DR. HAYWARD KEITH ZWERLING M.D.
NPI 1447252770
Internal Medicine - Endocrinology, Diabetes & Metabolism in Dracut, MA
NPI Status: Active since May 31, 2005
Contact Information
9 LOON HILL RD STE 300
DRACUT, MA
ZIP 01826
Phone: (978) 323-0360
Fax: (978) 323-0362
- Individual
- Male
- Internal Medicine
- Endocrinology, Diabetes & Metabolism
About HAYWARD ZWERLING
This page provides the complete NPI Profile along with additional information for Hayward Zwerling, an internist established in Dracut, Massachusetts with a medical specialization in Internal Medicine, focusing in endocrinology, diabetes & metabolism . The healthcare provider is registered in the NPI registry with number 1447252770 assigned on May 2005. The practitioner's primary taxonomy code is 207RE0101X with license number 58946 (MA). The provider is registered as an individual and his NPI record was last updated 5 years ago.
- NPI
- 1447252770
- Provider Name
- DR. HAYWARD KEITH ZWERLING M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 9 LOON HILL RD STE 300 DRACUT, MA 01826
- Location Phone
- (978) 323-0360
- Location Fax
- (978) 323-0362
- Mailing Address
- 9 LOON HILL RD STE 300 DRACUT, MA 01826
- Mailing Phone
- (978) 323-0360
- Mailing Fax
- (978) 323-0362
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 05-31-2005
- Last Update Date
- 02-19-2021
- Code Navigator
An internist like Hayward Zwerling is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Internal Medicine Endocrinology, Diabetes & Metabolism
- Taxonomy Code
- 207RE0101X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 58946
- License State
- MA
- Taxonomy Description
- An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Blood glucose (sugar) test performed by hand-held instrument
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with provider supplied equipment
Established patient office or other outpatient visit, 20-29 minutes
Established patient office or other outpatient visit, 30-39 minutes
Established patient office or other outpatient visit, 40-54 minutes
Hemoglobin a1c level
New patient office or other outpatient visit, 45-59 minutes
A blood glucose test uses a handheld device to measure the amount of sugar in your blood. A small prick on your finger allows a drop of blood to be placed on a test strip, which is then read by the device. This helps monitor and manage diabetes effectively.
This service was performed 81 times for 65 patientsThis procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.
This service was performed 17 times for 14 patientsThis process involves a tiny sensor placed under your skin that checks your blood sugar levels in tissue fluid regularly. The sensor sends these readings to a device, allowing you to track your levels in real-time. This is provided by your healthcare provider.
This service was performed 17 times for 14 patientsThis is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
This service was performed 127 times for 123 patientsThis is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
This service was performed 252 times for 166 patientsThis service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
This service was performed 23 times for 23 patientsHemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
This service was performed 95 times for 77 patientsThis is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
This service was performed 24 times for 24 patientsReviews for DR. HAYWARD KEITH ZWERLING M.D.
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NPI NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1447252770, we treat the final digit (0) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 70 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1447252770, enumerated as an "individual" on May 31, 2005.
The provider is located at 9 LOON HILL RD STE 300 DRACUT, MA 01826 and the phone number is (978) 323-0360.
Internal Medicine with taxonomy code 207RE0101X and a focus in Endocrinology, Diabetes & Metabolism.
