DAVID W. MERENS MD
NPI 1831260348
Obstetrics & Gynecology in Chelmsford, MA

NPI Status: Active since November 13, 2006

Contact Information

228 BILLERICA RD
CHELMSFORD, MA
ZIP 01824
Phone: (666) 697-8250
Fax: (978) 250-6200

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  • Individual
  • Male
  • Obstetrics & Gynecology

About DAVID MERENS

This page provides the complete NPI Profile along with additional information for David Merens, a women's health care provider established in Chelmsford, Massachusetts with a medical specialization in Obstetrics & Gynecology. The healthcare provider is registered in the NPI registry with number 1831260348 assigned on November 2006. The practitioner's primary taxonomy code is 207V00000X with license number 51371 (MA). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI
1831260348
Provider Name
DAVID W. MERENS MD
Gender
Male
Entity Type
Individual
Location Address
228 BILLERICA RD CHELMSFORD, MA 01824
Location Phone
(666) 697-8250
Location Fax
(978) 250-6200
Mailing Address
147 MILK ST PROVIDER ENROLLMENT 9TH FLOOR BOSTON, MA 02109
Is Sole Proprietor?
No
Enumeration Date
11-13-2006
Last Update Date
11-23-2021
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Women's health care providers like David Merens treat and diagnose diseases and conditions that affect a woman's physical and emotional health. Women's health professionals come from a variety of different specialties, including obstetrician/gynecologists, general surgeons, perinatologists, physician assistants, nurse practitioners or nurse midwives. A women's health provider might help you with family planning, breast care, pregnancy and child birth, osteoporosis, menopause, heart disease, etc.

Location Map

Secondary Locations

  • 101 Dudley St
    Providence, RI 02905
    (401) 453-7950
  • 455 Toll Gate Rd
    Warwick, RI 02886
    (401) 737-7010

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

Obstetrics & Gynecology

Taxonomy Code
207V00000X
Type
Allopathic & Osteopathic Physicians
License No.
51371
License State
MA
Taxonomy Description
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207V00000XAllopathic & Osteopathic Physicians

Obstetrics & Gynecology

MD17766 (RI)

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
J02295OTHER (01)MABLUE CROSS
2086735MEDICAID (05)MA 
AA17612OTHER (01)MAHARVARD PILGRIM
0002837OTHER (01)MANEIGHBORHOOD HEALTH PLAN
051371OTHER (01)MATUFTS
0765499OTHER (01)MACIGNA
32330OTHER (01)MAFALLON
4196690OTHER (01)MAAETNA

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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 1831260348, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

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
8
Unchanged
Pos 3
3
Doubled → 6
Pos 4
1
Unchanged
Pos 5
2
Doubled → 4
Pos 6
6
Unchanged
Pos 7
0
Doubled → 0
Pos 8
3
Unchanged
Pos 9
4
Doubled → 8
Check
8
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 3 → 6 2 → 4 0 → 0 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 6 + 1 + 4 + 6 + 0 + 3 + 8 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1831260348.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Pharmacist
228 BILLERICA RD, PHARMACY DEPARTMENT
CHELMSFORD, MA 01824
Pharmacist
228 BILLERICA RD
CHELMSFORD, MA 01824
Pharmacist
228 BILLERICA RD
CHELMSFORD, MA 01824
Pediatrics
228 BILLERICA RD
CHELMSFORD, MA 01824
Pediatrics
228 BILLERICA RD, PEDIATRICS DEPT
CHELMSFORD, MA 01824
Pediatrics
228 BILLERICA RD
CHELMSFORD, MA 01824
Nurse Practitioner (Pediatrics)
228 BILLERICA RD
CHELMSFORD, MA 01824
Dentist (Pediatric Dentistry)
228 BILLERICA RD
CHELMSFORD, MA 01824
Physical Therapist
228 BILLERICA RD
CHELMSFORD, MA 01824
Physical Therapist
228 BILLERICA RD
CHELMSFORD, MA 01824
Internal Medicine
228 BILLERICA RD, INTERNAL MEDICINE
CHELMSFORD, MA 01824
Preventive Medicine (Occupational Medicine)
228 BILLERICA RD, ADULT URGENT CARE
CHELMSFORD, MA 01824
Psychiatry & Neurology (Psychiatry)
228 BILLERICA RD
CHELMSFORD, MA 01824
Psychiatry & Neurology (Psychiatry)
228 BILLERICA RD
CHELMSFORD, MA 01824
Nurse Practitioner
228 BILLERICA RD
CHELMSFORD, MA 01824
Social Worker (Clinical)
228 BILLERICA RD
CHELMSFORD, MA 01824
Obstetrics & Gynecology
228 BILLERICA RD
CHELMSFORD, MA 01824
Advanced Practice Midwife
228 BILLERICA RD
CHELMSFORD, MA 01824
Speech-Language Pathologist
228 BILLERICA RD
CHELMSFORD, MA 01824
Psychiatry & Neurology (Psychiatry)
228 BILLERICA RD
CHELMSFORD, MA 01824

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1831260348, enumerated as an "individual" on November 13, 2006.

The provider is located at 228 BILLERICA RD CHELMSFORD, MA 01824 and the phone number is (666) 697-8250.

Obstetrics & Gynecology with taxonomy code 207V00000X.

The provider might be accepting Accepts: Blue Cross Blue Shield, Medicare, Medicaid, Tufts. Please consult your insurance carrier or call the provider to verify.