MARC A GREENWALD MD
NPI 1700850807
Internal Medicine in Brockton, MA

NPI Status: Active since February 15, 2006

Contact Information

680 CENTRE STREET
BROCKTON, MA
ZIP 02302
Phone: (508) 941-7202
Fax: (508) 941-6388

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  • Individual
  • Male
  • Internal Medicine

About MARC GREENWALD

This page provides the complete NPI Profile along with additional information for Marc Greenwald, an internist established in Brockton, Massachusetts with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1700850807 assigned on February 2006. The practitioner's primary taxonomy code is 207R00000X with license number 220491 (MA). The provider is registered as an individual and his NPI record was last updated 15 years ago.

NPI
1700850807
Provider Name
MARC A GREENWALD MD
Gender
Male
Entity Type
Individual
Location Address
680 CENTRE STREET BROCKTON, MA 02302
Location Phone
(508) 941-7202
Location Fax
(508) 941-6388
Mailing Address
680 CENTRE STREET BROCKTON, MA 02302
Mailing Phone
(508) 941-7202
Mailing Fax
(508) 941-6388
Is Sole Proprietor?
No
Enumeration Date
02-15-2006
Last Update Date
05-04-2011
Code Navigator

An internist like Marc Greenwald 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

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
220491
License State
MA
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
042472266OTHER (01)UNITED HEALTHCARE
4094854OTHER (01)AETNA US HEALTHCARE
042472266OTHER (01)PRIVATE HEALTHCARE SYSTEM
467892OTHER (01)TUFTS HEALTH PLAN
784025OTHER (01)MVP HEALTH CARE
AA10928OTHER (01)HARVARD PILGRIM
B81374MEDICARE UPIN (02) 
042472266OTHER (01)THREE RIVERS
67982OTHER (01)FALLON COMM HEALTH PLAN
2037114MEDICAID (05)MA 
A37417MEDICARE PIN (08)MA 
J27427OTHER (01)BLUE CARE ELECT
4599158OTHER (01)CIGNA HEALTH PLAN
J27427OTHER (01)BLUE SHIELD INDEMNITY
042472266OTHER (01)ONE HEALTH PLAN
0406618OTHER (01)EVERCARE
J27427OTHER (01)BLUE SHIELD HMO BLUE
2225093OTHER (01)FIRST HEALTH

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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 1700850807, we treat the final digit (7) 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 7).

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.

Pos 1
1
Doubled → 2
Pos 2
7
Unchanged
Pos 3
0
Doubled → 0
Pos 4
0
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
5
Unchanged
Pos 7
0
Doubled → 0
Pos 8
8
Unchanged
Pos 9
0
Doubled → 0
Check
7
Target digit
Regular digit Doubled digit Check digit

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.

1 → 2 0 → 0 8 → 16 → 7 0 → 0 0 → 0

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 7 + 0 + 0 + 1 + 6 + 5 + 0 + 8 + 0 + 24 = 53

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1700850807.

Other Providers at the Same Location


The following 6 providers are registered at the same or a nearby location.

Emergency Medicine
680 CENTRE STREET, BROCKTON HOSPITAL
BROCKTON, MA 02302
Psychiatry & Neurology (Psychiatry)
680 CENTRE STREET
BROCKTON, MA 02302
Clinical Nurse Specialist (Perioperative)
680 CENTRE STREET, SIGNATURE HEALTHCARE BROCKTON HOSPITAL
BROCKTON, MA 02302
Specialist/Technologist (Athletic Trainer)
680 CENTRE STREET
BROCKTON, MA 02302
Dietitian, Registered
680 CENTRE STREET
BROCKTON, MA 02302
Registered Nurse (Psychiatric/Mental Health, Adult)
680 CENTRE STREET
BROCKTON, MA 02302

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1700850807, enumerated as an "individual" on February 15, 2006.

The provider is located at 680 CENTRE STREET BROCKTON, MA 02302 and the phone number is (508) 941-7202.

Internal Medicine with taxonomy code 207R00000X.

The provider might be accepting Accepts: Medicare, Medicaid, Aetna, Tufts Health Plan,. Please consult your insurance carrier or call the provider to verify.