DR. ROMEO K CHANG MD
NPI 1508856600
Ophthalmology in Boston, MA

NPI Status: Active since October 28, 2005

Contact Information

464 HILLSIDE AVE
BOSTON EYE ASSOCIATES PC
BOSTON, MA
ZIP 02494
Phone: (781) 726-7333
Fax: (781) 726-7310

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  • Individual
  • Male
  • Ophthalmology

About ROMEO CHANG

This page provides the complete NPI Profile along with additional information for Romeo Chang, a provider established in Boston, Massachusetts with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1508856600 assigned on October 2005. The practitioner's primary taxonomy code is 207W00000X with license number 48274 (MA). The provider is registered as an individual and his NPI record was last updated 15 years ago.

NPI
1508856600
Provider Name
DR. ROMEO K CHANG MD
Gender
Male
Entity Type
Individual
Location Address
464 HILLSIDE AVE BOSTON EYE ASSOCIATES PC BOSTON, MA 02494
Location Phone
(781) 726-7333
Location Fax
(781) 726-7310
Mailing Address
464 HILLSIDE AVE SUITE 205 NEEDHAM, MA 02494
Mailing Phone
(781) 726-7333
Mailing Fax
(781) 726-7310
Is Sole Proprietor?
No
Enumeration Date
10-28-2005
Last Update Date
11-15-2011
Code Navigator

Ophthalmologists like Romeo Chang 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.
48274
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.

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
B97749MEDICARE UPIN (02) 
J03515MEDICARE ID-TYPE UNSPECIFIED (04)MA 
042874OTHER (01)MATUFTS HEALTH PLAN
6178081MEDICAID (05)MA 
J03515OTHER (01)MABCBS 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 1508856600, 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 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.

Pos 1
1
Doubled → 2
Pos 2
5
Unchanged
Pos 3
0
Doubled → 0
Pos 4
8
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
5
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
6
Unchanged
Pos 9
0
Doubled → 0
Check
0
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 6 → 12 → 3 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 0 + 8 + 1 + 6 + 5 + 1 + 2 + 6 + 0 + 24 = 60

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

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

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1508856600.

Other Providers at the Same Location


The following 16 providers are registered at the same or a nearby location.

Dermatology
464 HILLSIDE AVE, SUITE 303
NEEDHAM, MA 02494
Ophthalmology
464 HILLSIDE AVE, SUITE 205
NEEDHAM, MA 02494
Internal Medicine
464 HILLSIDE AVE, SUITE 304
NEEDHAM, MA 02494
Internal Medicine
464 HILLSIDE AVE, 3RD FLOOR
NEEDHAM, MA 02494
Family Medicine
464 HILLSIDE AVE
NEEDHAM, MA 02494
Optometrist (Corneal and Contact Management)
464 HILLSIDE AVE, SUITE 205
NEEDHAM, MA 02494
Internal Medicine
464 HILLSIDE AVE, SUITE 302
NEEDHAM, MA 02494
Dermatology
464 HILLSIDE AVE, SUITE 404
NEEDHAM, MA 02494
Nurse Practitioner (Family)
464 HILLSIDE AVE, #304
NEEDHAM, MA 02494
Optometrist
464 HILLSIDE AVE, SUITE #205
NEEDHAM, MA 02494
Internal Medicine (Gastroenterology)
464 HILLSIDE AVE, SUITE 201
NEEDHAM, MA 02494
Internal Medicine (Gastroenterology)
464 HILLSIDE AVE, SUITE 201
NEEDHAM, MA 02494
Durable Medical Equipment & Medical Supplies
464 HILLSIDE AVE, SUITE 205
NEEDHAM, MA 02494
Social Worker (Clinical)
464 HILLSIDE AVE
NEEDHAM, MA 02494
Optometrist (Corneal and Contact Management)
464 HILLSIDE AVE, SUITE 205
NEEDHAM, MA 02494
Ophthalmology
464 HILLSIDE AVE, SUITE 205
NEEDHAM, MA 02494

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1508856600, enumerated as an "individual" on October 28, 2005.

The provider is located at 464 HILLSIDE AVE BOSTON EYE ASSOCIATES PC BOSTON, MA 02494 and the phone number is (781) 726-7333.

Ophthalmology with taxonomy code 207W00000X.

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