DR. PAUL BARSAM M.D.
NPI 1245206176
Ophthalmology in Cambridge, MA

NPI Status: Active since February 28, 2006

Contact Information

725 CONCORD AVE
CAMBRIDGE, MA
ZIP 02138
Phone: (617) 864-8822
Fax: (617) 864-9966

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  • Individual
  • Male
  • Ophthalmology

About PAUL BARSAM

This page provides the complete NPI Profile along with additional information for Paul Barsam, a provider established in Cambridge, Massachusetts with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1245206176 assigned on February 2006. The practitioner's primary taxonomy code is 207W00000X with license number 29780 (MA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1245206176
Provider Name
DR. PAUL BARSAM M.D.
Gender
Male
Entity Type
Individual
Location Address
725 CONCORD AVE CAMBRIDGE, MA 02138
Location Phone
(617) 864-8822
Location Fax
(617) 864-9966
Mailing Address
170 RUTLEDGE RD BELMONT, MA 02478
Mailing Phone
(617) 484-4322
Mailing Fax
(617) 864-9966
Is Sole Proprietor?
Yes
Enumeration Date
02-28-2006
Last Update Date
07-08-2007
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Ophthalmologists like Paul Barsam specialize in diagnosing and treating eye conditions. They may perform surgeries to correct vision issues or prevent vision loss due to diseases like glaucoma. Additionally, they can provide eyeglasses, prescribe contact lenses, and offer other vision-related services.

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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

Ophthalmology

Taxonomy Code
207W00000X
Type
Allopathic & Osteopathic Physicians
License No.
29780
License State
MA
Taxonomy Description
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

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.

*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
B02067MEDICARE ID-TYPE UNSPECIFIED (04)MA 
A30336MEDICARE UPIN (02)MA 

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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 1245206176, we treat the final digit (6) 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 6).

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
2
Unchanged
Pos 3
4
Doubled → 8
Pos 4
5
Unchanged
Pos 5
2
Doubled → 4
Pos 6
0
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
1
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
6
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 4 → 8 2 → 4 6 → 12 → 3 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 8 + 5 + 4 + 0 + 1 + 2 + 1 + 1 + 4 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1245206176.

Other Providers at the Same Location


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

Internal Medicine
725 CONCORD AVE, SUITE 4100
CAMBRIDGE, MA 02138
Internal Medicine
725 CONCORD AVE, SUITE 4100
CAMBRIDGE, MA 02138
Internal Medicine
725 CONCORD AVE, SUITE 4100
CAMBRIDGE, MA 02138
Internal Medicine
725 CONCORD AVE, SUITE 4100
CAMBRIDGE, MA 02138
Dermatology
725 CONCORD AVE, SUITE 4100
CAMBRIDGE, MA 02138
Internal Medicine
725 CONCORD AVE, SUITE 4100
CAMBRIDGE, MA 02138
Internal Medicine
725 CONCORD AVE, SUITE 4100
CAMBRIDGE, MA 02138
Obstetrics & Gynecology
725 CONCORD AVE, STE 3500
CAMBRIDGE, MA 02138
Internal Medicine
725 CONCORD AVE, BELMONT MEDICAL ASSOCIATES
CAMBRIDGE, MA 02138
Internal Medicine
725 CONCORD AVE
CAMBRIDGE, MA 02138
Internal Medicine
725 CONCORD AVE, SUITE 2000
CAMBRIDGE, MA 02138
Internal Medicine
725 CONCORD AVE, SUITE 2000
CAMBRIDGE, MA 02138
Internal Medicine
725 CONCORD AVE, SUITE 2000
CAMBRIDGE, MA 02138
Audiologist
725 CONCORD AVE, SUITE 2300
CAMBRIDGE, MA 02138
Nurse Practitioner (Family)
725 CONCORD AVE, SUITE 5100
CAMBRIDGE, MA 02138
Obstetrics & Gynecology
725 CONCORD AVE, STE 3300
CAMBRIDGE, MA 02138
Chiropractor
725 CONCORD AVE, SUITE 4100
CAMBRIDGE, MA 02138
Nurse Practitioner (Women's Health)
725 CONCORD AVE, STE 3300
CAMBRIDGE, MA 02138
Physical Therapist
725 CONCORD AVE, SUITE 2200
CAMBRIDGE, MA 02138
Nurse Practitioner (Family)
725 CONCORD AVE, SUITE 2000
CAMBRIDGE, MA 02138

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1245206176, enumerated as an "individual" on February 28, 2006.

The provider is located at 725 CONCORD AVE CAMBRIDGE, MA 02138 and the phone number is (617) 864-8822.

Ophthalmology with taxonomy code 207W00000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.