrine Practice (Jan/Feb 2012) under the title

"A Novel Use of Cinacalcet to Distinguish Primary Hyperparathyroidism from Hypercalcemia of Malignancy in a Patient with a Low-Normal Parathyroid Hormone Concentration 

Dr. Zwerling periodically blogs about health information technology issues...

A Time Out for Health IT. The Health Care Blog. 5/17/13 

The EMR Use Rule: An Open Letter to Massachusetts Physicians. The Health Care Blog. 5/27/13

Building cost and quality into the electronic medical record. The Health Care Blog. 6/18/13

Open letter from a small EMR vendor to our customers and our friends in Washington. The Health Care Blog. 12/5/13

Patient Web Portals, OpenNotes: Utilization Rates in a Small Medical Practice. 2/24/2014

Comment in response to: Tom Delbanc et al; Inviting Patients to Read Their Doctors' Notes: A Quasi-experimental Study and a Look Ahead. AIM. 2012 Oct;157(7):461-470. 

Certified electronic medical records threaten patient privacy 4/27/14



Office Hours

Mon: 8-4 (Dr Z & Dr A)

Tues: 8-4 (Dr Z & Dr A)

Wed: Closed

Thur: 8-4 (Dr Z & Dr A)

Fri: 8-2 (Dr A)

Our Staff

Hayward Zwerling M.D

Miguel Ariza, M.D

Michellle Iadarola, LPN

Karla Lopez, MA

Dianne Joy

Laura Henckler


20 Research Pl. Ste 300
N. Chelmsford, MA 01863
(fax) 978-656-9950